Several features, including Forward Collision Alert and Lane Keep Assist, may not operate properly on 2018-2024 Equinox and Terrain models (equipped with RPOs UHX, UHY, UEU, UE4, UKC, UKJ) after […]
The green, blue and red charging status indicators (Fig. 2) on new GM electric vehicles (EVs), including the 2023-2024 LYRIQ; 2024 Blazer EV, Equinox EV and Silverado EV, can quickly […]
An engine misfire condition and an illuminated Check Engine MIL may be found on some 2024 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models equipped with the 6.6L V8 engine (RPO L8T). […]
Due to a recent update of the Google Maps application, an issue may arise in which the infotainment system (RPO IOK, IVD, IVE) has a persistent “Offline” icon in maps […]
The infotainment system (RPO IOK, IOR, IOS, IOT, IOU, IOV, IVA, IVD, IVE) on some 2023-2024 models (Fig. 16) may need to be reset if a black screen appears or […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar reviews the preparation guidelines for Hybrid/EV battery shipping. (Fig. […]
The GM Technical Assistance Center (TAC) is inviting all technicians who have recently contacted a TAC Action Center to take a brief satisfaction survey. The results of the survey will […]
The new 2024 Corvette E-Ray pairs two separate propulsion systems to provide naturally aspirated V8 power with electrified responsiveness powered by eAWD (All-Wheel Drive), delivering all-weather capabilities with impressive performance. […]
The 2024 Corvette E-Ray uses two lithium-ion batteries — one for high-voltage functions with the front electric axle and one for low-voltage operations that replaces the traditional lead-acid 12V battery. […]
There may be a battery draw condition due false wake-up requests to the Body Control Module (BCM) on some 2022-2024 Tahoe, Suburban, Yukon and Escalade models equipped with the hands-free […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the April GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
A new GM Tools and Equipment program has recently been announced by GM that aims to quickly deliver the essential tools dealerships need while providing a world-class customer service experience. […]
A damaged valve stem is a common cause of a tire leak. The valve stem may have been damaged by normal wear and tear from road conditions or impacts or […]
The Midtronics Diagnostic Charger DCA-8000P is now an approved battery warranty tool in the GM Dealer Equipment and Tool program. The DCA-8000P (Fig. 4) is a state-of-the-art battery charger and […]
Lunch with Your FSEs April Meeting
TCSC Top Issues This Week
New TAC Phone Prompts Help Speed Support to Dealerships
Intermittent Front Lighting Operation
Loss of Reverse/Forward Grid Lines in Camera View
Inoperative Heated and Ventilated Front Seats
Brake Pad Wear Sensor Contact with Rear Half Shaft
February Service Newsletter from the Experts at GM TAC
The 2027 Chevrolet Bolt Makes Its Comeback
2027 Chevrolet Bolt TAC Action Center
NACS and CCS1 Charging Adapter Options
February CX Connect Release Provides Multiple App Updates
GM Service Know-How Emerging IssuesDCA-8000
Troubleshooting
Guide
TAC Newsletter March 2026
TAC Newsletter February 2026
Techline Connect Tips November 2024
CX Connect Case Creation Help + Tips and Tricks
Safety Arc-Rated (AR) Personal Protection Equipment (PPE) is recommended to be used by technicians when servicing some high-voltage battery packs under certain scenarios on GM electric vehicles. The PPE that […]
The latest update to the MDI 2 Manager in Techline Connect (version 9.1.2752.177) includes support for new MDI 2 wireless dongles. The new wireless dongles are similar to the previously […]
Take a detailed look at a wide range of innovative features and advanced systems found on GM vehicles to gain a better understanding of proper operation. Each short video reviews how a feature works, highlights operating tips and shows ways to customize settings, if applicable.
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