The next generation Diagnostic Charge Battery Station (DCBS), available beginning in July 2019 from GM Dealer Equipment, promises to make battery testing faster and easier. Integrating the latest technology, the […]
Techline computers in GM dealerships running a Windows 7 Professional operating system (OS) must be replaced by December 31, 2019 in order to receive assistance from the Techline Customer Support […]
There may be several electrical conditions on some 2017-2018 Silverado and Sierra and 2019 Silverado LD and Sierra Limited models. The conditions may include several illuminated brake and traction control […]
Some 2018-2019 Express and Savana vans equipped with the 4.3L V6 engine (RPO) LV1 may have a hard start condition, broken fan belt, loss of power steering or loss of […]
When replacing the control valve body on the 10-speed automatic transmission (RPO MQB) on 2019 CT6, Silverado 1500 and Sierra 1500 models, some of the bolts are one-time use bolts […]
First responder information regarding various hybrid and electric vehicles (EV) produced by GM is available online at GMSTC.com for emergency personnel. The information can help first responders in learning about […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]
The new 2019 Chevrolet Silverado 4500HD, 5500HD, 6500HD chassis cab models (Fig. 1) are the newest entries in the medium-duty truck market. The trucks are available as regular and crew […]
The new 2019 Chevrolet Silverado 4500HD, 5500HD, 6500HD chassis cab models are equipped with a standard 6.6L Duramax diesel V8 engine (RPO L5D) and Allison 6-speed automatic transmission. (Fig. 8) […]
The GM Upfitter Integration website — gmupfitter.com — offers a variety of valuable information and assistance for technicians and other personnel, including the latest bulletins involving upfitter equipment and technical […]
When shipping any automotive hazardous materials, such as air bags, seat belt pretensioners, brake boosters, compressed gas shocks, batteries, paint, solvents, and other parts, to the Warranty Parts Center (WPC), […]
A lack of engine performance along with an incorrect low fuel range display may be found on some 2017-2018 Acadia, Enclave, Traverse and XT5 models equipped with the 3.6L V6 […]
Some 2011-2015 Volt; 2011-2016 Cruze; 2012-2019 Sonic; 2013-2019 Encore, Trax; and 2014-2017 ELR models equipped with the 1.4L 4-cylinder engine (RPOs LUV, LUU) (Fig. 17) may have a tick or […]
A rubbing or popping sound coming from the front of the vehicle while making a sharp turn at low speeds may be heard on some 2019 Blazer models. One or […]
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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