Vehicle Data Hub

2021 Chevrolet Suburban engine problems

98 complaints about engine have been filed for the 2021 Chevrolet Suburban, which is 37% of all its NHTSA complaints. It is the most reported problem area for this model year.

At a glance

Complaints
98 37% of this year's complaints
Typical mileage
104,000 miles 19 complaints with mileage
Crashes and fires
2 and 0
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When engine problems show up

Engine complaints by mileage, 2021 Chevrolet Suburban Complaints by odometer reading in 20,000-mile steps. The median is about 104,000 miles. 0k to 20k miles: 3 complaints 20k to 40k miles: 2 complaints 40k to 60k miles: 0 complaints 60k to 80k miles: 1 complaints 80k to 100k miles: 3 complaints 100k to 120k miles: 6 complaints 120k to 140k miles: 2 complaints 140k to 160k miles: 1 complaints 160k to 180k miles: 1 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 104,000 miles
Based on 19 complaints that include mileage. 26% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles3
20k to 40k miles2
40k to 60k miles0
60k to 80k miles1
80k to 100k miles3
100k to 120k miles6
120k to 140k miles2
140k to 160k miles1
160k to 180k miles1
180k to 200k miles0
200k+ miles0

What the data shows

Of the 19 engine complaints that report mileage, the median is about 104,000 miles, and 26% were reported before 60,000 miles.

These complaints mention 2 crashes.

What owners wrote

my car was hit on the side passenger back door in a parking lot while parked and nobody inside- had it look at by the chevrolet dealer- diagnosis is it needs a new engine??? make this make sense??? super disappointed with this car from the very beginning! will never buy chevrolet again

May 2024 Crash

The contact owns a 2021 Chevrolet Suburban. The contact stated that while his wife was driving at undisclosed speeds, there was an abnormally loud banging sound coming from the engine compartment. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the rods were bent, and the lifters needed to be replaced.

Reported at 109,069 miles, March 2025

Other problems reported for the 2021 Chevrolet Suburban

Engine problems in other years

Engine problems across all Chevrolet models