New Duramax Diesel 3.0L 6-Cylinder Engine Powers Up Silverado 1500, Sierra 1500

New Duramax Diesel 3.0L 6-Cylinder Engine Powers Up Silverado 1500, Sierra 1500

The all-new Duramax® Diesel 3.0L inline 6-cylinder turbocharged engine (RPO LM2) delivers plenty of power — producing 282 horsepower and 450 lb.-ft. of torque — along with impressive fuel economy […]

September 13, 2019
Diesel Exhaust Brake Operation

Diesel Exhaust Brake Operation

The diesel exhaust brake available on 2020 Silverado and Sierra light-duty and HD models equipped with the 3.0L Duramax diesel engine (RPO LM2) or 6.6L Duramax diesel engine (RPO L5P) […]

September 13, 2019
2020 Camaro Model Updates

2020 Camaro Model Updates

A new LT1 V8 performance model (RPO 1LZ) leads the changes for the 2020 Camaro lineup along with a new available 10-speed automatic transmission on V6 models. Here’s a look […]

September 13, 2019
Possible Engine Oil Contamination Conditions

Possible Engine Oil Contamination Conditions

Some 2019 Enclave and Traverse models may have an illuminated Check Engine MIL along with an engine ticking noise, coolant loss or very dark colored oil in 3.6L V6 engines […]

September 13, 2019
Low Oil Pressure Conditions

Low Oil Pressure Conditions

There may be no or low oil pressure along with DTC P06DD (Engine Oil Pressure Control Solenoid Valve Performance) set on some 2014-2019 Silverado LD, Sierra LD; 2015-2019 Escalade, Tahoe, […]

September 13, 2019
Multiple DIC Messages and Loss of Low Speed LAN Communication

Multiple DIC Messages and Loss of Low Speed LAN Communication

Some 2016-2019 Volt models may experience a no start condition, multiple Driver Information Center (DIC) messages, and/or a loss of low speed Local Area Network (LAN) communication. If any of […]

September 13, 2019
Auxiliary Transmission Fluid Pump Performance

Auxiliary Transmission Fluid Pump Performance

Some 2019 Malibu models equipped with the VT40 CVT automatic transmission (RPO MRG) may have an illuminated Check Engine lamp and the Automatic Engine Stop/Start system is not working. DTC […]

September 13, 2019
Updated Engine Oil Capacities Chart

Updated Engine Oil Capacities Chart

An updated Engine Oil Capacities chart for the 2019-2020 model years is now available under the Reference Chart menu. The chart includes engine, RPO, specifications (liters and quarts) and oil […]

September 13, 2019
GM Service Know-How

GM Service Know-How

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]

September 13, 2019
New Camaro ZL1 eLSD Drag Race Calibration Available

New Camaro ZL1 eLSD Drag Race Calibration Available

A new performance calibration is available from Chevrolet Performance for 2017-2019 Camaro ZL1 models (in Canada, 2019 Camaro ZL1 models only) that enhance launch capabilities on the drag strip. (Fig. […]

August 29, 2019
Get Instant Field Action Notifications with the Certified Service Mobile Toolbox App

Get Instant Field Action Notifications with the Certified Service Mobile Toolbox App

The Certified Service Mobile Toolbox (CSMT) offers easy, convenient access to the Field Product Reporter app, Pre-Repair Authorization app and other service applications for GM dealerships (U.S.). But did you […]

August 29, 2019
Global In-Vehicle Technology Library Link in SI Provides Access to New Model Information

Global In-Vehicle Technology Library Link in SI Provides Access to New Model Information

The Global In-Vehicle Technology Library offers a variety of information covering GM’s infotainment systems, from capabilities by vehicle to operating features of specific systems. The materials and videos available in […]

August 29, 2019
Changing the MDI 2 Selection in TIS2Web

Changing the MDI 2 Selection in TIS2Web

GM has recently updated the Service Programming System (SPS) with a new method of selecting a J2534 tool in TIS2Web. A J2534 tool (MDI, MDI 2, or other J2534 device) […]

August 29, 2019
Rear Seat Bolt Tightening Sequence

Rear Seat Bolt Tightening Sequence

The 2nd-row seat mounting bolt tightening sequence on 2017-2020 Acadia, XT5; 2018-2020 Enclave, Traverse; 2019 Blazer; and 2020 XT6 models may not be clear to all technicians in the Service […]

August 29, 2019
Lack of A/C Performance in High Ambient Temperatures

Lack of A/C Performance in High Ambient Temperatures

The air conditioning system may be blowing warm air on some 2017-2019 Colorado and Canyon models. In some cases, the A/C evaporator may be freezing up. There also may be […]

August 29, 2019
Multiple Electrical Conditions, Illuminated Instrument Cluster Warning Lamps, and DIC Messages

Multiple Electrical Conditions, Illuminated Instrument Cluster Warning Lamps, and DIC Messages

There may be a number of electrical conditions present on some 2018-2020 Equinox and Terrain models. The conditions may include illuminated warning lamps on the instrument cluster, a Service Transmission […]

August 29, 2019