September 2012

September 2012, Volume 14, No. 9

The Fast and the Frugal

2013 Cadillac ATS The all-new 2013 Cadillac ATS is offered in four models: a well-equipped standard model and Luxury, Performance and Premium Collections. The ATS features an all-new, lightweight, rear-wheel-drive architecture. At less than 3,400 pounds (1,542 kg), it has one of the lowest curb weights in the compact luxury sports sedan segment. Allwheel drive also is available. Various options and packages include Cadillac CUE, the Bose® Cabin Surround audio system and a navigation system.

CUE Features The ATS is offered with Cadillac CUE (with or without navigation). CUE (Cadillac User Experience) accommodates up to 10 Bluetooth-enabled mobile devices, USBs, SD cards and MP3 players. The eight-inch LCD multitouch sensitive screen displays CUE’s home page, which resembles a smart phone screen. In addition to CUE, the ATS is offered with other technologies, including: Cadillac CUE in the ATS • Reconfigurable 5.7-inch instrument panel cluster display

• Full-color reconfigurable Heads-Up Display. • Keyless access and keyless push-button start continued on page 2

2013 Chevrolet Spark The 2013 Chevrolet Spark is the first GM entry in the growing mini-car market. Three models are available for the U.S. and ­Canadian markets — LS, 1LT, and 2LT. The 2013 Spark utilizes GM’s Global A electrical architecture, which ­requires the use of the Global Diagnostic System 2 (GDS 2) software and the Multi Diagnostic Interface (MDI) module. When using TIS2Web, the Spark is listed under Chevrolet-GM Korea.

Powertrain The Spark is powered by a 1.2L 4-cylinder engine (RPO LLO). The dualoverhead cam engine is installed transversely, and is available with ­either a 5-speed manual or 4-speed automatic ­transmission. This compact inline 4-cylinder engine ­features Dual Continuous Variable Cam Phasing (DCVCP), electronically-controlled thermostat and low-friction engine oil, with low maintenance, low emissions and outstanding fuel economy. continued on page 4

Contents 2013 Cadillac ATS. . . . . . . . . . . . . . . . . . . . . . . . . . 1 2013 Chevrolet Spark. . . . . . . . . . . . . . . . . . . . . . . 1 Control Circuits and Test Lamps. . . . . . . . . . . . . . . 5 Disabling Transport Mode. . . . . . . . . . . . . . . . . . . . 5 Camaro 1LE and Dusk Special Edition . . . . . . . . . . 6 Fuel Gauge Inoperative. . . . . . . . . . . . . . . . . . . . . . 7 Dash Pad Appearance. . . . . . . . . . . . . . . . . . . . . . . 7 West Coast Mirror Mounting Points. . . . . . . . . . . . 7 Accessory Remote Start Kits . . . . . . . . . . . . . . . . . 7 Fender and Fascia Alignment . . . . . . . . . . . . . . . . . 8 Sunroof Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Service Suspension System Message. . . . . . . . . . . 8 A/C Blows Warm Air . . . . . . . . . . . . . . . . . . . . . . . 8 Transmission Information Summary . . . . . . . . . . . . 9 HVAC Fan Operates on High Speed Only. . . . . . . . 9 Steering Wheel Air Bag Shorting Bar. . . . . . . . . . . 9 Car Issues – Fix It Right the First Time. . . . . . . . . 10 Truck Issues – Fix It Right the First Time. . . . . . . . 10 Emerging Issues Seminar . . . . . . . . . . . . . . . . . . . 10

Customer Care and Aftersales

2013 ATS –

continued from page 1

Trio of Engines

Additional engine features include:

The ATS offers three engine choices, including two new fourcylinders and Cadillac’s renowned 3.6L V-6. All of the engines feature direct injection and dual overhead camshafts with ­continuously variable valve timing.

• Modular b­alance shaft system in the oil pan • Low-friction hydraulic ­roller-finger valve operation

Increased efficiency for the new four-cylinders was achieved several ways: • Lower engine friction, reduced 16 percent

• Hydraulic tensioner keeps the timing chain adjusted for life

• Variable-displacement oil pump • Actively controlled thermostat with the 2.5L engine Some of the elements that contribute to the refinement of both four-cylinder engines include:

• Rotocast aluminum cylinder head with sodium-filled exhaust valves

• Balance shafts and integrated oil pump located in a module in the oil pan, to reduce noise and vibration • Strong, stiff forged-steel crankshaft that enables quieter and smoother engine operation at high rpm

2.0L turbo 4-cylinder engine

To see more about the 2.0L turbo’s development, click here.

• Inverted-tooth chains for the camshaft and balance shaft for ­quieter operation

The available 3.6L V-6 engine (RPO LFX) is the same powerful and technologically advanced engine introduced in the 2012 CTS. It is rated at 321 horsepower (239 kW) and 275 lb.-ft. of torque (373 Nm). Like the 2.5L engine, the 3.6L V-6 is matched exclusively with the Hydra-Matic 6L45 six-speed automatic transmission with tap-shift control.

• Unique two-piece oil pan with an aluminum upper section that provides structural support and a stamped steel lower section that dampens noise • Cast aluminum bedplate with cast iron bearing cap inserts to ­increase dynamic stiffness and reduce noise and vibration

6-Speed Manual Transmission

• Structural front engine cover, structural cam cover, and light weight composite acoustic intake manifold cover for sound ­attenuation

The Tremec M3L TR3160 six-speed manual transmission is similar in design to the high-performance Tremec transmission found in the CTS-V series. The transmission features carbon synchronizers for reduced shift effort, hard-finished gears for greater refinement and gear ratios tailored to the turbocharged engine’s broad torque band.

The 2.5L 4-cylinder ­engine (RPO LCV) is rated at 202 horsepower (151 kW) and 191 lb.-ft. of torque (259 Nm). It’s paired with the Hydra-Matic 6L45 six-speed automatic transmission with tap-shift control.

A mechanical limited-slip differential is standard with the six-speed manual transmission and included with the FE3 sport suspension package. It is housed in a robust 8.6-inch carrier. Other models feature a 7.67-inch carrier.

The all-new 2.0L turbo 4-cylinder engine (RPO LTG) makes its debut in the ATS, advancing a legacy of high-performance turbo engines with greater efficiency and more technology. Along with its 272 2.5L 4-cylinder engine horsepower (203 kW), the 2.0T’s torque curve is broad and robust — delivering 90 percent of its peak 260 lb.-ft. of torque (353 Nm) from 1,700 rpm to 5,500 rpm — for immediate power at all speeds. At 135 hp/L, the new 2.0T is one of the most power-dense engines in the industry. The 2.0T is offered with the Hydra-Matic 6L45 sixspeed automatic or the Tremec M3L TR3160 manual transmission, a choice that’s unavailable in some luxury cars.

Click here for engine and transmission specifications.

Performance and Control Supporting the ATS’s new suspension designs are advanced damping, steering and braking systems, including Magnetic Ride Control (MRC), which is the heart of the FE3 Sport Suspension package. This package also includes a mechanical limited-slip differential, high-capacity cooling system and 18-inch summer-performance tires. MRC is a real-time damping system that “reads” the road every millisecond and can change damping in only five milliseconds. Adjustable settings for the FE3 suspension allow the driver to ­select different ranges of damping for Magnetic Ride Control, including a competitive mode that also adjusts the intervention of the stability control and traction control systems. The front multi-link MacPherson strut suspension uses a doublepivot design that incorporates a pair of ball joints and lower control links instead of a conventional wishbone at each wheel. A soft fore/aft ride link provides greater isolation from impacts and a stiff, laterally positioned handling link provides more direct steering feel and quicker lateral response.

continued on page 3

2

September 2012

2013 ATS –

continued from page 2

The lightweight suspension and chassis components of the ATS offer excellent ride and handling.

The control arms, the spindle and the body form an effective four-bar link for each side of the front suspension. There is also a direct-acting stabilizer bar. At the rear of the ATS is the first five-link independent suspension in a Cadillac. Four handling links (upper and lower control arms) are used at each side to control wheel motion and a toe link at each wheel provides additional horizontal control, particularly during hard cornering. The stiff links are mounted on a cradle made of steel with hydroformed side rails to help optimize the car’s structural stiffness and mass. All ATS models come with a premium electric, variable-assist power steering gear from ZF Steering Systems. The steering column and intermediate shaft feature stiff, direct-acting and lowfriction ball bearing designs for almost no lash in the entire steering system. An aluminum hood, magnesium engine mount brackets and lightweight, natural-fiber door trim panels contribute to the ATS’s low overall mass. But some weight was deemed not only beneficial, but essential to the ATS’s driving experience. An example is the cast iron differential: Engineers found they could improve fuel economy with a cast iron differential rather than a lighter aluminum version. And while the rear suspension is mostly steel, the focus on load management and straight links enabled significant weight ­savings without using alternate materials. This helps offset the weight of the engine and transmission at the front of the vehicle, helping the ATS deliver its 50/50 weight balance, while also contributing to lower noise and vibration. A similar approach was taken on the wheels, where extra structural aluminum was strategically added to further reduce vibration. Four-wheel disc brakes are standard on all models, with available Brembo performance brakes. They are matched with a four-channel ABS system that is integrated with standard StabiliTrak stability control and full-function traction control. September 2012

Seventeen-inch (17x8-inch) wheels with 225/40-series tires are standard and 18x8-inch wheels with 255/35-series rubber are offered on the ATS, with run-flat tires. Models with the FE3 ­suspension feature 18x9-inch rear wheels.

Advancing Safety The 2013 Cadillac ATS’s safety story is based on a “control and alert” strategy that employs advanced technologies — including radar — to help avoid crashes. Visual and audible alerts help drivers identify potential crash situations and even intervene when a crash threat appears more imminent. Many of the advanced safety features are standard and others are offered in a pair of available Enhanced Safety System (ESS) packages, similar to the safety packages found on the new XTS. They include the Safety Alert Seat, Lane Departure Warning, Forward Collision Alert, Automatic Collision Preparation, Front and Rear Automatic Braking, Adaptive Cruise Control, Side Blind Zone Alert, Rear Vision Camera with Rear Cross Traffic Alert, Adaptive Forward Lighting, and Intellibeam headlamp ­control. To see the ATS development and results in action, click here and here.

Transport Mode The ATS is being shipped with Transport Mode, which reduces the electrical load on the battery when the vehicle is parked to prolong battery stand time, turned on. When Transport Mode is enabled, the red battery indicator light on the instrument cluster will be flashing and the Driver Information Center will display a Transport Mode On message. Turn off Transport Mode before delivering the vehicle to the customer. To turn off the Transport Mode: 1. Start the engine 2. Activate the hazard flashers 3. Press the brake pedal 4. Press and hold the Start/Stop button (if equipped) or turn the ignition key to the crank position for 15 seconds

Optional Brembo performance brakes

Thanks to Jean Hart

3

2013 Spark –

continued from page 1

The Spark has a manual drive belt tensioner as opposed to a self-adjusting one. The maintenance schedule calls for the drive belt tension to be inspected every 15,000 miles (24,000 km) and adjusted if tension is out of specification. This is a new procedure and a special tool is needed to complete the inspection and ­adjustment. Refer to Water Pump and ­Generator Belt Tension Inspection in the Service Information.

Code Set Indicator — The Code Set ­indicator displays a number when the ­status of the vehicle has changed and ­action may be needed to correct the condition. Following are the vehicle messages indicated by each number: Code Set

Vehicle Message

features, a smart phone link to Pandora and Stitcher, and vehicle settings.

Special Tools The following new tools have been released for the 2013 Chevrolet Spark: Tool #

Description

J-45747

Fuel Pump Lock Ring Remover/Installer

10

Brakes Overheated

15

Check High Mounted Brake Lamp

J-35667-3

Cylinder Pressure Adapter

16

Check Brake Lamps

Two transmissions are offered: a 5-speed manual transmission (RPO MX2) and a 4-speed automatic transmission (RPO MNG).

EN-50175

Crankshaft Locking Device

17

Headlamp Levering Malfunction

DT-47540

Wheel Hub Replacer Adapter

18

Left Low Beam Failure

DT-47541

20

Right Low Beam Failure

Wheel Bearing Remover Adapter

The 5-speed transmission assembly uses synchromesh on the five forward speeds. The reverse speed gear is driven by sliding the idler gear without synchronizer.

21

Check Left Position Lamp

DT-47542

22

Check Right Position Lamp

Wheel Bearing Installer Adapter

23

Reversing Lamp Failure

DT-47543

24

License Plate Lamp Failure

Wheel Bearing Installer Adapter

25

Left Front Turn Indicator Failure

J-21474-4

Hex Nut (long)

26

Left Rear Turn Indicator Failure

EN-46333

Engine Oil Pressure Gauge Adapter

27

Right Front Turn Indicator Failure

EN-50171

Installer-Crankshaft Rear Seal

28

Right Rear Turn Indicator Failure

EN-50172

56

Pressure Imbalance — Front

Installer – Crankshaft Front Seal

57

Pressure Imbalance — Rear

DT-50199

Installer – Bushing, Seal

58

Winter Tire Recognition

DT-50955

Oil Pump Seal Installer

65

Theft Attempted

CH-50164

Fuel Pressure Gauge Adapter

J-37105-C

Hub Puller

GE-50576

Acoustic Belt Tester

Transmissions

TIP: The transmission features a reverse gear mis-shift mechanism that prevents the lever from being shifted directly from 5th to reverse. When shifting to reverse, be sure to shift from the neutral position. The optional new four-speed automatic transmission is the Aisin AW 80-40LE Gen2, a compact, lightweight, electronically-controlled FF 4-speed automatic transaxle that employs a Ravigneaux-type planetary gear. The transmission has a lightweight aluminum case. When stopped on a hill, the Hill Start ­Assist feature prevents the vehicle from rolling before driving off. During the transition between when the driver releases the brake pedal and starts to accelerate, Hill Start Assist holds the brake pressure for two seconds to ensure the vehicle doesn’t roll. TIP: Hill Start Assist will not operate if ­StabiliTrak is disabled.

Unique Vehicle Characteristics Transmission Shifts — The automatic transmission on the 2013 Spark has an adapt mode to optimize shift quality. Transmission shifts may improve over time for the first few hundred miles. This is normal, as the transmission computer adjusts shift timing to optimize shift quality. Steering Wheel Controls — The Spark does not have backlit steering wheel ­controls. Do not replace any components. Folding Rear Seats — When raising the seatback, insert the safety belt latch plate into the hole on the side trim to ensure that the safety belt does not cross the seatback locking mechanism.



75

Service A/C System

81

Service Transmission

82

Change Engine Oil Soon

89

Service Vehicle Soon

95

Service Airbag

Engine Oil Life System — The Engine Oil Life System should be reset to 100% only following an oil change. To reset the system: 1. Press the MENU button to view remaining oil life. 2. Press the SET/CLR button until 100% is displayed. License Plate Installation — Be sure to attach the license plate with all four screws to prevent a rattle noise concern.

Infotainment Two infotainment systems — a base radio without a touch screen and an uplevel radio with a touch screen and Chevrolet MyLink — are offered on the 2013 Spark. The uplevel radio with a touch screen features a home page that features access to audio sources, pictures and video, phone 4

Pre-Delivery Inspection (PDI) Please be sure to review the PDI and CSDS forms published for this vehicle. There are several special inspection items highlighted for this vehicle. Additionally, the CSDS form has important customer education pieces that have been learned during our Captured Test Fleet process. Report any product issues via a Field Product ­Report. The Spark is shipped with Transport Mode enabled. This reduces the electrical load on the battery when the vehicle is parked to help prolong battery stand time. When the Transport Mode is enabled, the red battery indicator on the instrument cluster flashes. To enable/disable the Transport Mode, start the engine, activate the hazard flashers, press the brake pedal, then turn the ignition key to the crank position for 15 seconds. For additional information about the 2013 Spark, refer to #PI0760. Thanks to Ashmi Haria September 2012

Control Circuits and Test Lamps A control circuit (output) from an electronic control module provides a logically controlled (by operator or software) voltage potential to a component or another electronic control unit. This controlled v­ oltage potential can be anything from ­vehicle ground to vehicle system voltage or a ­manipulated (pulsed/amplitude/frequency) voltage output.

Test Lamps

The tool of choice to test a control circuit is a test lamp. When the control circuit is activated, the test lamp will load the circuit. If there is any resistance in the circuit the test lamp will not light.

Either test lamp works fine when testing a B+ (Battery Positive Voltage) or an ignition circuit. And up until the 2005 model year, both test lamps work fine testing any control circuit.

Do Not Use a Digital Multimeter

However, when testing a 2006 model year and newer control module control circuit, the newer high impedance test lamp (J-35616–210) must be used in place of the original low impedance test lamp (J-34142-B).

Why a Digital Multimeter (DMM) voltage reading is not used to test control circuits: • The DMM does not load the circuit being tested • The DMM’s high input impedance (typically 10M ohms) would mask any resistive circuit condition up to 1M ohm. • There are also times when the DMM voltage reading will not toggle or change states when commanding the control circuit on and off. This is caused by internal filtering in the control module, holding a charge (voltage) on the control circuit.

There have been two essential test lamps used over the years. • Original – Low impedance (20 Ω) test lamp J-34142-B • Newer – High impedance (200 Ω) test lamp J-35616–210

The issue is not with the test lamp but with the newer control modules. The original low impedance test lamp (J-34142-B) requires a high inrush current to fire off the bulb. When this happens, the control module shuts down the output driver. It’s not because the output driver can’t handle the temporary current spike (up to half an amp), but because the control module’s software is calibrated to turn off the output

driver at a very low current threshold and in a very short amount of time (typically, only a few milliseconds). Because the on-vehicle diagnostic validation is done using the newer test lamp (J-35616–210), it’s important for technicians to also use it when testing control circuits. The following note is being added to the Service Information diagnostic procedures where it has been identified that the newer test lamp (J-35616-210) must be used. Note: This step requires using a GM approved test lamp (J-35616–210) or equivalent. Failure to do so may result in a misdiagnosis of the control module. Using a low impedance test lamp can cause the control module to temporarily shut down and not light the test lamp. There are some control module outputs that will not work even with the newer test lamp (J-35616–210). In these cases, the control circuit test steps in the Service Information call out alternative diagnostic testing methods. Thanks to Dave Nowak

Disabling Transport Mode Transport Mode is a relatively new feature that reduces the ­electrical load on the battery when the vehicle is parked, which prolongs the battery stand time. This feature is used on vehicles being shipped outside of the United States and Canada, including 2010-2013 SRX, Camaro; 2011-2013 Cruze, Volt; 2012-2013 ­Verano, Orlando (Canada), Sonic; 2013 ATS and Spark. For the 2013 model year, some models will be shipped from the assembly plant with the Transport Mode on. When Transport Mode is enabled, the red battery ­indicator light on the instrument cluster will be flashing and the Driver Information Center (if equipped) will display ­a Transport Mode On message.

To turn the Transport Mode On/Off: 1. Start the engine 2. Activate the hazard flashers 3. Press the brake pedal 4. Press and hold the Start/Stop button (if equipped) or turn the ignition key to the crank position for 15 seconds 2010 Camaro Procedure To turn the Transport Mode On/Off: 1. Activate the hazard flashers 2. Turn and hold the ignition key in the crank position for 15 ­seconds. The Transport Mode Off message will be displayed. 2010 SRX Procedure

Transport Mode On message

When Transport Mode is on and the vehicle is not running, the Remote Keyless Entry (RKE) transmitter (key fob) is disabled and the content theft deterrent and exit lighting timers are reduced. When Transport Mode is on and the vehicle is running, there is no difference in operation. Transport Mode may be left on while the vehicle is in dealer ­inventory. The method to turn the mode off is the same as to turn the mode on. September 2012

2011-2013 Vehicle Procedure

To turn the Transport Mode On/Off: 1. Press the brake pedal 2. Push and hold the Start/Stop button for 15 seconds or until the Transport Mode Off message is displayed. For SRX, if Transport Mode is active, the RKE system will only work when the ignition is On or the BCM is awake (approximately for 20 minutes after the ignition is turned off). Thanks to James Parkhurst

5

Camaro 1LE and Dusk Special Edition Splitter Installation and Hood Graphic Warranty Splitter Installation

Two new looks for the 2013 Camaro are now available — the 1LE performance package and the Dusk Special Edition package.

Splitter ­installation on 1LE and Dusk Special Edition models is performed at the dealership. The package includes the splitter, three Use rivets at the front and rear of the splitter. brackets, fasteners and a template. The fascia is not removed from the vehicle during splitter installation.

Camaro 1LE

1LE Performance Package The 1LE performance package is offered on 1SS and 2SS coupe models with a Tremec TR6060-MM6 six-speed manual transmission. It features monotube rear dampers, larger front and rear stabilizer bars, a strut tower brace, 20-inch aluminum wheels, ZL1 wheel bearings, toe links and rear shock mounts and a ZL1 high-capacity fuel pump.

1LE package splitter

Visually, the 1LE package is distinguished by its matte black hood, front splitter and rear spoiler. The functional front splitter and rear spoiler contribute to the car’s on-track performance by helping to reduce aerodynamic lift at high speeds.

The procedure calls for installing the center bracket and the two corner brackets that support the splitter. The splitter slides onto the brackets and is secured with rivets at the rear and front of the splitter from below the vehicle. All 29 rivets must be installed for the splitter to remain properly ­secured to the vehicle. TIP: After splitter installation, the ground clearance of the Camaro is lower, similar to a Corvette Z06. Use caution when approaching curbs to avoid damage.

Dusk Special Edition The Dusk ­Special Edition package is   available on 2LT and 2SS models. It includes ­several unique exterior and ­interior features, including Blue Ray Metallic paint, a front splitter and ­rockers and 21-inch aluminum wheels.



The splitter installation instructions are included with the components in the vehicle. The instructions also can be found in the Service Information. Additional time has been added to PDI to account for splitter installation.

Center bracket and corner brackets installed.

Hood Graphic Warranty The 1LE package features a matte black hood graphic manufactured and warranted by 3M. To maintain the appearance of the graphic, hand washing or a touchless car wash is recommended. TIP: DO NOT polish or wax the graphic. Using polish, wax or any solvent-containing products will discolor the graphic. Owners are directed to contact their dealer for any warranty claims. The warranty form is included in the glove box. Dealers are to arrange an assessment of the claim with 3M. For additional information about vehicle graphics available on Chevrolet models, visit www.chevroletgraphics.com.

Secure the splitter from below the vehicle.

Thanks to Brad Thacher

6

September 2012

Fuel Gauge Inoperative

Dash Pad Appearance

The fuel gauge may be inoperative and stuck on empty (E) with a full tank of fuel on a 2012 Sonic. DTC P0461 (Fuel Level Sensor Performance) may be set in the ECM. After clearing the DTC, the gauge will begin to read correctly. Before replacing any parts, verify the condition is not being induced by the owner frequently topping off the fuel tank or overfilling the fuel tank past the automatic shut-off of the gasoline pump. The fuel tank level sensor is calibrated to a specific level in the fuel tank for the full mark. While driving the vehicle, the ECM performs a calculation based on mileage and fuel use. If the vehicle does not use the proper amount of fuel in the given mileage, DTC P0461 may set and cause the fuel gauge to become inoperative. Explain to owners the importance of not overfilling the fuel tank or refilling too frequently and advise that when the gas pump stops, the fuel tank is filled to its calibrated capacity. Thanks to Bryan Brunner

The dash pad area surrounding the radio center stack on some 20122013 Camaros may appear to be deformed or wrinkled. This area may be slightly to the left or right of the center stack, or directly above it. The trim piece does not appear like this when the car was new. The service replacement trim piece may be similar in appearance when it is removed from the packaging. Or if the trim piece has been replaced and exposed to direct sunlight for some time, the condition may reoccur. Engineering is aware of this parts issue and it is currently under investigation. DO NOT replace the trim pad at this time. Thanks to Matt Bierlein

West Coast Mirror Mounting Points 2007-2010 Silverado HD 2500/3500 and Sierra HD 2500/3500 ­ models equipped with SEO West Coast-style mirrors (RPO DG5, 9F7, 9N8) may experience sheet metal cracking around the mirror mounting points.

Accessory Remote Start Kits When installing an accessory remote start kit on a 2010-2013 Equinox or Terrain, the correct kit part number must be used. Since changes have been made to the Equinox and Terrain, there are three kit part numbers. MY 2010/11 Kit 20981996 – includes latch PN 20941413. This kit should only be used for model years 2010/11.

Cracked door sheet metal

Repair the sheet metal following body repair best practices and install the mirror bracket reinforcement kit, P/N 22760911, using the bolts, nuts, and nut-certs ­supplied.

MY 2012 Kit 22924978 – includes latch PN 22787039. This kit should only be used for model year 2012 and not for model year 2013. MY 2013 Kit 22957875 – includes latch PN 22909711. This is the only kit to date for model year 2013. This kit will be ready for sale in the near future. Prior to the required programming event, Techline Customer Support ­Center agents will verify the compatibility of the kit part number and model year.

Thanks to Scott Fibranz West Coast mirror installed with reinforcement kit

September 2012

Dash pad surrounding the radio center stack

7

Thanks to Ann Briedis

Fender and Fascia Alignment On some 2013 Malibus, the front fascia may not be completely snapped into the fender bracket. This condition may be caused by a disengaged standoff of the front fender alignment bracket and fascia.

2. Trim the standoff down almost flush with the black bracket. 3. Reassemble the fascia.

To align the fender and fascia:

Open the top notch of the fascia.

1. Open the top notch of the fascia to allow more clearance for the tab of the black bracket.

Sunroof Noise After opening the sunroof to the fully open or fully closed position, there may be a grinding or ratcheting noise and/or the motor may continue to run on some 2007-2010 Cobalt and G5 models. The sunroof motor and/or module (frame) may have been replaced with no change in the condition. In some cases, the condition may have been first noticed after a motor or sunroof replacement.

Standoff trimmed down almost flush with the bracket.

Thanks to Christopher Crumb

Trim the standoff

Service Suspension System Message A Service Suspension System message may display on the Driver Information Center of some 2010-2012 LaCrosse and 2011-2012 Regal models. DTCs B1370 sym 01, C0575, C0580, C0595, C0600, C0670, C0675 and/or C0870 with the symptom codes sym02, 05 or 0A may be set. It may be found that the harness to either the left front or right front acceleration sensors and/or damper actuators may be rubbing on the drive axle or any of the front suspension components. Circuits may also become open due to flexing of the harness at the knuckle attaching clip. In these cases, replace the front wheel speed sensor harness at X113 for the left side and X114 for the right side of the LaCrosse and X131 for the left side and X141 for the right side of the Regal. Route the new harness to prevent further contact from occurring. The new harness will be shorter as it no longer attaches at the steering knuckle. Thanks to Christopher Crumb

Verify the sunroof motor clip is present.

Remove the sunroof motor and inspect it for a missing clip as shown in the illustration. The clip may have fallen off the motor and needs to be reinstalled. Also inspect the gear on the motor and the cables on the sunroof frame for damage or wear. Replace the a ­ ffected component if excessive wear is found and reinstall the clip. Refer to the ­Sunroof Motor/Actuator Replacement and Sunroof Actuator Motor Synchronization in the appropriate Service Information for ­removal and installation of the motor.

A/C Blows Warm Air On some 2013 Sparks, the air conditioning may only blow warm air or may get slightly cooler during acceleration. During diagnosis, the A/C pressures may be erratic and the low side may be as low as 0 psi to 30 inches of ­vacuum. Inspect for metal contamination in the A/C system by removing the plug from the bottom of the receiver/drier and checking for debris in the filter assembly. Also check for debris or contamination in the thermal expansion valve (TXV). If contamination is found, perform repairs as outlined in the appropriate Service Information and verify repairs. Thanks to Bryan Brunner

Thanks to Ernest Haller



8

September 2012

Transmission Information Summary GM TechLink is published for all GM retail technicians and service consultants to provide timely information to help increase know­ ledge about GM products and improve the performance of the service department. Publisher:

Diana Sancya GM Customer Care and Aftersales / [email protected] Editor:

Lisa G. Scott GM Customer Care and Aftersales / [email protected] Technical Editor:

Mark Spencer / [email protected] Production Manager:

Marie Meredith Desktop Publishing:

5by5 Design LLC / [email protected] FAX number:

3

1-248-729-4704 Write to:

TechLink PO Box 500 Troy, MI 48007-0500



GM GlobalConnect

September 2012

Prior to beginning any repairs, it’s critical to always follow Strategy-Based Diagnostics and check the appropriate Service Information for any bulletins or PIs that may apply. In addition, go to www.gmtraining.com to learn more about the transmission train­ ing classes that are available in your area and online. In Canada, refer to the course ­catalog at www.gmprocanada.com. Thanks to Mike Johnston

HVAC Blower Fan Operates on High Speed Only The HVAC blower motor may only operate on high speed and be inoperative on all other speeds on a 2012 Sonic. This condi­ tion may be noticed after the vehicle was jump-started. The thermal fuse in the blower motor resistor may be open. Follow the diagnostics in the appropriate Service Information and use the following ­values to determine if the blower resistor thermal fuse is open.

C with A = 1.34 Ohm +/-15%

:

General Motors service tips are intended for use by professional ­technicians, not a “do-it-yourselfer.” T­hey are written to inform those ­technicians of conditions that may occur on some vehicles, or to provide­information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the information applies to your vehicle or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information. Inclusion in this publication is not ­necessarily an endorsement of the individual or the company. Copyright© 2012 General Motors All rights reserved.

The transmission information summary is attached to this issue of TechLink. It can be printed for easy reference.

Terminal C is the common, so the circuit is:

*

GM TechLink on the Web:

A summary of important transmission-related bulletins and Preliminary Information (PI) has been recently released to help build awareness of the latest transmission information available. The list provides a convenient resource for transmission techni­ cians when performing transmission repairs.

C with B = 0.45 Ohm +/-15% C with D = 0.012 Ohm +/-15% C with E = 2.60 Ohm +/-15%

fuse is open and the resistor needs to be replaced. If correct resistance values are seen, then the resistor is OK for use and further diagnostics will be required to iso­ late the source of the condition. If the thermal fuse is found to be open and there are no other faults found that would cause the thermal fuse to open, the condi­ tion may have been caused by leaving the blower motor on while performing a jump start. Instruct owners to follow the Owner Manual instructions when performing a jump start. TIP: Turn off or unplug all accessories on either vehicle during the jump starting ­procedure to prevent possible damage to the accessories. Thanks to Bryan Brunner

Using a DVOM, place it on the ohms set­ ting. If the resistance values are “0,” the

Steering Wheel Air Bag Shorting Bar On some 2012 Cruze and Verano models built before June 21, 2012, the Air Bag/ SIR light may be illuminated and DTCs B0012 and/or B0013, symptom byte 0E, may be stored in the Inflatable Re­ straint Sensing and Diagnostic Module (SDM). This condition may be caused by a ­damaged shorting bar in the steering wheel inflatable restraint module (steer­ ing wheel air bag). This condition often is intermittent. ­Replacing the X85 Steering Wheel Air

9

Bag Coil will not resolve the issue. Wiggling the connectors at the F107 Steering Wheel Inflator Module may or may not cause the DTCs to set. Follow the normal diagnostic proce­ dures in the Service Information for these DTCs. If normal diagnosis does not ­identify the cause of the condition, replace the steering wheel inflatable re­ straint module (steering wheel air bag). Thanks to Christopher Hightower

Car Issues – Fix It Right the First Time Model Year(s)

Vehicle Line(s)/Condition

Do This

Reference Information/Bulletin

Don’t Do This

2012

Cruze – Cruze all-weather floor mat retainer broken

Replace floor mat retainer.

Replace floor mats.

PI0769

2013

ATS, Malibu – Engine Exchange Program for 2013 model year (GMNA Only)

Exchange engine assembly, refer to bulletin for the list of parts that can be replaced.

Disassemble major components.

PI0768A

2009-2011

Terrain, HHR, Equinox, Cruze, Camaro, SRX, CTS-V Sport Wagon, CTS-V Coupe, CTS-V, CTS Coupe, CTS Sport Wagon, CTS, Regal, LaCrosse – Clickingtype noise from front or rear of vehicle when shifting between Reverse and Drive or on hard acceleration

Add washers to front axle.

Replace front axle.

09-04-95-001D

2013

Spark – Spark New Model Features and Service Guide

Take vehicle out of Transport Mode as part of PDI per Bulletin 11-08-49-001.

Leave the 12V battery light flashing.

PI0760

2013

Spark – Information on clicking/ticking sound/noise heard inside vehicle when engine is warm

Verify noise is as described in bulletin.

Do any repairs for this noise. It is considered normal.

PI0772

2011-2012

Cruze – Coolant leak at water pump

Replace the water pump, gasket and thermostat.

Replace the water pump bolts. Leak at the bolts is fixed with new gasket.

PI0762A

2009-2013

Terrain, Outlook, Acadia, Impala, Equinox, Camaro, Traverse, Terrain, SRX, STS, CTS, LaCrosse – Information on clicking/ticking sound/noise heard during cold start

Inform the customer that this is normal operation of the high pressure fuel pump and injectors.

Replace high pressure injection pump for ticking noise.

07-06-04-025H

2010-2013

XTS, Spark, Sonic, Orlando, VOLT, Cruze, Camaro, SRX, Verano, Regal – Transport Mode On message displayed in Driver Information Center and/or battery light is flashing

Verify involved vehicles do not have Transport Mode On when checking for a complaint of key fob inoperative.

Replace key fob or receivers for inoperative condition if Transport Mode is active.

11-08-49-001B

Truck Issues – Fix It Right the First Time Model Year(s)

Vehicle Line(s)/Condition

Do This

Don’t Do This

Reference Information/Bulletin

2007-2011

Escalade, Escalade EXT, Escalade ESV, Avalanche, Suburban, Tahoe, Yukon, Yukon XL – Windshield wiper chatter/noise and/or streaking

Clean or replace blade with new design P/N 22793882.

Use P/N 15214346.

11-08-43-001

2010-2011

Terrain, Equinox – Outboard side(s) of rear seat cushion trim cover loose/detached

Repair the rear seat cover with clips from the recently released seat retainer kit.

Replace the rear seat cover.

PI0365A

2011-2013

Terrain, Equinox – Replacement procedure for carpeted floor mat retainers

Repair the front carpeted floor mat with parts from the new floor mat retainer kit.

Replace the front carpeted floor mats.

PI0763

2012-2013

Terrain, Equinox – Erratic or insufficient cooling when A/C compressor is On

Reposition the A/C compressor and re-torque the mounting bolts.

Replace the A/C compressor.

PI0767

2012

Sierra, Yukon XL, Yukon, Tahoe, Suburban, Silverado, Escalade EXT, Escalade ESV, Escalade, Avalanche – Front passenger seat rattle when unoccupied - lumbar guide rods contacting the upper seat back frame

Install zip tie to guide rods.

Replace any seat components.

PI0761

2007-2013

Suburban, Yukon XL – Information on normal condition of suspension light contact points - pitman arm, frame, lower control arm, caliper bracket bolt, steering knuckle

Confirm these are normal contact points per bulletin.

Modify any components or attempt to make any repairs to correct the light contact condition.

PI0764

2006-2012

Express, Savana – Front shock absorber tower separating from frame

Add reinforcement.

Replace the frame.

PI0489A

10212.09D Emerging Issues

Service Know-How

September 13, 2012

To view Emerging Issues seminars: Log in to www.gmtraining.com, select Service Know-How/ TECHAssist from the menu, select Emerging Issues, and then Searchable Streaming Video to choose the current Emerging Issues seminar or past programs. Customer Care and Aftersales



10

September 2012

4T65

4T45

4L60

Allison

All

Transmission

Bulletin #

06-07-30-023E 08-07-30-002A

2001 - 2008 All

01-07-30-032E

1997 - 2009 All

2001 - 2011 All

PIP4651

08-07-30-034

PIP4416A

08-07-30-018

PIP5009E

2007 - 2009 - All

2008 - All

2007 - 2008 - All

2012 - All

01-07-30-042G

PIP5012B

2012 Silverado, Sierra

2012 & Prior - All

PIP4994

2011 - 2012 Silverado, Sierra

12-07-30-001

02-07-30-029R

02-07-30-052H

PIP4560L

Models

2011 - 2013 Silverado, Sierra

2013 & Prior - All

2011 & Prior - All

TECHNICAL ASSISTANCE 877-446-8227

Subject

Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover (Channel Plate) Gasket) 1-2 Shift Shudder at Light to Moderate Acceleration (Replace 2nd Clutch Plates and Sealing Rings) Information On 4T65-E MN7, M15 and M76 Front Wheel Drive Automatic Transmission Valve Body Reconditioning

Soft Shifts, Erratic Shifts, DTC P1811

No Reverse, Binds in Reverse, No Movement, DTC P0756

Intermittent Stall When Coming To A Stop or Engine Chuggles prior to a Stop

Intermittent Service Engine Soon (SES) Lamp Illumination During Light Throttle Operation, DTC P0843 (Inspect for Torn Torque Converter O-Ring)

Page 1

Information on 2-3 Upshift or 3-2 Downshift Clunk Noise Replace The Internal Transmission Wiring Harness And TCC Enable Solenoid Anytime The Transmission Is In For Service Malfunction Indicator Lamp (MIL) With DTC P0741 Set

Check Engine Light and a Condition of No Reverse a Neutral or a High Gear Start with Codes P0761 and P0873 Clunk Noise or Harsh 6-5 Downshift at 50 - 70 MPH Harsh 4-3 Downshift or Harsh 3-2 Downshift at Lower Speeds

Allison LCT1000 TAC TCM Part Restriction

Automatic Transmission Oil Cooler Flow Test Essential Tool J-45096 TransFlow® Product Quality Center (PQC) Information for Engine, Transmission and Transfer Case Assembly Replacement Authorization Request Process Information for Dealers Not Required to Contact Product Quality Center (PQC) for Transmission Replacement Authorization

TRAINING Transmission Training Classes available in www.gmtraining.com

It is important to follow strategy-based diagnosis and check eSI for the latest bulletins and PIs. This list is also published in TechLink, September 2012. TechLink can be accessed through the eSI home page.

The listing below is accurate as of August 31, 2012 and will change with time.

IMPORTANT BULLETINS AND PIs FOR TRANSMISSION TECHNICIANS

Transfer Cases

Manual Transmissions

6T70

6T40

6L80

4T80

Transmission

PIP4554

PI0075 PI0324 PI0376

2007 - 2012 All RWD w/6L46/6L50

2009 - 2012 All

2011 - 2013 All

2011 All

2007-2013 Silverado, Sierra w/NQG 2012 & Prior All

2007-2012 FST w/NQF, NQG, NQH or NP0

Subject

Manual Transmission Operating Characteristics Fluid Leak after Clutch Actuator Replacement Transfer Case Identification First Design vs. Second Design Revised Transfer Case Front Output Shaft Seal and Slinger Installation Tool Transfer Case Output Shaft Slinger and Seal Revision Transmission Fluid Leak From Transfer Case Adapter To Transmission NQG 4WD Models With Noise Vibration On Dry Pavement 4WD Models With Noise, Vibration On Dry Pavement

12-04-21-001A PI0396 PI0615 PIP4975 PIP4885E PIP3300E

No Reverse, 3rd or 5th, Check Engine Light Illuminated, DTC P0776 (Replace 3-5 Reverse Clutch Plate (Waved) 3-5-R Wave Plate - Emerging Issues Video On Demand, February, 2011 www.gmtraining.com Possible No Drive And Or Default 5th Gear And DTC P2723 May Be Set After A Transmission Repair Malfunction Indicator Lamp (MIL) Illuminated, DTC P0741, Transmission Slips after a Transmission Repair (Inspect Upper Channel Plate) Malfunction Indicator Lamp (MIL) Illuminated, DTC P0752, P0872, P0877 and/or P0989 Set Diagnostic Information for Transmission Overtemperature — DTCs P0218 or P0634

Malfunction Indicator Lamp (MIL) Illuminated, DTC P2714, Slip or Flare when Shifting in 2nd or 6th Gear (Inspect Channel Plate and Spacer Plate) Information on 6T30/6T40/6T45/6T50 Automatic Transmission Product Updates DTC P0713, P06AE Set After Replacement of Control Solenoid Valve (TEHCM) Diagnostic Tips for DTC P0776, Slips in or No Reverse, Third, Fifth Harsh 2-3 Shift

No Forward, No Reverse, No Crank, Engine Cranks But Will Not Start (Inspect Transmission Pump)

Automatic Transmission Fluid (ATF) Appears Dark

Clunk Noise After Shifting From Reverse To Drive Or Drive To Reverse And Then Accelerating

Slips in Reverse or Third, Delayed Reverse or Drive Engagement, DTC P0776, P2715, P2723, Harsh 2-3 Shifts (Inspect 1-2-3-4 / 3-5-R Housing and Pump Seal Rings) Diagnostic Information for Transmission No Forward, No Reverse, Slips, Cracked/Split Fluid Filter Tick or Rattle Noise from Front of Dash, Transmission Filler Tube Cracked or Broken (Inspect Filler Tube, Replace Tube as Necessary) Transmission Over Temperature, Malfunction Indicator Lamp (MIL) Illuminated, DTC U0101 Set (Inspect Transmission Cooler Lines) Shudder Feel While Driving in 40-50 MPH Range Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear

Transmission Final Drive Gear Whine Noise at Low Speeds Between 24-48 km/h (15-30 mph)

Page 2

Transmission Moan/Whine Noise from Final Drive Carrier Assembly at Low Speeds 24-48 km/h (15-30 mph)

Left Front Axle Seal Leak, Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part) Tick or Buzz Type Noise from Center of Instrument Panel Area When TCC is Applied (Install Transmission Range Selector (Shift) Cable Dampener)

03-07-29-004H PI0421B

PI0448 PI0475

2007 - 2011 All 2007 - 2012 All

2013 & Prior All 2011-2012 Cruze

PI0380

10211.02D PIP4952

09-07-30-012

2008 - 2010 All

2007 - 2009 All

2011 Equinox, Terrain

PI0604B PI0667 PI0670 PI0724

PI0700A PI0773

2012 CTS, Camaro w/V6 Engine 2006-2012 All

2012 All

PI0531

PI0522

2011 - 2012 Silverado, Sierra w/6L90

PI0488

2007-2011 Full Size Trucks

PI0331A

2010 - 2011 Lucerne, DTS

2010-2012 All

10-07-30-006B

2007 - 2010 Lucerne, DTS

09-07-30-004

08-07-30-043A

2007 - 2009 DTS

2006 - 2009 All

08-07-30-009B

Bulletin #

2001 - 2008 All

Models

IMPORTANT BULLETINS AND PIs FOR TRANSMISSION TECHNICIANS