There are 2 owner-reported electrical system complaints for the 2020 Chevrolet Suburbanin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2020 Chevrolet Suburban. The contact stated that the vehicle experienced electrical failures that caused several safety and powered components to turn off and on. The contact stated that the vehicle occasionally lost power steering or windshield wiper functionality and would start functioning without having been engaged manually. The contact stated that the instrument cluster occasionally went black. The contact took the vehicle to a local dealer, who diagnosed the vehicle and advised the contact of Technical Service Bulletin: 18-NA-161, which addressed the electrical failure. The vehicle was repaired. The manufacturer was not informed of the failure. The contact stated that the electrical failure described in TSB: 18-NA-161 should have been a national recall due to the safety factors of the systems affected. The failure mileage was approximately 85,000.
Odometer Fraud. The contact purchased a 2020 Chevrolet Suburban. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 88,000 and at the time of registration, it was discovered that the mileage was 252,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026