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, […]
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 […]
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 […]
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 […]
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). […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 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 […]
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 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 […]
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TAC Newsletter March 2024
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Techline Connect Tips March 2023
The EL-52800 Diagnostic Charge Battery Station (DCBS) is the recommended and approved tool for diagnosing battery replacements and submitting battery warranty claims. And effective January 1, 2024, the DCBS (Fig. […]
A new feature will make logging into Techline Connect easier and quicker for users. Previously, Techline Connect had its own unique login, using the Techline Connect desktop icon, and users […]
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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