2021 Chevrolet Suburban
The 2021 Chevrolet Suburban is sold in the U.S. as a gas and diesel midsize or large SUV with 10 EPA-rated configurations. The most efficient version, the Suburban 2WD, is EPA-rated at 23 mpg combined. NHTSA lists 12 recall campaigns for this model year, which gives it a Safety Signal grade of F. Owners have filed 190 complaints, most often about the engine. NHTSA crash-tested it at 4 stars overall.
Specs & fuel economy
Source: EPA fueleconomy.gov| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| Suburban 2WD | Gas | RWD | 5.3L 8-cyl | 16 | 20 | 18 | $3,450 |
| Suburban 2WD | Gas | RWD | 6.2L 8-cyl | 15 | 20 | 17 | $4,550 |
| Suburban 2WD | Gas | RWD | 5.3L 8-cyl | 15 | 20 | 17 | $3,650 |
| Suburban 4WD | Gas | 4WD | 5.3L 8-cyl | 15 | 19 | 17 | $3,650 |
| Suburban 2WD | Gas | RWD | 6.2L 8-cyl | 14 | 20 | 16 | $4,850 |
| Suburban 4WD | Gas | 4WD | 6.2L 8-cyl | 14 | 19 | 16 | $4,850 |
| Suburban 4WD | Gas | 4WD | 6.2L 8-cyl | 13 | 19 | 16 | $4,850 |
| Suburban 4WD | Gas | 4WD | 5.3L 8-cyl | 15 | 19 | 16 | $3,900 |
| Suburban 2WD | Diesel | RWD | 3.0L 6-cyl turbo | 21 | 27 | 23 | $3,900 |
| Suburban 4WD | Diesel | 4WD | 3.0L 6-cyl turbo | 20 | 26 | 22 | $4,050 |
*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42620, 42618, 44037, 42629, 44035, 42627, 44044, 44046, 43494, 43596.
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Recalls (12)
Source: NHTSA recall databasePower Train
N242454440Exterior Lighting
N222382220Seat Belts
N222372380Power Train
N212351030Fuel System, Gasoline
N212332040Steering
N212333900Electrical System
N212338110Seat Belts
N202313000Seat Belts
N202322230Seat Belts
N202314670Seats
N202312720NHTSA defect investigations
Engine — Loss of motive power due to engine failure post recall remedy open
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001. This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change o
Opened Aug 20, 2026 · action EA26005
Engine — Loss of motive power due to engine failure post recall remedy closed
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001. This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change o
Opened Jan 16, 2026 · closed Aug 20, 2026 · action RQ26001
Engine — Loss of motive power due to engine failure open
The Office of Defects Investigation (ODI) has received 1,157 reports of engine bearing failure failures in the L87 6.2L engine produced by General Motors (GM). Of the 1,157 reports received, 173 are outside of the scope of recall 25V-274. These engines are installed in Model Years (MY) 2019–2024 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2021-2024MY Chevrolet Suburban and Tahoe, GMC Yukon/Yukon XL, and Cadillac Escalade/Escalade ESV vehicles. The subject engine failures were investigated as part of a Preliminary Evaluation (PE25001). GM determined that these engine failures were due to multiple supplier manufacturing and quality issues. GM issued recall 25V-274 to address the supp
Opened Oct 23, 2025 · action EA25007
Engine — Loss of motive power due to engine failure closed
On January 16, 2025, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE25001 after receiving complaints and field reports concerning engine failures in MY2019-2024 GM’s full-size truck and SUV T1XX platform equipped with the L87 6.2L V8 engine. These complainants alleged engine bearing failures resulting in knocking and growling noises from the engine’s bottom end and in some cases more severe consequences such as broken connecting rods leading to engine damage, or engine failure. If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. On April 24, 2025, GM issued recall 25V-274 to address the concern with L8
Opened Jan 16, 2025 · closed Oct 23, 2025 · action PE25001
Air Bags:Srs Malfunction Warning Lamp/Light — Air Bag Malfunction closed
On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models), XT4 and MY 2021 Escalade, Suburban, Tahoe, Yukon SUVs.Technical Service Bulletin (TSB) 21-NA-005, issued in March 2021, addresses air bag MIL illumination with diagnostic trouble codes (DTCs) B0001-1B or B0012-0D. It cites rust particles in the connection terminal interface of the driver air bag
Opened Apr 9, 2021 · closed Aug 24, 2023 · action PE21010
Owner complaints
Source: NHTSA complaint database6 involved a crash · 1 a fire · 5 injuries · 0 deaths reported
Filed per year: 2021: 14 · 2022: 13 · 2023: 18 · 2024: 21 · 2025: 72 · 2026: 52
Most-cited components
What owners describe
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Crash ratings
Source: NHTSA NCAP| Configuration | Overall | Frontal | Side | Rollover | Rollover risk |
|---|---|---|---|---|---|
| SUV 2WD | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★☆☆ | 21% |
| SUV 4WD | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★☆☆ | 22% |
NHTSA New Car Assessment Program. Standard driver-assist: forward collision warning, automatic emergency braking.
Other Suburban model years
2026 Chevrolet Suburban
3 recalls · 13 complaints
A2025 Chevrolet Suburban
1 recalls · 30 complaints
B2024 Chevrolet Suburban
2 recalls · 40 complaints
C2023 Chevrolet Suburban
4 recalls · 138 complaints
C2022 Chevrolet Suburban
4 recalls · 119 complaints
F2020 Chevrolet Suburban
4 recalls · 44 complaints
D2019 Chevrolet Suburban
3 recalls · 77 complaints
D2018 Chevrolet Suburban
4 recalls · 81 complaints
F2017 Chevrolet Suburban
5 recalls · 141 complaints
F2016 Chevrolet Suburban
6 recalls · 219 complaints
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.
EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.