NHTSA Complaint #11668498 — 2020 CHEVROLET SUBURBAN

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11668498
Vehicle	2020 CHEVROLET SUBURBAN
Component	ENGINE
Date of Incident	July 15, 2021
Date Filed	June 22, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NH

Consumer Description

The vehicle has 70,000 miles. The engine has failed and been replaced two times. We are on the third engine. The first time was in 2021 the second time was in 2024. I heard that others are having a similar issue. This is a 2020 .6.2L RST. The engine failed the first time while driving at high speed the car just stopped working. The second time we heard it failing and were able to drive it to the dealer where the engine fell apart in the parking lot The vehicle has had other issues too. Currently the wire harness has failed. This has happened several times but the dealer has not figured out a repair. Each time it’s failed while driving causing power steering to fail while driving. I don’t not trust my teen drivers around the vehicle or to drive.

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