The November Techline Connect (TLC) software update introduces “Direct Launch” capability to simplify any service programming related to Field Actions. Direct Launch functionality is designed to improve first time quality […]

A poor splice connection in the engine wiring harness on some 2020-2021 Trailblazer and Encore GX models equipped with the 1.2L engine (RPO LIH) may result in an illuminated Check […]

Wrapper, or MDI tool selection window. Since the MDI no longer receives updates to its core software, changes are being made to the MDI Manager and the MDI tool selection […]

GM has recently released new Dealer Infrastructure & Security Guidelines (DISG) for 2022. The new guidelines outline the dealership technology needed to ensure reliable data communications for all dealers, including […]

The driver’s outside rearview mirror on some 2020-2022 Corvettes may have poor operation and appearance, including numerous lines shown in the mirror and a dim reflection at all times. (Fig. […]

automatic transmission (RPO MRG) may have an illuminated Check Engine MIL and/or the engine stop/start feature may be inoperative. DTC P2796 (Auxiliary Transmission Fluid Pump Control Circuit) and DTC P2798 (Auxiliary […]

When driving in extreme cold weather conditions (0°F or less / -18°C or less), a winter grille cover should be installed on 2019-2022 XT4 models equipped with the 2.0L turbo […]

The Lane Keep Assist and Forward Collison Alert systems may become inoperative on some 2020-2022 Encore GX and 2021-2022 Trailblazer models. While driving, the Lane Keep Assist and vehicle detection […]

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 […]