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ProblemsByVin File / 2021-CHEVROLET-SUBURBAN NHTSA data synced 9 hours ago
2021 · Chevrolet

Chevrolet Suburban problems

173 owner complaints and 8 active recall campaigns on file. Here's the breakdown — what's serious, what's noise, what a working mechanic would actually do about it.

0 5 10
Reliability score
6.0 / 10

Average for the segment. Some recurring trouble spots worth knowing about.

0
Critical
8
Severe
0
Moderate
Should you avoid this 2021 Suburban?
Acceptable — with caveats

Worth owning if you verify the specific issues below before you buy.

Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.

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Top trouble spots 8 categories with 3+ complaints

engine
63 reports · fails ~73,955 mi · avg $3,100
moderate
powertrain
30 reports · fails ~78,200 mi · avg $2,500
moderate
electrical
12 reports · fails ~88,000 mi · avg $850
severe
brakes
7 reports · fails ~30,000 mi · avg $450
severe
fuel system
7 reports · fails ~58,143 mi · avg $1,200
moderate
lighting
6 reports · fails ~62,000 mi · avg $250
moderate
airbags
4 reports · fails ~9,500 mi · avg $1,100
severe
wheels
4 reports · avg $400
moderate
Buyer's checklist
Going to look at one? Use the pre-purchase inspection list.
Generated from this 2021 Suburban's actual NHTSA complaint history — every item points at a documented failure pattern on this exact vehicle, not generic walkaround filler.
See the checklist ->
Honest Calculator
Should you buy an extended warranty on this 2021 Suburban?
We pulled the math: risk-weighted exposure, typical contract cost, and our verdict on whether coverage pencils out for this specific vehicle.
See the calculator ->

What owners are saying recent NHTSA-filed complaints · verbatim

2021 Suburban · engine
The car was driving at 60 MPH on a regular commute to work and the car was stalling and shaking and soon after the check engine light came on with multiple issues.
2021 Suburban · fuel system
The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 45-55 MPH, the vehicle lost motive power inadvertently. There was no warning light illuminated. The contact was able to veer to the side of the road. The vehicle failed to restart and was towed to the…
12/20/2023 · at 90,000 mi · NHTSA ODI #11561170.0 · see fuel system pattern →
2021 Suburban · lighting
The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 45 MPH, the driver’s side low-beam headlight was pointing inward, affecting his visibility of the roadway. The contact stated that the failure later occurred with the passenger’s side low-beam…
12/17/2021 · at 62,000 mi · NHTSA ODI #11444175.0 · see lighting pattern →
2021 Suburban · engine
Vehicle experienced sudden engine malfunction including rough idle, hard misfire, and flashing check engine light. Vehicle was diagnosed with a collapsed lifter and internal engine failure. Metallic debris was found in the engine oil, including silver and gold/bronze particles…
View all 173 owner complaints →
Had a problem with your 2021 Chevrolet Suburban? File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.

Estimate your repair exposure

Drag to your current mileage. Numbers are derived from this vehicle's complaint history.

0 mi 200k mi
At 80,000 miles
Likely repair cost in next 24 months
$0

Active recalls showing 3 of 8

severe NHTSA 22V036000 January 27, 2022

General Motors, LLC (GM) is recalling certain 2021 GMC Yukon, Yukon XL, Cadillac Escalade, Escalade ESV, Chevrolet Suburban, and Chevrolet Tahoe vehicles

Driveshaft failure can cause a sudden loss of drive power, increasing the risk of a crash.

Fix: Dealers will replace the left and/or right rear driveshaft assemblies, free of charge. Owner notification letters were mailed on March 14, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212351030.
severe NHTSA 20V735000 November 25, 2020

General Motors LLC (GM) is recalling certain 2021 Chevrolet Suburban and Tahoe and GMC Yukon and Yukon XL vehicles

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.

Fix: GM will notify owners, and dealers will inspect the seat attachments for both front seats and install attachment bolts as needed, free of charge. The recall began December 21, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC customer service at 1-888-988-7267. GM's number for this recall is N202312720.
severe NHTSA 24V797000 October 24, 2024

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines

Rear wheel lock-up can increase the risk of a crash.

Fix: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
View all 8 recalls →

Under investigation 2 open at NHTSA

RQ Engine · opened January 2026

NHTSA has an open defect investigation covering this vehicle — the step that can precede a recall, not a finding of fault. RQ26001 on NHTSA →

EA Engine And Engine Cooling › Engine · opened October 2025

NHTSA has an open defect investigation covering this vehicle — the step that can precede a recall, not a finding of fault. EA25007 on NHTSA →

How NHTSA investigations work, and what's open now →

Common questions

Is the 2021 Chevrolet Suburban reliable?

It's got known weak points. With a reliability score of 6.0 out of 10 based on 173 owner complaints filed with NHTSA, the 2021 Chevrolet Suburban has a higher-than-average rate of reported issues. The areas to watch are listed above. Whether it's worth owning depends on price, condition, and how much repair exposure you can absorb.

Should you avoid the 2021 Chevrolet Suburban?

The 2021 Chevrolet Suburban is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 6.0/10 — around the segment average; 8 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.

What's the most common problem on the 2021 Chevrolet Suburban?

Based on NHTSA records, the most-reported issue is engine, with 63 complaints filed. Typical failure occurs around 73,955 miles. Average repair cost runs about $3,100 at an independent shop.

What's the most expensive thing that goes wrong?

The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Typical failure occurs around 73,955 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.

How do I check if my Chevrolet Suburban has open recalls?

Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.

Is an extended warranty worth it on a 2021 Chevrolet Suburban?

Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 173 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.

Related

Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database, last synced 9 hours ago. Verify the raw federal record at nhtsa.gov/vehicle/2021/Chevrolet/Suburban. Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics. We are not affiliated with Chevrolet. Some links on this page are affiliate links and we may earn a commission if you complete a quote or purchase.
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