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 […]
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 […]
Blank Screen Display Diagnostic Tips
Make a Reservation to Meet with Your FSEs in 2026
GM Introduces Digital Key, Offering Convenience and Easy Access
Key Cards Put Vehicle Access in Your Wallet
New 2026 Corvette ZR1X Delivers Twin-Turbo AWD Hypercar Performance
MDI 2 Manager Update Adds Support for New Wireless Dongles
Latest CX Connect Update Delivers Streamlined Operation and Enhanced Search Functions
GM Service Know-How Emerging Issues
Engine Control Module Diagnosis and ECM Part Restriction
Front Brake Caliper Sound and Uneven Pad Wear
3rd-Row Seat Switch Diagnosis
Check Ground Terminals for Transmission Fluid Temperature Sensor Circuit Condition
December Service Newsletter from the Experts at GM TAC
FSE Technician Recognition Awards – 4th Quarter 2025
Enroll Today in the 2026 Technician Excellence Program
Verify Vehicle Settings After Rocker Panel Ground Lamps Installation
Heated Steering Wheel Replacement
Door Panel Wood Trim Condition
GM Service Know-How Emerging IssuesDCA-8000
Troubleshooting
Guide
TAC Newsletter January 2026
TAC Newsletter December 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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