The replacement program (U.S.) for the 9T65 9-speed automatic transmission (RPO M3V, M3W) on 2018-2021 Enclave, Traverse; 2019-2021 Blazer; and 2020-2021 Acadia, XT5, and XT6 models (Fig. 1) has recently […]
When diagnosing an engine vibration condition that occurs when the vehicle is stationary or accelerating from a stop on some 4.3L V6 (RPO LV1, LV3), 5.3L V8 (RPO L82, L83, […]
The Automatic Stop/Start feature (Fig. 5) is no longer available on some 2021 model year vehicles due to the industry-wide shortage of semiconductors. The affected models include 2021 Silverado 1500, […]
Some 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models – equipped with the 6.6L Duramax diesel engine (RPO L5P), 10L1000 10-speed automatic transmission (RPO MGM, MGU) and the 2-speed transfer case […]
A Service Theft Deterrent message may be displayed on the Driver Information Center (DIC) on some 2018-2021 XT5 and 2020-2021 XT6 models equipped with RPO UTU (Vehicle Inclination Sensor) and […]
A dead battery as well as several other conditions, including slow engine crank, inoperative Auto Stop/Start (if equipped), radio on or fades out slowly after the ignition is off, and […]
Some 2020-2021 Blazers may have a number of various conditions occurring, such as multiple instrument cluster indicators illuminated, instrument cluster gauges dropping out, door locks cycling, inoperative passive entry and […]
Possible A/C refrigerant contamination may be causing the air conditioning to take longer than usual to cool the vehicle on some 2020-2021 Equinox and 2021 Blazer models. Check the latest […]
At TechLink, our focus is to always bring you the latest on diagnostic and technical repair information, new model features and special tools operation, plus all the news that affects […]
Updated battery inspection and reprogramming procedures for some 2017-2021 Bolt EV models have been released to help determine battery cell voltage performance. (Fig. 1) The repair procedure also includes reprogramming […]
The Certified Service Mobile Toolbox (CSMT) application, which includes the Pre-Repair Authorization (PRA) Process; Field Product Reporting (FPR) for U.S. dealerships or Product Information Reporting (PIR) for Canadian dealerships; and […]
The original tires installed on GM vehicles are designed and tested for specific vehicle applications. Full-size trucks feature a variety of different tires that are designed to perform under all […]
The 2020-2021 Corvette Stingray features two brake options. RPO JL9 is the base brake system, while the heavy-duty RPO J55 brake system is standard on all models with the Z51 […]
Some 2021 Tahoe, Suburban, Yukon and Escalade models may have a no crank/no start condition with a No Fob Detected message on the Driver Information Center. The Remote Keyless Entry […]
There may be an intermittent extended crank or intermittent crank/no start condition on some 2020-2021 Silverado, Sierra; and 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with the 3.0L diesel […]
The infotainment screen on some 2020-2021 XT5, XT6 and Acadia models may intermittently show a black screen with red triangle and red camera icons when the vehicle is in Reverse. […]
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 […]
Let’s Take a Look – Remote Diagnostics Using Video Calls with Dealerships
Latest Techline Connect Software Update Released
Testing Setup and Valid Test Codes Key to Battery Warranty Claims
FSE Technician Recognition Awards – 2nd Quarter 2021
GM Accessory Cold Air Intake System Requires Calibration
Engine Overheating Message
False Park Assist Alerts
Latest Labor Time Guide Provides New Add Times for Transmission Repairs, Reduces Need for OLH
Latest GM Global Electronic Parts Catalog Update Enhances Part Filters for Better Search Results
Tips for USB Programming
Remote Keyless Entry Transmitter Warranty Replacements
Common Concerns from the Escalade TAC Action Center
Poor Engine Performance in High Ambient Temperatures
Engine Shudder Concerns
Engine Rattle Sound from Purge Solenoid
GM Service Know-How Emerging IssuesMicrosoft Teams Meeting Guide
GM Laptop Promotion
TechPRO Professional
Aftermarket Diagnostics
Tips for Warranty Reprogramming Events
Techline Connect Setup
for Updates
A new warranty requirement (U.S. only) is being implemented when replacing the Remote Keyless Entry (RKE) transmitter (key fob) (Fig. 12) under warranty on 2017-2022 GM vehicles equipped with Remote […]
Programming calibrations and software requires the transfer of large files to the vehicle from the Service Programming System (SPS). When transferring a large file (greater than 1 GB) from the […]
The GMC Yukon/XL with the available Rear Seat Media system features the ability to connect an Apple iPhone. Once connected, media on the iPhone can be played...
Designed by WPZOOM
