New DCBS Software Update Now Available

New DCBS Software Update Now Available

A new software update (DCAG1-35-01) and database update (DCDG1-11) are now available for the EL-52800 Diagnostic Charge Battery Station (DCBS). All DCBS units should be updated to ensure battery testing […]

February 24, 2023
Air Suspension Low with Communication Codes Set

Air Suspension Low with Communication Codes Set

Some 2021-2023 Tahoe, Suburban, Yukon and Escalade models equipped with the air leveling suspension (RPO F47) may have a low or leaning suspension or the air leveling function may be […]

February 24, 2023
Dead Battery or Cruise Control Inoperative

Dead Battery or Cruise Control Inoperative

A no start condition due to a dead battery may be found on some 2023 Blazers along with intermittent cruise control operation. Along with these conditions, the brake lights may […]

February 24, 2023
February Service Newsletter from the Experts at GM TAC

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

February 24, 2023
AFIT Adapter Cable Identification and Vehicle Application Chart Update

AFIT Adapter Cable Identification and Vehicle Application Chart Update

The Active Fuel Injector Tester (AFIT) Vehicle Application Chart (Fig. 8), which can help identify the correct cable adapters for each GM model, has been updated with the latest model […]

February 24, 2023
Lunch and Learn with Field Service Engineers Each Month

Lunch and Learn with Field Service Engineers Each Month

Looking to get the latest technical information from Field Service Engineers (FSE)? And talk to FSEs about recent repairs you’ve experienced in your dealership? Check out the monthly FSE Lunch […]

February 17, 2023
ASE Remote Recertification Offers Convenient Testing Option

ASE Remote Recertification Offers Convenient Testing Option

The National Institute of Automotive Service Excellence (ASE) offers a remote testing option for ASE recertification tests. With the flexible, convenient remote option, service technicians can obtain ASE recertification without […]

February 17, 2023
Dual Clutch Transmission Canister Filter and Maintenance Schedule

Dual Clutch Transmission Canister Filter and Maintenance Schedule

The Tremec DCT TR9080 dual clutch transmission (RPO M1L, M1M) on 2020-2023 Corvettes features a transmission canister filter (Fig. 3) that should be replaced at the initial 7,500-mile (12,000-km) maintenance […]

February 17, 2023
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 reviews air spring repairs on full-size SUVs. (Fig. 7) […]

February 17, 2023
Communication DTCs Set on 3.0L Duramax Diesel Engine

Communication DTCs Set on 3.0L Duramax Diesel Engine

Several communication DTCs may be set on some 2022 Silverado 1500, Tahoe, Suburban, Sierra 1500, Yukon and Escalade models equipped with the 3.0L Duramax diesel engine (RPO LM2). Along with […]

January 30, 2023
HFV6 Gen 2 Engine Timing Chain Installation

HFV6 Gen 2 Engine Timing Chain Installation

Proper timing chain installation on the High Feature V6 engine (RPO LGX, LGZ, LGY, LGW) requires confirming the location of the green-colored chain links. In order to get a proper […]

January 30, 2023
Front Axle Click Sound in 2WD

Front Axle Click Sound in 2WD

A squeak or click sound may be heard coming from the front of some 2019-2022 Silverado 1500, Sierra 1500; 2021-2022 Tahoe, Suburban, Yukon and Escalade models equipped with all-wheel drive/four-wheel […]

January 30, 2023
Side Blind Zone Alert Reset

Side Blind Zone Alert Reset

The Side Blind Zone Alert indicator on some 2021-2023 CT4, CT5, Escalade, Tahoe, Suburban and Yukon models equipped with Super Cruise (RPO UKL or UKL and 00U/02O) may not operate […]

January 30, 2023
January Service Newsletter from the Experts at GM TAC

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

January 30, 2023