Certified Class “0” insulating gloves rated at 1000V with leather protectors (Fig. 6) provide an insulative barrier between an electrical point and the skin of an individual, and are required […]
The updated TechLink Engine Oil Capacities chart for the 2024 model year is now available under the Reference Charts menu. The chart includes engine, RPO, specifications (liters and quarts), oil […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the September GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
The all-new 2024 Equinox EV (Fig. 1) focuses on safety, space, performance and style — all while offering the value attributes that the Equinox nameplate is known for. Fig. […]
A new software update for the MDI 2 Manager is being rolled out to GM dealerships (U.S.) The staggered rollout of the new MDI 2 Manager software (version 9.1.2202.128) includes […]
The 2024-2025 Corvette E-Ray features an independent cooling system to cool the high-voltage battery. If air gathers and gets trapped in the hoses around the Hybrid/Electric Vehicle Battery Coolant Pump […]
A slight knocking or thud sound may be heard coming from the steering column area when driving some 2014-2025 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks over rough roads or potholes. […]
Automotive technology changes quickly, which, for dealership technicians, requires dedication as well as training to stay up to date on the latest changes in today’s advanced vehicles. A key to […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar covers Vehicle-Wide Programming. (Fig. 26) Fig. 26 […]
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 […]
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, […]
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 […]
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. […]
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 Belt Drive Rack and Pinion Steering Power Pack Replacement
Unable to Learn Tire Pressure Monitor Sensors
1.3L Engine Coolant Control Valve Failure
Fuel Injection Pump Installation and Diesel Engine Timing
High Resistance on Grounds G103A, G103B
My Open Cases List View Issue in CX Connect
Making Associated Accessory Warranty Claims
TAC and TCSC Phone Support to Require CX Connect Case Number
Vehicle-Wide Programming Update for EVs
Fuel Pump Power Control Module Internal Short
GM Service Know-How Emerging Issues
Guided Diagnostics – The Next Step in a More Focused Repair Path
Service Door Latch Message and Child Safety Lock Condition
Aftermarket Lighting, Sensor Obstruction May Cause False Front Park Assist Alerts
Oil Pan Wiring Harness Diagnostic TipsTAC Newsletter August 2026
TAC Newsletter April 2026
DCA-8000
Troubleshooting
Guide
MDI-2 Connections and Advanced Setup 2026
CX Connect Case Creation Help + Tips and Tricks
GM has recently established a new air conditioning refrigerant leak diagnostic procedure for GM EVs and PHEVs — including the Silverado EV, Blazer EV, Equinox EV, Bolt EV/EUV, Corvette E-Ray, […]
The latest update to GDS 2 in Techline Connect provides technicians with the ability to build personalized data parameter lists tailored for specific diagnostic sessions — identifying only the data […]
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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