2020 Chevrolet Silverado 1500 Interior & seats Problems

I am writing to formally report a persistent and dangerous manufacturing defect regarding the rear window and seating assemblies in my 2020 Chevrolet Silverado. I have already had GM replace the rear window in 2023, it needs replaced again now in 2026. The rear window seal is failing, allowing a significant amount of rainwater to leak into the cab. Because of this ongoing water intrusion, the structural base and brackets of the rear seats have developed severe rust. Furthermore, I am deeply concerned that this constant moisture saturation is creating an unseen mold hazard within the cabin, which poses a direct health and respiratory risk to my passengers.This leak also risks damaging sensitive electrical components and wiring harnesses located under the rear seats and trim panels, potentially causing short circuits and sudden failures of critical safety systems while driving.Many other owners of this generation Silverado have reported identical issues, including cracked plastic frames around the sliding rear glass that cause the leaks. Because this defect compromises vehicle integrity, creates a risk of electrical failure, and poses health hazards from mold, I am requesting that the NHTSA investigate this issue as a potential safety defect requiring a manufacturer recall.

NHTSA ID

11738396

Incident

May 3, 2023

Sliding rear window leaking, causing mold and ruined seats. Had it "fixed" in 2023 only 3 years of owing it. Now here 3 years later the same issue is occurring and they're not willing to make it right. Mold causes a safety hazard for my children and anyone in my vehicle. My truck only has 30,000 miles on it and I shouldn't be having this issue

NHTSA ID

11737946

Incident

May 1, 2023

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that the tailgate failed to lock manually, with the key fob, or automatically. While approaching the vehicle in the morning, the contact became aware that the tailgate had opened unintendedly. The vehicle was not taken to the dealer to be diagnosed or repaired. The contact retrieved information about NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages); however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 56,235.

NHTSA ID

11727420

Incident

Mar 20, 2026

Mileage

56,235 mi

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the tailgate opened independently without warning. Upon investigation, the contact discovered NHTSA Campaign Number: 24V060000 (LATCHES/LOCKS/LINKAGES) and linked the failure to the recall. The local dealer was notified about the failure, and the contact was informed that the VIN was not covered under the recall, and the contact was provided with an estimate for the repair. The manufacturer was also notified of the failure, but referred the contact to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 50,000.

NHTSA ID

11699771

Incident

Sep 1, 2024

Mileage

50,000 mi

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that on several occasions while driving at various speeds in inclement weather including while driving in rain or slushy snow, the tailgate inadvertently opened. The vehicle was taken to a dealer where it was diagnosed and determined that the tailgate switch needed to be replaced due to water intrusion. The manufacturer was notified of the failure. The failure mileage was approximately 14,000.

NHTSA ID

11634282

Incident

Apr 29, 2021

Mileage

14,000 mi

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at 55 MPH, she noticed in the rearview mirror that her steel chainsaw was hanging from the vehicle and pulled over to the right side of the road. Once outside the vehicle, she noticed the tailgate opened independently. The vehicle was not diagnosed or repaired. The VIN was not included in NHTSA Campaign Number: 24V060000 (LATCHES/LOCKS/LINKAGES). The manufacturer was not notified of the failure. The failure mileage was 59,000.

NHTSA ID

11619987

Incident

Oct 13, 2024

Mileage

59,000 mi

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving approximately 75 MPH, the rear tailgate door erroneously opened. The contact stated that the failure had occurred on 4 separate occasions and items had fallen from the vehicle while in motion. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure. The failure mileage was 40,000.

NHTSA ID

11587995

Incident

Mar 15, 2023

Mileage

40,000 mi

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the tailgate opened independently. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the repairs were not covered. The contact stated that the failure was related to NHTSA Campaign Number: 24V060000 (Latches, Locks, and Linkages). The failure mileage was approximately 51,000.

NHTSA ID

11579974

Incident

Sep 1, 2023

Mileage

51,000 mi