The Pre-Delivery Inspection (PDI) of the new 2020 Corvette Stingray includes several special inspections and installation procedures. Be sure to complete all items on the PDI form. Here are a […]

After replacing and programming the B174W Front View Camera Module (Fig. 30) on the 2020 CT5, the learn procedure using GDS2 may not be able to be started. Any of […]

After installing an accessory tonneau cover on some 2019-2020 Silverado 1500 and Sierra 1500 models and 2020 Silverado 2500HD/3500 HD and Sierra 2500HD/3500HD models, the endgate may fail to auto […]

Some 2019-2020 Colorado and Canyon models equipped with the 6L50 automatic transmission (RPO MYB) may have an intermittent slip condition or may not engage when shifted into Reverse. The intermittent […]

The latest update to the GDS2 core software (Version 21.3.06900) in TIS2Web recently released includes changes for Diagnostics over Internet Protocol (DoIP) diagnostics, new messaging for MDI 2/MDI usage on […]

The all-new 2020 Buick Encore GX (Fig. 1) is a crossover sport utility vehicle designed and manufactured globally and sold worldwide. It slots in the Buick lineup between the smaller […]

The all-new 2020 Buick Encore GX (Fig. 10) features two new, fuel efficient, turbocharged 3-cylinder engines mated to either a continuously variable transmission (CVT) or a Hydra-Matic 9-speed automatic transmission. […]

GM requires that technicians document the causal Diagnostic Trouble Code (DTC) that leads them to a vehicle warranty repair. The DTC is to be documented in the “Cause Comments” section […]

Techline Connect (TLC) is GM’s latest tool to bring diagnostic information and vehicle data to technicians in one easy-to-use application. With all the information that is available through TLC, the […]

New updated software for the GE-50300-A R1234yf A/C Machine (Fig. 25) is now available to be downloaded through the Special Tools and Software Updates app in GM GlobalConnect. The software […]

A Service Park Assist message may be displayed on the Driver Information Center or the power liftgate may not be operating on some 2017-2020 Acadia and 2019-2020 Blazer models. The […]

The 2020 Sierra 2500HD/3500HD may have a whistling sound coming from the front of the vehicle while driving. (Fig. 29) The intermittent sound is most commonly heard when the vehicle […]

GM ToolNet, the new asset management application to help GM dealerships in organizing and managing their special service tools inventory, will be launched April 14, 2020. Developed by Bosch Corporation, […]

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 […]