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AFIT Vehicle Application Chart
J-38125 Terminal Repair Kit Update Procedure
Tips for Warranty Reprogramming Events

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Check 55-Way Connector if Glow Plug DTCs are Set
Setting Up Wired and Wireless MDI 2 Connections
MDI 2 Advanced Setup Technical Tips Update
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Camshaft Position Sensor Performance Diagnosis
Tick Sound at Idle on V8 Engines
March Service Newsletter from the Experts at GM TAC
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

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Join the monthly 1-hour call (U.S. only) with your Field Service Engineers to discuss current technical topics. Three call times are available.

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TAC Newsletter April 2026

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TAC Newsletter March 2026

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Techline Connect Tips November 2024

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CX Connect Case Creation Help + Tips and Tricks

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Safety Arc-Rated Personal Protection Equipment for Electric Vehicles

Safety Arc-Rated Personal Protection Equipment for Electric Vehicles

January 29, 2026 — 4 comments

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 […]

Techline

MDI 2 Manager Update Adds Support for New Wireless Dongles

MDI 2 Manager Update Adds Support for New Wireless Dongles

January 16, 2026 — 29 comments

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 […]

How Things Work

How Things Work

New Model Features and Product Information Videos

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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