TechLink – Page 20

Exhaust Valve Electrical Connector Reconfiguration

For the 2023 model year, there are two possible exhaust muffler designs available on Escalade models. (Fig. 6) The muffler design was changed later in the model year with a […]

April 19, 2024 —

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. This month the seminar looks at updating the Diagnostic and Charge Battery Station […]

April 19, 2024 —

Transmission Whine Sound

There may be a whine sound heard under light acceleration or when coasting on some 2023-2024 Colorado and Canyon models equipped with the 8L45 or 8L80 8-speed automatic transmission (RPO […]

March 29, 2024 —

March Service Newsletter from the Experts at GM TAC

The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the March GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]

March 29, 2024 —

Vehicle Alignment and Super Cruise

After a wheel alignment, the Super Cruise system (RPO UKL) – Lane Active Safety-Keep Assist, Hands-Free Lane Following (Entire Speed Range) (Fig. 9) – may not center the vehicle properly […]

March 29, 2024 —

Rear Axle Differential Lock Control Actuator Condition

A Service All Wheel Drive message may be displayed on the Driver Information Center in some 2020-2023 Encore GX and 2021-2023 Trailblazer models equipped with the 1.3L engine (RPO L3T) […]

March 29, 2024 —

Diesel Exhaust Fluid Supply Pipe Contamination

Some 2020-2024 Silverado 1500, Silverado 2500HD/3500HD, Sierra 1500, Sierra 2500HD/3500HD; 2021-2024 Tahoe, Suburban, Yukon and Escalade models equipped with the 3.0L diesel engine (RPO LZ0, LM2) or 6.6L diesel engine […]

March 29, 2024 —

FSE Technician Recognition Awards – 1st Quarter 2024

The GM Field Service Engineer (FSE) Technician Recognition Awards (U.S.) celebrate the skill and dedication of dealership technicians who have recently worked with FSEs on challenging repairs. Technicians at GM […]

March 21, 2024 —

Crankshaft Bearing Diagnosis

A growling, knocking or rhythmic thumping sound may be heard on some 4.3L engines (RPO LV3), 5.3L engines (RPO L82, L84) and 6.2L engines (RPO L87, LT1, LT2, LT4, L8T) […]

March 21, 2024 —

Convertible Top Water Leak

Some 2020-2024 Corvette convertible models may have a water leak around the side glass. The leak, which is found at approximately the middle rear of the side glass area (Fig. […]

March 21, 2024 —

Power Tonneau Cover Tips

The GM Accessory Power Tonneau Cover (part number 86575628 or 86595165) is available on 2022-2024 HUMMER EV Pickups. (Fig. 15) If the hard power-retractable tonneau cover is not operating properly, […]

March 21, 2024 —

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. This month the seminar takes a look at the “E-Phaser” cam phaser system […]

March 21, 2024 —

MDI 2 Advanced Setup Technical Tips Update

With the MDI Manager application software, the MDI 2 can be configured to communicate with a PC using several possible networks, such as a USB cable, ethernet cable, Wireless Local […]

February 20, 2024 —

Fuel Feed Pipe Buzzing Sound

Some 2017-2025 Camaro models equipped with the 6.2L V8 engine (RPO LT4) may have a buzzing, ticking or rattle sound coming from the passenger side of the vehicle. The sound […]

February 20, 2024 —