Wiper Blade Performance Diagnosis
Streaking is the most common warranty condition found with wiper blades on GM models. However, worn blades are not the only cause of streaking. Several other issues that can affect […]
Archive for August, 2024
8-Speed Transmission Noise Concerns
There may be a noise concern on some 2015-2019 Corvette; 2015-2020 Escalade, Yukon; 2015-2024 Silverado 1500, Sierra 1500; 2016-2018 CT6; 2016-2019 ATS, CTS; 2016-2023 Camaro; 2017-2023 Colorado, Canyon; 2017-2024 Express, […]
Inoperative IntelliBeam Auto High-Beam Headlamps
The functionality of the IntelliBeam automatic high-beam headlamps may be inoperative on some 2024-2025 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks. (Fig. 17) The side blind zone and side object detection […]
Wheel Drive Shaft Retention Snap Ring Design Change
There has been a design change to the wheel drive shaft retention snap ring on 2024-2025 Silverado EV, Sierra EV, HUMMER EV Pickup, HUMMER EV SUV; and 2025 BrightDrop 600. […]
August Service Newsletter from the Experts at GM TAC
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the August GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
New Vehicle-Wide Programming for Software Updates
With its enhanced capacity and ability to manage technology complexity, the GM Vehicle Intelligence Platform (VIP) electrical architecture offers the capability of managing over 100 electronic control modules. When necessary, […]
Front Bumper Bracket May Affect Active Grille Shutter Operation
Some 2024 Acadia, Traverse; and 2025 Enclave models may have an active grille shutter malfunction along with DTC P059F (Active Grille Air Shutter 1 Performance) set in the Engine Control […]
GM Service Know-How Emerging Issues
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar highlights adjustments to the HUMMER EV Sky Panel. (Fig. […]
Print Edition
Previous Articles
Prelube Procedure Required Before Drive Belt Installation During Engine Replacement
New GM STC Program Guide Goes Digital, Offers Easy Navigation to the Latest Training Information
Identify Parts Before Shipping to the WPC
Follow the Links – Check Service Information for All the Details on Every Repair
Performing the Long Range Radar Sensor Module Learn Procedure
Enclave Front License Plate Bracket Installation
June Service Newsletter from the Experts at GM TAC
SPS Events Soon to Require Hard-Wired Connection to MDI 2
Techline Connect App Resources Now on Global Connect
Windows 10 Support Ending Soon
Multiple DTCs Set Due to Wiring Harness Damage
GM Service Know-How Emerging Issues
DCA-8000
Troubleshooting
Guide
TAC Newsletter August 2025
TAC Newsletter July 2025
Techline Connect Tips November 2024
CX Connect Case Creation Help + Tips and Tricks
