repaired · 2026 Q3
Engine: hard parts internal/mechanical
Risk. Engine failure increases the risk of a crash.
2021 Chevrolet SuburbanProblems, recalls & complaints
NHTSA has logged 208 owner complaints about the 2021 Chevrolet Suburban, most often about the engine. It is covered by 12 safety recalls, and for recall 24V-797 the manufacturer reports only 78% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 6, 2026. Updated daily. Photo: Kevauto, CC BY-SA 4.0.
Complaints by system
Where the 2021 Chevrolet Suburban has problems
208 complaints grouped by the system owners reported.
93Engine2 crash/fire/injury
40Power train
22Fuel/propulsion system1 crash/fire/injury
20Electrical system1 crash/fire/injury
11Engine and engine cooling
11Forward collision avoidance
9Fuel system, gasoline
8Service brakes
7Seat belts
4014 other systems6 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 93 | 2 |
| Power train | 40 | 0 |
| Fuel/propulsion system | 22 | 1 |
| Electrical system | 20 | 1 |
| Engine and engine cooling | 11 | 0 |
| Forward collision avoidance | 11 | 2 |
| Fuel system, gasoline | 9 | 0 |
| Service brakes | 8 | 2 |
| Seat belts | 7 | 0 |
| 14 other systems | 40 | 6 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
12 recalls
2021 Chevrolet Suburban recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2026 Q3
Control module: software
Risk. Rear wheel lock-up can increase the risk of a crash.
repaired · 2024 Q3
Lighting control module: software
Risk. Daytime Running Lights that do not deactivate as intended may cause a glare, reducing visibility and increasing the risk of a crash.
repaired · 2024 Q3
Seat belts: critical fasteners
Risk. A seat belt with a deformed rivet may not properly restrain an occupant, increasing the risk of injury during a crash.
Show 8 more recalls
repaired · 2023 Q4
Driveline: driveshaft
Risk. Driveshaft failure can cause a sudden loss of drive power, increasing the risk of a crash.
repaired · 2023 Q3
Fuel pump: control/drive module
Risk. An engine stall increases the risk of a crash.
repaired · 2023 Q2
Steering: steering control module
Risk. Increased steering effort, particularly at lower speeds, increases the risk of a crash.
repaired · 2023 Q2
Air bags: SRS malfunction warning lamp/light
Risk. The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.
repaired · 2023 Q1
Seat belts
Risk. A damaged seat belt can break during a crash, increasing the risk of injury to the occupant.
repaired · 2022 Q4
Seat belts
Risk. If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the…
repaired · 2022 Q4
Seat belts
Risk. If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury…
repaired · 2022 Q3
Seats
Risk. If an occupied front seat has loose or missing attachment bolts, it may move during a crash, increasing the risk of injury to the seated occupant.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Chevrolet.
Owner-reported costs
What owners say repairs cost
Dollar amounts owners wrote in their complaints when describing a repair or a quote. These are not price estimates; a system is shown only when at least 8 owners mentioned a cost.
Engine
9 owners mentioned a cost$13,000median
Middle half: $12,000 – $14,000
If a problem is covered by a recall, the dealer fixes it for free. Some manufacturers also reimburse owners who paid for a repair before a recall was announced.
Best & worst years
2021 vs. every other Suburban year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Suburban median. How we score
1136971830625452189499858457360414201634282440286301204129232922131061171481011185943222014284794420812713346
'81'82'83'84'85'86'87'88'89'90'91'92'93'94'95'96'97'98'99'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2021 Chevrolet Suburban safety ratings
2021 Chevrolet Suburban SUV 4WD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
★★★★★Overall rating
- Rollover: 3 stars (21.9% risk)
- Stability control: Standard
- Forward collision warning: Standard
- Lane departure warning: Optional
5 investigations
NHTSA defect investigations
Federal investigations that included the 2021 Chevrolet Suburban, and the recalls they led to.
- Loss of motive power due to engine failureOpen
- Loss of motive power due to engine failure post recall remedyOpen
- Air Bag MalfunctionNo recall
- Loss of motive power due to engine failureLed to recall 25V-274
- Loss of motive power due to engine failure post recall remedyNo recall
In owners' words
What Suburban owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
The contact owns a 2021 Chevrolet Suburban. The contact stated that while his wife was driving 40 MPH, the vehicle stalled. An unknown warning light was illuminated during the failure. The vehicle was towed to an independent mechanic and was diagnosed with fuel pump failure. Additionally, the…
On August 25, 2026, I was driving a chevrolet 2021 with less than 60K miles on it on a double lane road when I came to a red light, the car did not move when the light turned green, I put the car on park then drive again and it completely shut down. Prior to this there was no lights showing any…
In the evening I was driving home locally and noticed a slight lurch in the car when coming to a complete stop at the stoplight. From there I proceeded into my neighborhood. There was a sudden and very loud bang sound like metal and an explosion. Immediately the engine failed and my vehicle stopped…
Own a 2021 Suburban?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.