Techline Connect brings together all the common resources technicians use every day for diagnosis and repairs in an all-in-one application. The all-new application has a single sign-on for access to […]
The Afterblow feature is now enabled from the factory on 2021 Acadia (Fig. 12), Blazer, Bolt EV, XT5 and XT6 models. Previously, the Afterblow feature was disabled when the vehicle […]
Some 2020 Silverado, Sierra; 2020-2021 Camaro; 2021 Corvette, Tahoe, Suburban, Yukon, and Escalade models equipped with the 5.3L engine (RPOs L82, L84), 6.2L engine (RPOs L87, LT1, LT4, LT2), or […]
The trailer running lamps may illuminate momentarily and then turn off or may flash when connected to 2019 Silverado 1500 and Sierra 1500 models. When operating a trailer running lamp […]
DTC P2101 (Throttle Actuator Position Performance) may be set in history on some 2020-2021 CT5 models equipped with the 2.0L engine (RPO LSY). If DTC P2101 is set, complete all […]
Some 2020-2021 Encore GX and 2021 Trailblazer models equipped with the 1.3L engine (RPO L3T) may have a tapping sound coming from the engine that may sound similar to a […]
Some 2017-2018 Silverado, Sierra; 2017-2020 Tahoe, Suburban, Yukon, Escalade; 2019 Silverado LD, Silverado 2500/3500, Sierra Limited, Sierra 2500/3500; and 2019-2020 Silverado 4500HD/5500HD/6500HD models may have several communication concerns resulting in […]
Some 2020 Corvettes may have an illuminated Check Engine MIL and a reduced engine power message on the instrument cluster with no noticeable performance issues. DTCs P1967 (Serial Data Message […]
Techline Connect, GM’s next generation diagnostic application, has released a new tool to help determine the condition of a vehicle’s battery. Battery Condition is determined using “Power of Green;” a […]
A new version of the GM Global Electronic Parts Catalog (EPC) will be released on October 17, 2020 with a number of enhanced features and functionality. (Fig. 1) The Q.link™-supported […]
The Rear Seat Media system available in the new 2021 Tahoe, Suburban, Yukon, and Escalade offers high-definition entertainment using two touchscreen displays and two infrared headsets. (Fig 8) Rear seat […]
After cycling a 3rd-row seat to the up position on some 2021 Tahoe, Suburban and Yukon models, the headrest may not return to or stay in the upright position. In […]
Some 2020-2021 Silverado and Sierra models equipped with the 3.0L turbocharged Duramax diesel engine (RPO LM2) may exhibit a lack of performance along with DTCs P003A (Turbocharger Boost Control Position […]
A potential oil leak from the camshaft carrier gasket may be found on some 2019 CT6; 2019-2021 XT4; 2020-2021 Acadia, Blazer, CT4, CT5, XT5 and XT6 models equipped with the […]
The particulate matter sensor protection tube performance diagnostic may set a false DTC P1488 (Particulate Matter Sensor Temperature Circuit High Voltage) on some 2020 Silverado and Sierra trucks equipped with […]
Some 2020-2021 XT5 and XT6 models equipped with Night Vision (RPO UV3) may show a green, pixelated display in the Driver Information Center when Night Vision is selected. There are […]
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 […]
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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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