Programming Radio Software – Check the Build Number

Programming Radio Software – Check the Build Number

The software on many 2018-2021 GM models equipped with an Infotainment 3 System (RPOs IOR, IOS, IOT, IOU, IOV) (Fig. 1) can be updated over the air to the vehicle […]

January 27, 2021
Top XFuel Earners Recognized as Mark of Excellence Xccelerate Pilot Program Ends

Top XFuel Earners Recognized as Mark of Excellence Xccelerate Pilot Program Ends

The Xccelerate mobile application, launched as a pilot program in the 2020 Mark of Excellence (MOE) program (U.S.), has concluded. The interactive Xccelerate app provided technicians with more opportunities to […]

January 27, 2021
Interior Door Handle Replacement

Interior Door Handle Replacement

The chrome may be starting to peel off the interior door handle on some 2016-2020 Camaro models. (Fig. 9) The chrome separation may be noticed at the parting line of […]

January 27, 2021
GE-52250 PowerSmoke Diagnostic Leak Detector Warranty Upgrade (U.S.)

GE-52250 PowerSmoke Diagnostic Leak Detector Warranty Upgrade (U.S.)

The GE-52250 PowerSmoke Diagnostic Leak Detector is a GM Essential Tool that can be used to help find induction and exhaust system leaks on 2010-2020 GM models equipped with a […]

January 27, 2021
Air in the Cooling System

Air in the Cooling System

A water rush or gurgle sound from the heater core at the center of the instrument panel on some 2015-2019 Colorado and Canyon models may be caused by air ingestion […]

January 27, 2021
Speed Limited Due to Low Transmission Fluid

Speed Limited Due to Low Transmission Fluid

A Speed Limited or Reduced Propulsion Power message may display on the Driver Information Center (DIC) along with reduced power on some 2016-2019 Volts. The message may display for a […]

January 27, 2021
Cleaning and Disinfecting Infotainment Screens

Cleaning and Disinfecting Infotainment Screens

A ghost or phantom touch, where random touch inputs occur on the infotainment screen display, and/or the infotainment display is non-responsive to touch immediately after having been cleaned, wiped, or […]

January 27, 2021
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 […]

January 27, 2021
Uneven or Leaning Air Ride Adaptive Suspension

Uneven or Leaning Air Ride Adaptive Suspension

Some 2021 Tahoe, Suburban, Yukon and Escalade models equipped with the available Air Ride Adaptive Suspension (RPO F47) may have a suspension trim height that is too high or too […]

January 14, 2021
Configuring Driver Assistance Systems

Configuring Driver Assistance Systems

From Forward Collision Alert to Reverse Automatic Braking, the advanced driver assistance systems available on current GM models offer features that range from providing alerts and warnings to hands-free driving […]

January 14, 2021
Latest Dealer Infrastructure Guidelines Released for 2021

Latest Dealer Infrastructure Guidelines Released for 2021

GM has recently released the latest Dealer Infrastructure Guidelines (DIG) for 2021. The guidelines outline the dealership technology needed to ensure reliable data communications for all dealers, including recommended personal […]

January 14, 2021
Rear Axle Clunk Sound

Rear Axle Clunk Sound

Some 2015-2021 Colorado and Canyon models may have a clunking sound heard from the rear axle area when driving over railroad tracks and/or entering or exiting parking lots and driveways. […]

January 14, 2021
Sunroof Drain Hose Extensions

Sunroof Drain Hose Extensions

There may be a gurgle or sloshing sound heard on some 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with a panoramic sunroof (RPO C3U). (Fig. 14) The sound may […]

January 14, 2021
Knock Sensor Inspection

Knock Sensor Inspection

A wiring harness condition or loose knock sensor bolt may be found on some 2020 Camaros with the 2.0L 4-cylinder engine (RPO LTG). The Check Engine light may be illuminated […]

January 14, 2021
Exhaust Charge DTC Diagnostics

Exhaust Charge DTC Diagnostics

Some 2019-2021 Silverado, Sierra; 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with the 5.3L engine (RPO L84) or 6.2L engine (RPO L87) (Fig. 19) may have any of the […]

January 14, 2021
Transmission Shift Conditions

Transmission Shift Conditions

Some 2020 Silverado and Sierra models equipped with the 8-speed automatic transmission (RPO MQE) may have a slipping or improper shifting condition or may have defaulted to only one gear. […]

January 14, 2021
Installing a Rearview Camera Kit

Installing a Rearview Camera Kit

A factory provided rearview camera kit is available on 2013-2021 Express and Savana cutaway models as well as 2019-2021 Silverado 1500, Sierra 1500, 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models. […]

January 14, 2021
New Circuit/System Testing for Parasitic Draws

New Circuit/System Testing for Parasitic Draws

Components most likely to cause a parasitic draw on the 12V battery on GM models include switches, relays, LIN buses and control modules. A new voltage drop test in Service […]

December 21, 2020