The Midtronics DCA-8000 Diagnostic Charger is the latest generation battery charger and tester from Midtronics. It provides fast, accurate testing results and is the GM-required tool for charging and testing […]
There may be a low or dead battery, no crank due to a dead battery, or an unwanted theft-deterrent alarm on some 2021-2026 Tahoe, Suburban, Yukon and Escalade models. (Fig. […]
A fluid leak may be visible on the steering gear (Fig. 6) or power steering fluid lines on some 2015-2026 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks. The leak may be […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar talks about high viscosity POE oil and fluorescent leak […]
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 […]
The monthly Lunch with Your Field Service Engineers meeting will take place April 8. The one-hour meeting will be held online via Microsoft Teams and offers GM dealership technicians, shop […]
Proactive Alerts, a feature of OnStar Advanced Diagnostics, are designed to help predict specific types of potential performance degradation based on current vehicle data. New Proactive Alerts have been added […]
Key cards are wallet-sized cards that can be used to unlock, lock and start a number of GM vehicles when the key fob is not available. Key cards (part of […]
When diagnosing engine performance issues, DTCs P0340 (Intake/Single Camshaft Position Sensor Circuit), P0341 (Intake/Single Camshaft Position Sensor Performance), P0011 (Intake/Single Camshaft Position System Performance) or P0016 (Crankshaft Position Sensor and […]
The 5.3L, 6.2L and 6.6L V8 engines (RPO L84, L87, L8T) available in 2019-2026 Silverado 1500, Silverado 2500HD/3500HD, Tahoe, Suburban, Sierra 1500, Sierra 2500HD/3500HD, Yukon and Escalade models may have […]
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 […]
An update to Bulletin #22-NA-038 has been released that covers changes for several Customer Concern Not Duplicated (CCND) labor operations that address screen conditions and audio system issues on 2022-2027 […]
The GM Field Service Engineer (FSE) Technician Recognition Awards (U.S.) celebrate the skill and dedication of dealership technicians who have recently worked with FSEs on challenging repairs. Technicians at GM […]
Some 2023-2026 Colorado and Canyon models may have a visible coolant leak from the upper radiator inlet hose connection or a low coolant level at the overflow reservoir. DTC P3075 […]
TCSC Top Issues This Week
Lunch with Your FSEs April Meeting
CCND Labor Codes Updated for Infotainment Audio and Screen Conditions
FSE Technician Recognition Awards – 1st Quarter 2026
Radiator Inlet Hose Coolant Leak
Sending GDS 2 Session Logs to TAC Using CX Connect
Key Fob Synchronization Update
CT5-V Blackwing Precision Package Features High-Performance Cup Tires with Unique Appearance
New TAC Phone Prompts Help Speed Support to Dealerships
Intermittent Front Lighting Operation
Loss of Reverse/Forward Grid Lines in Camera View
Inoperative Heated and Ventilated Front Seats
Brake Pad Wear Sensor Contact with Rear Half ShaftDCA-8000
Troubleshooting
Guide
TAC Newsletter March 2026
TAC Newsletter February 2026
Techline Connect Tips November 2024
CX Connect Case Creation Help + Tips and Tricks
Safety Arc-Rated (AR) Personal Protection Equipment (PPE) is recommended to be used by technicians when servicing some high-voltage battery packs under certain scenarios on GM electric vehicles. The PPE that […]
The latest update to the MDI 2 Manager in Techline Connect (version 9.1.2752.177) includes support for new MDI 2 wireless dongles. The new wireless dongles are similar to the previously […]
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.
Designed by WPZOOM
