2020 Chevrolet Suburban problems
NHTSA has received 64 complaints about the 2020 Chevrolet Suburban, and 28% of them involve engine. Next are drivetrain & axles (16%) and electrical system (12%).
At a glance
- Complaints
- 64 filed with NHTSA
- Most reported
- Engine 28% of complaints
- Crashes and fires
- 3 and 1
- Injuries and deaths
- 0 and 0
- Typical mileage
- 3,000 miles 18 complaints with mileage
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
When problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 10 |
| 20k to 40k miles | 1 |
| 40k to 60k miles | 1 |
| 60k to 80k miles | 0 |
| 80k to 100k miles | 5 |
| 100k to 120k miles | 0 |
| 120k to 140k miles | 0 |
| 140k to 160k miles | 0 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 1 |
What the data shows
Of the 18 complaints that include odometer readings, half describe a problem before roughly 3,000 miles.
Safety-related details: 3 complaints mention a crash; 1 complaint mentions a fire. Its complaints are less severe on average than those of 82% of model years in our database.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2020 ranks 30th most-complained-about out of 35 model years of the Chevrolet Suburban with enough data (58 complaints in that window). It is also covered by 4 safety recall campaigns.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
I put vehicle in Chevy dealership 7/8/24 for cold start knocking sound. Dealers called 2 days later said it was defective lifter issue on the 6.2 liter GM engine.Dealer ordered new engine.on 8/23/24 while test driving vehicle with new engine in it while driving on the highway a fire started under the engine. I was told by dealer that people were telling the driver the vehicle was on fire. He abandoned the vehicle on the highway as it burned up inside and outside. Fire trucks put the fire out.Vehicle is total loss.
None of the airbags did not deploy during an accident. Vehicle was moving forward and hit on the drivers side front quarter by another vehicle doing approximately 45MPH. My suburban was turning left onto a highway.
Have had starter problems since we purchased the vehicle. Starter intermittently loudly grinds when pressed 2-3 times a week and won’t start. Dealership could repeat problem once, but never fixed it. Took vehicle in at least half a dozen times. Never fixed. Car also makes an odd humming when gas is applied. This week, car started and died after driving a foot. Then car wouldn’t start at all. Brakes stiffened up and wouldn’t compress without substantial effort. Everything resolved on its own within 30 minutes.
2020 chevrolet suburban. Upon vehicle start: steering assist, trailer brake system, stability track all inop. Tachometer and speedometer inop. No reverse gear. When in drive, only first gear obtainable and manual shift mode inop. Seat heat inop. Turned off and restarted approx five times and issues remained. Upon sixth restart issues no longer present. Drove 15 miles home. Vehicle sat 2 hours, then restarted and operated normally for 1/2 hour operation, then turned off.
The contact owns a 2020 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the vehicle stalled. A passerby helped the contact to push the vehicle into a parking lot. There was no warning light illuminated. The contact left the vehicle in the parking lot. The following day, the vehicle restarted as intended. The contact stated that on a separate occasion, the vehicle failed to start.