Proper Key Fob Inspection and Battery Replacement
Any time the Remote Keyless Entry (RKE) transmitter (key fob) on 2017-2022 GM vehicles is opened, such as when inspecting the fob for proper operation or replacing the battery, the […]
Heater Outlet Pipe Coolant Leak
A coolant leak or coolant smell at the front passenger-side of the vehicle may be noticed on some 2019-2021 Silverado 4500HD/5500HD/6500HD models equipped with the 6.6L Duramax diesel engine (RPO […]
3.6L Engine Intake Camshaft Position DTCs
Some 2021 Camaro models equipped with the 3.6L V6 engine (RPO LGX) may have an illuminated Check Engine MIL and DTCs P0011 (Intake Camshaft Position System Performance Bank 1) and/or […]
GM Service Know-How Emerging Issues
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 […]
Know Your Shipping Guidelines When Returning Parts to the Warranty Parts Center
In order to better understand and help resolve product issues quickly, the GM Warranty Parts Center (WPC) occasionally requests the return of specific parts replaced at dealerships through the Global […]
Engine Misfire Detected without Drivability Concerns
An engine misfire DTC may be set on some 2020-2021 Silverado 1500 and Sierra 1500 models equipped with the 5.3L V8 engine (RPO L84). However, the misfire may not be […]
Photos Increase the Value of Feedback in Engineering Information Lite Bulletins
Seeing how a condition affects vehicle operation is critical to proper diagnosis. That’s why GM requests photos to be included when possible with Field Product Reports (FPR) that are part […]
Buckle to Drive Added to More Upcoming Models
The Buckle to Drive feature that prevents drivers from shifting out of Park until the seat belt is buckled will be included as standard equipment on more upcoming GM models, […]
Transfer Case Input Seal Installation
Seal installation depth is critical when replacing the transfer case input seal. On some 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks equipped with the 10L1000 10-speed automatic transmission (RPO MGM, […]
Freezing Turbocharger Wastegate Regulator Solenoid Valve
Some 2016-2019 Cruze models equipped with the 1.4L engine (RPO LE2) may have DTC P0234 (Engine Overboost) and P0299 (Engine Underboost) set while driving in colder weather. Due to […]
Wiring Harness Damage
Several Driver Information Center warning messages may display on some 2019-2021 Blazers, including service brake, service steering, reduced power and other messages. The Check Engine MIL also may be illuminated […]
What are Your Thoughts? Take the TechLink Survey Today
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 […]
Exhaust Control Valve Actuator Replacement
Several exhaust-related DTCs may be set in the Engine Control Module on some 2020-2021 CT4 and CT5 models equipped with the 2.7L engine (RPO L3B) or 3.0L engine (RPO LGY). […]
Update: Silverado 2500HD/3500HD and Sierra 2500HD/3500HD Brake Pads
Some 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models may have a brake squeal condition caused by the low scorch friction material used on the original brake pads. To reduce the […]
2022 OE Battery Ratings Chart
An updated Original Equipment (OE) Battery Ratings chart, with added specs for 2022 models, is now available under the Reference Charts menu for use when testing batteries using the EL-50313 […]
Harsh Downshift and Upshift Conditions
A harsh 5-4 downshift and harsh 1-2 upshift may be felt on some 2017 Colorado and Canyon models equipped with the 8-speed 8L45 automatic transmission (RPO M5T). These shift conditions […]
Inoperative Hood Release Buttons
The electrical hood release buttons (Fig. 11) may be inoperative and a Hood Ajar message may be displayed on the Driver Information Center on some 2020-2021 Corvette models. The hood […]
Squeak Sound from Exhaust System
Some 2016-2021 Camaro models equipped with the 3.6L V6 engine (RPO LGX) may have a squeak sound coming from the exhaust system while driving over bumps. The sound may be […]
Performing Successful Warranty Reprogramming Events
In order to ensure successful and complete repairs are made when reprogramming control modules, GM reviews module reprogramming warranty claim information and compares it to Service Programming System (SPS) reprogramming […]
Rear Seat Belt Comfort Guides No Longer Included on Some Vehicles
Rear Seat Belt Comfort Guide packages for the second- and third-row seats, if equipped, are now available to order for 2022 XT4, XT5, XT6, Blazer, Traverse and Acadia models. These […]
Print Edition
Previous Articles
Corvette E-Ray Delivers Electrified AWD Performance
Corvette E-Ray 12-Volt Lithium-Ion Battery
Power Liftgate Battery Draw Conditions
April Service Newsletter from the Experts at GM TAC
New Design Intake Manifold Addresses Poor Engine Performance
Free Spinning or Grinding Starter Sounds
May Service Newsletter from the Experts at GM TAC
New Battery Cell Chemistry Identification
GM Service Know-How Emerging Issues
New Trailer Tire Pressure Sensors Offer Increased Capability
Inoperative USB Port Diagnosis
Avoid the TUN# Label When Cleaning Transmission Cases
High-Pitched Whistling Sound at Idle
GM Dealer Equipment (GMDE)
TAC Newsletter June 2024
TAC Newsletter May 2024
Techline Connect Tips June 2024
