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 […]
For the 2023 model year, there are two possible exhaust muffler designs available on Escalade models. (Fig. 6) The muffler design was changed later in the model year with a […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar looks at updating the Diagnostic and Charge Battery Station […]
There may be a whine sound heard under light acceleration or when coasting on some 2023-2024 Colorado and Canyon models equipped with the 8L45 or 8L80 8-speed automatic transmission (RPO […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the March GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
After a wheel alignment, the Super Cruise system (RPO UKL) – Lane Active Safety-Keep Assist, Hands-Free Lane Following (Entire Speed Range) (Fig. 9) – may not center the vehicle properly […]
A Service All Wheel Drive message may be displayed on the Driver Information Center in some 2020-2023 Encore GX and 2021-2023 Trailblazer models equipped with the 1.3L engine (RPO L3T) […]
Some 2020-2024 Silverado 1500, Silverado 2500HD/3500HD, Sierra 1500, Sierra 2500HD/3500HD; 2021-2024 Tahoe, Suburban, Yukon and Escalade models equipped with the 3.0L diesel engine (RPO LZ0, LM2) or 6.6L diesel engine […]
The GM Field Service Engineer (FSE) Technician Recognition Awards (U.S.) celebrate the skill and dedication of dealership technicians who have recently worked with FSEs on challenging repairs. Technicians at GM […]
November Service Newsletter from the Experts at GM TAC
Questions About Labor Times?
Stay Updated — IOK Radio Software and Connection Conditions
Key Fob Synchronization
CX Connect Features Updated in Latest Release
New SAVI Manager Release Updates USB Driver
Do Not Swap Control Modules
GM Service Know-How Emerging IssuesDCA-8000
Troubleshooting
Guide
TAC Newsletter December 2025
TAC Newsletter November 2025
Techline Connect Tips November 2024
CX Connect Case Creation Help + Tips and Tricks
All buttons on one key fob (Remote Keyless Entry transmitter) may be inoperative on some 2023-2026 Escalade, LYRIQ, Corvette, Silverado 1500, Silverado 2500HD/3500HD, Tahoe, Suburban, Sierra 1500, Sierra 2500HD/3500HD, Yukon; […]
To avoid wait times for technical support in the dealership, prior to contacting the GM Technical Assistance Center (TAC) and Techline Customer Support Center (TCSC) as well as and other […]
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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