Authorized U.S. dealership service department personnel can use the Pre-Repair Authorization (PRA) feature available in the Certified Service Mobile Toolbox (CSMT) application (Fig. 1) to request GM pre-approval for warranty […]
The 2020 Service Technician Satisfaction Survey is taking place now and technicians at all GM dealerships in the U.S. and Canada are encouraged to participate. (Fig. 4) GM and other […]
The popular Xccelerate mobile application is now available to all U.S. dealership technicians and service managers enrolled in the Mark of Excellence (MOE) program. Launched earlier this year as a […]
A software update for the EL-50332 EV/HEV Battery Service and Depowering Tool (Fig. 10) is now available through the Special Tools and Software Updates link in GM GlobalConnect. Fig. […]
An SD Card Error message may be displayed on the infotainment screen if the navigation SD card is improperly ejected from the card slot (Fig. 12) on 2020 Buick Encore, […]
Engine lubrication on all 2019-2020 Silverado 1500 and Sierra 1500 trucks is supplied by a variable displacement oil pump. An oil control solenoid valve, controlled by the Engine Control Module […]
A whining, growling or grinding sound may be heard on some 2017-2019 Colorado and Canyon models during acceleration or deceleration when traveling from 20 mph (32 km/h) to highway speeds. […]
Some 2019-2020 Silverado 1500 and Sierra 1500 models equipped with the 2.7L engine (RPO L3B) may have DTCs P06DA (Engine Oil Pressure Control Solenoid Valve Control Circuit), P06DB (Engine Oil […]
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 […]
The GE-52250 PowerSmoke Diagnostic Leak Detector (Fig. 1), now an essential tool shipping to all dealerships, can be used to help find induction and exhaust system leaks on 2010-2020 GM […]
An Over-The-Air (OTA) update for the 2020 Corvette was sent out recently that changed the Body Control Module (BCM) calibration for opening the hood, or front trunk, (Fig. 2) using […]
A missing exhaust isolator (Fig. 5) on 2020 Silverado and Sierra models equipped with the 3.0L Duramax diesel engine (RPO LM2) and the single exhaust system (RPO NB5) should not […]
The Field Service Engineer (FSE) Technician Recognition Awards (U.S.), a new recognition program that celebrates the skill and dedication of dealership technicians who have recently worked with FSE’s on challenging […]
Some 2021 Tahoe, Suburban, and Yukon models may have a rattle sound at the rear of the vehicle. The sound may be from the liftgate or liftglass. There are several […]
The exterior protective cover that wraps every 2020 Corvette (Fig. 20) to help shield the paint and body during shipping to the dealership should always be removed prior to vehicle […]
The air conditioning may blow warmer on the driver’s side of the vehicle on some 2019-2020 Silverado 1500 and Sierra 1500 models built at the Silao assembly plant (the plant […]
A flutter, rattle or similar wind noise may be heard from either the left front end and/or right front end of the vehicle at highway speeds on some 2021 Tahoe […]
The Diesel Exhaust System and DPF Soot Accumulation
Latest AFIT Software V13 Now Available
HFV6 Remanufactured Engine Drivability Diagnosis Following Installation
Silverado HD/Sierra HD Brake Squeal
Front End Rattle Sound at Highway Speeds
Slipping Output Speed Sensor Reluctor Wheel
Boom Sound Under Light Throttle
GM Service Know-How Emerging Issues
All-New 2021 Chevrolet Tahoe/Suburban and GMC Yukon/Yukon XL Have More Power, Capability, Content
New 2021 Tahoe/Suburban and Yukon/Yukon XL Air Ride Adaptive Suspension
2021 Tahoe/Suburban and Yukon/Yukon XL TAC Action Center
TPMS/RF Tool Software Update
1.2L Engine Oil Pan Installation
Warble Sound from Rear of Vehicle
Camshaft Position Actuator Valve Solenoid Bolt Replacement
Exhaust Pipe Shaped to Avoid Low Contact
Corvette Track Prep Requirements
Fuel Injection & Cooling System Tools
TechPRO Professional
Aftermarket Diagnostics
Tips for Warranty Reprogramming Events
Techline Connect Setup
for Updates
The new GM ToolNet special service tools inventory management application is now available to GM dealerships in the U.S. The Canadian application launches on April 20. To access the site, […]
Enter a few keywords in the Search box of the Service Information (SI), click the Search button, and all related results are shown. (Fig. 1) In some cases, depending on […]
GM models feature a variety of technology and new systems that may be unfamiliar to technicians and service consultants in GM dealerships. Following are several videos highlighting new features to […]
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