The latest Service Programming System (SPS) update in Techline Connect features a new option when selecting the SPS programming type. (Fig. 1) This new requirement is designed to help reduce […]
For more than two decades, GM World Class Technician (WCT) status has been the highest recognition a GM service technician can earn. (Fig. 3) Established in 2004, the program recognizes […]
GM has recently announced that the serial numbers of removed and installed components must be recorded when certain labor operations are used. Tracking serial numbers helps link returned components to […]
The low tire pressure MIL may be illuminated along with a message on the Driver Information Center on some 2024-2026 Acadia, Traverse; and 2025-2026 Enclave models. In addition, the tire […]
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 […]
The Techline Customer Support Center (TCSC) is available to help dealerships with diagnostic and programming issues related to Techline Connect (TLC) and the Service Programming System (SPS). TCSC has now […]
Some 2024-2026 Equinox and Terrain models may exhibit several engine cooling and air conditioning issues, including engine overheating, an inoperative cooling fan and inoperative air conditioning. DTC P0494 (Cooling Fan […]
The transmission may get stuck intermittently in 1st gear on some 2024-2026 Traverse, Acadia; and 2025-2026 Enclave models equipped with the 8-speed 8T65 automatic transmission (RPO MF8). If this occurs, […]
If one of the Gear Shift Control Module buttons (Fig. 6) is stuck on a 2022-2026 Silverado 1500, Sierra 1500 or HUMMER EV, check for any liquid spills that may […]
GM Parts Connect, GM’s next generation web-based parts catalog and ordering platform that launched in early July, has been built to help dealership personnel quickly identify, verify and order the […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. The August seminar (10226.08V – U.S.) takes a look at the GM-53435 Brushless 3-Phase […]
The monthly Lunch with Your Field Service Engineers meeting will take place August 19. Each one-hour meeting is held online via Microsoft Teams and offers GM dealership technicians, shop foremen […]
The belt driven electronic power steering system on the 2020-2026 Silverado 1500 and Sierra 1500 features a belt drive and ball nut mechanism, power pack, torque sensor and a rack […]
The tire pressure warning lamp may be illuminated and the tire pressure learn for one or both front tires may not be able to be completed on some 2025-2026 Equinox […]
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 TipsDCA-8000
Troubleshooting
Guide
TAC Newsletter August 2026
TAC Newsletter April 2026
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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