Updated CSMT App Improves Pre-Repair Authorization Process

Updated CSMT App Improves Pre-Repair Authorization Process

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 […]

September 17, 2020
Take the 2020 Industry-wide Service Technician Satisfaction Survey Today

Take the 2020 Industry-wide Service Technician Satisfaction Survey Today

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 […]

September 17, 2020
Mark of Excellence Xccelerate App Now Live

Mark of Excellence Xccelerate App Now Live

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 […]

September 17, 2020
EL-50332 EV Battery Service and Depowering Tool Update

EL-50332 EV Battery Service and Depowering Tool Update

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. […]

September 17, 2020
Proper Navigation SD Card Ejection

Proper Navigation SD Card Ejection

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, […]

September 17, 2020
Engine Oil Pressure Gauge Changes Based on Engine Needs

Engine Oil Pressure Gauge Changes Based on Engine Needs

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 […]

September 17, 2020
Rear Differential Whining Sound

Rear Differential Whining Sound

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. […]

September 17, 2020
DTCs Set Due to Potential Engine Wiring Harness Conditions

DTCs Set Due to Potential Engine Wiring Harness Conditions

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 […]

September 17, 2020
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. The latest service topics from GM Brand Quality and Engineering covered in […]

September 17, 2020
GE-52250 PowerSmoke Diagnostic Leak Detector Shipping Now as Essential Tool

GE-52250 PowerSmoke Diagnostic Leak Detector Shipping Now as Essential Tool

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 […]

August 31, 2020
Corvette Hood Access Update

Corvette Hood Access Update

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 […]

August 31, 2020
Duramax Diesel Exhaust Isolator No Longer in Production

Duramax Diesel Exhaust Isolator No Longer in Production

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 […]

August 31, 2020
FSE Technician Recognition Awards – 2nd Quarter 2020

FSE Technician Recognition Awards – 2nd Quarter 2020

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 […]

August 31, 2020
Liftgate or Liftglass Rattle Sound

Liftgate or Liftglass Rattle Sound

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 […]

August 31, 2020
Corvette Exterior Protective Cover Removal

Corvette Exterior Protective Cover Removal

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 […]

August 31, 2020
Poor Driver’s Side A/C Performance

Poor Driver’s Side A/C Performance

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 […]

August 31, 2020
Flutter Sound at Front of the Vehicle

Flutter Sound at Front of the Vehicle

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 […]

August 31, 2020