Search Results for "Corvette" : 107

TCM DTCs Set on Vehicle Start Up

TCM DTCs Set on Vehicle Start Up

Some 2020-2022 Corvette models may have a Service Transmission message on the Driver Information Center (DIC), an illuminated Check Engine MIL and a squealing sound immediately after starting the engine. […]

June 21, 2022
Unable to Open Convertible Top Due to Unseated Access Hole Plug

Unable to Open Convertible Top Due to Unseated Access Hole Plug

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 […]

May 10, 2022
Hot and Cold – Summer Tire Performance and Cold Weather Cracking

Hot and Cold – Summer Tire Performance and Cold Weather Cracking

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 […]

April 29, 2022
Engine-Related Shudder Concerns

Engine-Related Shudder Concerns

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 […]

April 29, 2022
Wireless Phone Charger Reminder

Wireless Phone Charger Reminder

2020-2022 Corvette models feature a wireless phone charger pocket between the driver’s and passenger’s seatbacks. (Fig. 15) The charger is capable of charging the batteries of compatible mobile phones.   […]

April 5, 2022
Driver Seat Adjuster Memory Module Conditions

Driver Seat Adjuster Memory Module Conditions

There may be several power seat adjustment conditions found on some 2020-2021 Corvette, CT4, CT5; 2021 Envision, Escalade, Tahoe, Suburban and Yukon models. The seat adjustment conditions may include: The […]

January 31, 2022
Driver’s Outside Rearview Mirror Appearance

Driver’s Outside Rearview Mirror Appearance

The driver’s outside rearview mirror on some 2020-2022 Corvettes may have poor operation and appearance, including numerous lines shown in the mirror and a dim reflection at all times. (Fig. […]

November 23, 2021
Convertible Top Front Latch Striker Adjustment

Convertible Top Front Latch Striker Adjustment

The convertible top may not lower intermittently on some 2020-2021 Corvettes. DTC B19E4 (Hard Top Locked Closed Signal) SYM64 also may stored in history. SYM64 indicates that the folding top […]

September 24, 2021
Transmission Cartridge Filter Return

Transmission Cartridge Filter Return

GM Engineering is conducting transmission filter inspections on 2020-2021 Corvette models (U.S. only). The Tremec DCT TR9080 dual clutch transaxle (RPO M1L) features a transmission cartridge filter (Fig. 24) that […]

September 24, 2021
Fuse Block or Junction Block Terminal Retention

Fuse Block or Junction Block Terminal Retention

Some 2020-2021 Corvettes may experience several electrical concerns related to terminal retention issues at the instrument panel wiring harness fuse block (located at the passenger’s side of the instrument panel) […]

August 31, 2021
Inoperative Steering Wheel Thumbwheel Select Control Reset

Inoperative Steering Wheel Thumbwheel Select Control Reset

The Driver Information Center (DIC) thumbwheel control on the right side of the steering wheel on some 2021 Corvettes (Fig. 28) may not work when selecting any Information tiles, radio […]

August 31, 2021
Buckle to Drive Added to More Upcoming Models

Buckle to Drive Added to More Upcoming Models

The Buckle to Drive feature that prevents drivers from shifting out of Park until the seat belt is buckled will be included as standard equipment on more upcoming GM models, […]

July 16, 2021
Inoperative Hood Release Buttons

Inoperative Hood Release Buttons

The electrical hood release buttons (Fig. 11) may be inoperative and a Hood Ajar message may be displayed on the Driver Information Center on some 2020-2021 Corvette models. The hood […]

June 29, 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 […]

June 29, 2021
Engine Vibration Diagnosis

Engine Vibration Diagnosis

When diagnosing an engine vibration condition that occurs when the vehicle is stationary or accelerating from a stop on some 4.3L V6 (RPO LV1, LV3), 5.3L V8 (RPO L82, L83, […]

June 14, 2021
No Fob Detected Message

No Fob Detected Message

Some 2020-2021 CT4, CT5; 2021 Envision, Corvette, Tahoe, Suburban, Yukon and Escalade models may have a no crank/no start condition with a No Fob Detected message on the Driver Information […]

May 27, 2021
Internal Transmission Faults Not Serviceable at the Dealership

Internal Transmission Faults Not Serviceable at the Dealership

A Service Transmission message or a Service Engine Soon message may be displayed on the Driver Information Center of some 2020-2021 Corvettes equipped with the DCT TR9080 transmission (RPO M1L) […]

April 13, 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
EVAP Testing Port Modification

EVAP Testing Port Modification

The EVAP line connection style has changed on the 2020-2021 Corvette equipped with the 6.2L V8 engine (RPO LT2). If a vehicle requires the EVAP system to be tested for […]

March 12, 2021