The national rollout (U.S.) of the Service Advisor Vehicle Interface (SAVI) – GM’s new service lane productivity and vehicle data documentation system – kicked off in April. Service Workbench Pro […]
In order to accurately diagnose a battery’s state of health from a vehicle in for service or that is part of the dealership’s inventory, the EL-52800 Diagnostic Charge Battery Station […]
Some 2011-2016 Cruze; 2012-2020 Sonic; 2013-2022 Encore and Trax models equipped with the 1.4L engine (RPO LUV) may experience several performance conditions, including loss of power, and an illuminated Check […]
Prior to replacing the Diesel Exhaust Fluid (DEF) tank on some 2020-2021 Silverado and Sierra models and 2022 Silverado 1500 LTD and Sierra 1500 Limited models, equipped with the 3.0L […]
The tailgate latch handle may become disengaged from the tailgate (Fig. 11) on some 2019-2021 Silverado 1500, Sierra 1500; 2022 Silverado 1500 LTD, Sierra 1500 Limited; and 2022 Silverado 1500 […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the April GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
The Active Fuel Injector Tester (AFIT), essential tool CH-47976, is designed to test fuel injectors on port and direct injected engines going back to the 1996 model year. As new […]
A strong odor may be noticed coming from the HVAC vents on some 2020-2022 Equinox and Terrain models when the air conditioning is on. (Fig. 5) The odor may be […]
An abnormal engine tapping sound may be heard on some 2019-2022 Silverado and Sierra models equipped with the 2.7L engine (RPO L3B). The sound may be heard from the cam […]
Some 2020-2022 Corvette Convertible models may have a power folding top that may not open. DTC B19E1 (Hard Top Stowed Signal) may be set. If the folding top will not […]
The new TechLink Engine Oil Capacities chart for the 2022 model year is now available under the Reference Chart menu. The chart includes engine, RPO, specifications (liters and quarts), oil […]
Many GM performance models are equipped with three-season performance tires, commonly referred to as “summer tires.” (Fig. 1) These high-performance tires have a special tread and compound that are optimized […]
There may be a brake fluid leak at the center of some 2018-2019 Express and Savana vans. There also may be a tapping or knocking sound heard during turns. These […]
A shudder or surge may be felt when driving at a steady speed on some 2014-2022 Corvette, Silverado, Sierra; 2015-2022 Tahoe, Suburban, Yukon, Escalade; 2016-2022 Camaro; 2020-2022 Silverado HD, Sierra […]
Some 2021-2022 Silverado, Sierra, Tahoe, Suburban, Yukon and Escalade models equipped with the 2.7L engine (RPO L3B) or 3.0L diesel engine (RPO LM2) and the 10L80 automatic transmission (RPO MQB, […]
DTC P06DD (Engine Oil Pressure Control Solenoid Valve Performance) may set during the first engine start up immediately following an engine oil and filter change on some 2019-2022 Silverado and […]
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 […]
New GMC HUMMER EV Pickup – An All-Electric Supertruck
Ultium Battery System Powers the GMC HUMMER EV Pickup
Replacement Part Traceability with the Certified Service Mobile Toolbox
Exposed Trim at Front of Tonneau Cover
April Service Newsletter from the Experts at GM TAC
Replace Oil Cooler Components after Connecting Rod or Crankshaft Main Bearing Damage
New LPO Accessory Labor Operations Cover Calibration Programming
Battery Testing Guidelines and Warranty Battery Replacement
New Techline Connect Software Update Released
Reduced Engine Power Message
Wireless Phone Charger Reminder
Assessing Park Assist Sensor Damage
New Technician Excellence Program Job Aids Help Track Technicians’ Progress
Inoperable Folding Rear Seat
Possible Engine Overheating Condition
Transfer Sound Insulator When Installing 10-Speed Service TransmissionService Programming Direct Launch Handling
GM Dealer Equipment (GMDE)
GM EV Safety Gloves
TAC Newsletter May 2022
Techline Connect Setup
for Updates
The latest software update (CH-47976-SWV16) for the CH-47976 Active Fuel Injection Tester (AFIT) has recently been released. The software update includes: 2023 model year database V19.00 updates for all vehicle […]
The March Techline Connect (TLC) software release includes several updates to aid navigation in the app as well as enhance screen formatting. The update should be downloaded automatically when logging […]
During daytime driving, the available Front Pedestrian Braking system can detect pedestrians directly ahead and display an amber warning indicator…
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