2020 Chevrolet Corvette

The defect

General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.

The risk

If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.

The remedy

GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.

General Motors LLC · up to 3,677 vehicles across all model years covered

The defect

General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette vehicles. The driver's seat belt retractor may not lock as intended during a crash.

The risk

In the event of a crash, if the driver's seat belt fails to lock, there is an increased risk of injury.

The remedy

GM will notify owners, and dealers will replace the driver's side seat-belt retractor, free of charge. The recall began October 15, 2020. Owners may contact GM customer service at 1-866-522-9559. GM's number for this recall is N202307690.

General Motors LLC · up to 5 vehicles across all model years covered

The defect

General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette vehicles. Despite visual and audible warnings, the vehicle can be driven with the front trunk lid unlatched.

The risk

An unlatched hood can open when driving above a certain speed, obstructing the driver's forward view and increasing the risk of a crash.

The remedy

GM will notify owners, and dealers will update the software in the vehicle's Body Control Module to limit the vehicle speed to 26 mph when the hood is not completely closed and latched, free of charge. In addition, the operation of the hood release on the key fob will be modified to reduce the likelihood of inadvertent hood release actuations. Owners also may allow the vehicle to be remedied via an Over-The-Air (OTA) software update. The recall began September 24, 2020. Owners may contact GM customer service at 1-866-522-9559. GM's number for this recall is N202311160.

General Motors LLC · up to 7,071 vehicles across all model years covered · fixed by software update

The defect

General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette vehicles. The release button located inside the front trunk compartment may not function after the vehicle has been shut off for ten minutes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 401, "Internal Trunk Release."

The risk

If a person climbs inside the front trunk compartment and closes the lid, they may be trapped inside, increasing the risk of injury.

The remedy

GM will notify owners, and dealers will update the software in the vehicle's Body Control Module (BCM) to allow the release switch to always work, free of charge. Owners also may allow the vehicle to be remedied via an Over-The-Air (OTA) software update. The recall began September 3, 2020. Owners may contact GM customer service at 1-866-522-9559. GM's number for this recall is N202309350.

General Motors LLC · up to 5,141 vehicles across all model years covered · fixed by software update

towed · 7,200 miles

The contact owned a 2020 Chevrolet Corvette. The contact stated that while driving at an undisclosed speed, the contact came to a complete stop at a stop sign. The contact stated that the light turned green, the accelerator pedal was depressed, and the vehicle started jerking with a rumbling sound coming from the engine compartment. In addition, the engine independently shut off, however the transmission failed to properly shift, pressure level at zero, check engine light, idle creeping disabled, and service transmission warning lights illuminated. The contact stated that he restated the vehicle and the failure reoccurred, and the contact turned the vehicle off. The contact turned off and …

NHTSA complaint 11561551, quoted in part. Filed by an owner and not verified by NHTSA or by us.

towed · 40,000 miles

The contact's son owns a 2020 Chevrolet Corvette. The contact stated that while her son was driving 65 MPH, the oil temperature and check engine warning lights illuminated; however, the driver was able to safely drive to the destination. Upon leaving and attempting to start the vehicle, the vehicle failed to start. The vehicle was towed to the dealer, who diagnosed a failure with the main wiring harness. The vehicle was not repaired. The contact was informed that the replacement part was on a national backorder. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 40,000.

NHTSA complaint 11684791. Filed by an owner and not verified by NHTSA or by us.

See attached document for complaint.

NHTSA complaint 11749352. Filed by an owner and not verified by NHTSA or by us.

The dual clutch transmission on my 2020 C8 Corvette has a diagnostic code of p1955. This was determined after the service light on the vehicle illuminated and it was taken to service at the dealership. Other codes that stored included p0868 and p0869 which indicate low hydraulic pressure and high hydraulic pressure respectively. The p1955 code is an internal fault that requires complete replacement of the transmission according to GM service bulletins. This bulletin also advises that no repair attempts are to be made except for complete replacement. The vehicle has not shown any symptoms currently. Gears shift normally, there are no vibrations, etc. However, the dealership advised the …

NHTSA complaint 11737257, quoted in part. Filed by an owner and not verified by NHTSA or by us.

We have a water leak that was coming in both windows and onto the floor. Since reported it the car will slow down while driving because of codes issues about the doors are not closed and it is. I feel it's due to the water leak that is coming into the car. Took the car to a Chevrolet Dealer in Columbia South Carolina and they said it was coming from the roof weather stripping. They said it wasn't a recall for the 2020 C8 Corvette corvette yet. Also called GM Customer care to see if I can get some help to get it fixed. No luck.

NHTSA complaint 11710974. Filed by an owner and not verified by NHTSA or by us.

The ac compressor has had to be replaced twice since new ownership ( 38k miles now) the compressor blows apart at higher rpm causing car to be towed would need to contact dealer for exact dates

NHTSA complaint 11709439. Filed by an owner and not verified by NHTSA or by us.

Backup camera is intermittent. I have ain’t it to the dealership 3 times and they can replicate the issue consistently. They have scan the car for codes and seen the issue in person

NHTSA complaint 11708663. Filed by an owner and not verified by NHTSA or by us.