Rear Axle Sound While Making Tight Turns

Rear Axle Sound While Making Tight Turns

An audible clicking sound or chattering noise from the rear of the vehicle while making tight turns may be heard on some 2016-2023 LCF 3500/4500; 2017-2023 LCF 4500HD/4500XD, LCF 5500HD/5500XD; […]

November 29, 2022
Fuel Injector Causing Several DTCs to Set

Fuel Injector Causing Several DTCs to Set

Some 2022-2023 Corvette, Silverado, Tahoe, Suburban, Sierra, Yukon and Escalade models equipped with the 5.3L V8 engine (RPO L84) or 6.2L V8 engine (RPO L87, LT2) may have an illuminated […]

November 29, 2022
Charge Air Cooler Outlet Tube Connection

Charge Air Cooler Outlet Tube Connection

Reduced engine power may occur on some 2018-2022 Malibu, Equinox and Terrain models equipped with the 1.5L engine (RPO LYX) along with one or more of the following DTCs set […]

November 29, 2022
Identifying a Transfer Case Seal or Prop Shaft Plug Leak

Identifying a Transfer Case Seal or Prop Shaft Plug Leak

Automatic transmission fluid may be seen under the center of the vehicle on some 2015-2023 Escalade, Colorado, Express, Silverado 1500, Silverado 2500/3500, Tahoe, Suburban, Canyon, Sierra 1500, Sierra 2500/3500 and […]

November 29, 2022
V8 Engine Sounds

V8 Engine Sounds

The 6.2L V8 engine (RPO L87) and 6.6L V8 engine (RPO L8T) may produce several different sounds under various conditions on some 2019-2023 Silverado 1500, Silverado 2500/3500, Tahoe, Suburban, Sierra […]

November 29, 2022
November Service Newsletter from the Experts at GM TAC

November 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 November GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]

November 29, 2022
Remote Keyless Entry Transmitter Warranty Replacement Update

Remote Keyless Entry Transmitter Warranty Replacement Update

When replacing the Remote Keyless Entry (RKE) transmitter (key fob) (Fig. 1) under warranty on 2017-2023 GM vehicles equipped with Remote Keyless Entry/Passive Entry (RPO ATH) and Keyless Open/Start (RPO […]

November 18, 2022
FSE Technician Recognition Awards – 4th Quarter 2022

FSE Technician Recognition Awards – 4th Quarter 2022

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

November 18, 2022
Park Brake Will Not Learn After Rear Brake Service

Park Brake Will Not Learn After Rear Brake Service

Some 2018-2023 Equinox and Terrain models may have DTC C0561 43 (System Disabled Information Stored – EEPROM Incorrect Programming) set and the park brake will not learn after rear brake […]

November 18, 2022
Fuel in Vapor Lines After Refueling

Fuel in Vapor Lines After Refueling

Overfilling the fuel tank during refueling can lead to several engine performance issues and possible damage to the fuel system. If the fuel station fill nozzle automatically shuts off (clicks […]

November 18, 2022
GM Service Know-How Emerging Issues

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 features an update on the HUMMER EV. (Fig. 18) […]

November 18, 2022
Dealer Enrollment in the 2023 Technician Excellence Program Taking Place Now

Dealer Enrollment in the 2023 Technician Excellence Program Taking Place Now

GM announced the all-new Technician Excellence Program (U.S.) in January 2022 to recognize dedicated dealership service technicians. (Fig. 1) More than 27,000 technicians participated in the program. And each quarter, […]

November 8, 2022
Using Hoist Lift Pad Adapters for Silverado 1500 and Sierra 1500

Using Hoist Lift Pad Adapters for Silverado 1500 and Sierra 1500

Properly supporting 2019-2023 Silverado 1500 and Sierra 1500 models may require the use of lift pad adapters, depending on the hoist and lifting points used. When the new models of […]

November 8, 2022
Brake Pedal Play May Affect Cruise Control Operation

Brake Pedal Play May Affect Cruise Control Operation

Excessive brake pedal free play may cause the cruise control to not set or resume after braking on some 2022 Encore GX and Trailblazer models. It may be necessary to […]

November 8, 2022
MAF Sensor Calibration Update

MAF Sensor Calibration Update

After replacing the Engine Control Module (ECM) on some 2020-2023 Encore GX and Trailblazer models equipped with the 1.3L turbo engine (RPO L3T) and 2022 XT4, XT5, XT6; 2022-2023 Blazer […]

November 8, 2022