Archive for March, 2021

Programming with the Vehicle Intelligence Platform

Programming with the Vehicle Intelligence Platform

GM’s new Vehicle Intelligence Platform, or VIP, currently used on 2020-2022 Corvette, CT4, CT5 and 2021-2022 Tahoe, Suburban, Yukon, Escalade and Envision models, offers increased capacity and the ability to […]

March 30, 2021
Service Front Suspension Lift System Message

Service Front Suspension Lift System Message

Some 2020-2021 Corvettes may display a Service Front Suspension Lift System message on the Driver Information Center (DIC). DTCs C103C (Left Front Strut Position Sensor Signal) and/or C103E sym64 (Right […]

March 30, 2021
Torque Converter Clutch Shudder under Light Throttle Acceleration

Torque Converter Clutch Shudder under Light Throttle Acceleration

Some 2019-2020 Colorado and Canyon models equipped with the 8L90 8-speed automatic transmissions (RPO M5T) – VIN breakpoint from March 1, 2019 to End of Production – may have a […]

March 30, 2021
Latest EL-50332 EV Battery Service and Depowering Tool Software Released

Latest EL-50332 EV Battery Service and Depowering Tool Software Released

Software update version 10 for the EL-50332 EV/HEV Battery Service and Depowering Tool was recently released and is available through the Special Tools and Software Updates link in GM GlobalConnect. […]

March 30, 2021
Twisted Transmission Cooler Line

Twisted Transmission Cooler Line

A harsh shift, shudder, surge or stall condition may be present on some 2021 Silverado, Tahoe, Suburban, Sierra, Yukon, and Escalade models equipped with the 6L80 or 6L90 6-speed automatic […]

March 30, 2021
Poor Heater Performance

Poor Heater Performance

There may be poor heater performance from the driver-side HVAC vents on some 2019-2021 Silverado and Sierra models and 2021 Tahoe, Suburban, Yukon and Escalade models. In some cases, the […]

March 30, 2021
Corroded ECM Connector Terminals

Corroded ECM Connector Terminals

2013-2019 ATS models equipped with the 2.0L 4-cylinder engine (RPO LTG) or 2.5L 4-cylinder engine (RPO LCV) may have a crank, no start condition with an intermittent Check Engine MIL […]

March 30, 2021
Changes to the AFM and DFM Feature on 2021 Silverado 1500 and Sierra 1500

Changes to the AFM and DFM Feature on 2021 Silverado 1500 and Sierra 1500

Some 2021 Silverado 1500 and Sierra 1500 trucks equipped with the 5.3L V8 engine (RPO L82) and 6L80 6-speed automatic transmission (RPO MYC) or the 5.3L V8 engine (RPO L84) […]

March 30, 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 […]

March 30, 2021
Tips for Over-The-Air Software Programming

Tips for Over-The-Air Software Programming

Over-the-Air (OTA) software updates (Fig. 1) that are pushed to vehicles remotely continue to expand in frequency and use on GM models. Vehicles using the Global A electrical architecture can […]

March 12, 2021