AutoUtility currently tracks 42 official NHTSA owner defect complaints for the 2020 Chevrolet Suburban. Engine & Cooling issues are the most frequently reported category, appearing in 14 complaints (33.3% of submitted records). Among these NHTSA complaint records, 2 filings cite a crash, 1 cites a fire.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
14 owner complaints submitted to NHTSA ODI for this subsystem.
10 owner complaints submitted to NHTSA ODI for this subsystem.
8 owner complaints submitted to NHTSA ODI for this subsystem.
5 owner complaints submitted to NHTSA ODI for this subsystem.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"There is a safety recall on GM’s 6.2L V8 L87 engine model years 2021-2024. My vehicle is a 2020 Suburban with a 6.2L V8 L87 engine. My engine recently experienced the same failure as cited in the recall, but because it is outside the 2021-2024 window it is not covered by this recall. I ask that the..."
"Transmission fail Drives fine then stops accelerating"
"I just received an email with this the following: NHTSA Recall ID Number :26V289, warning about front or rear wheel lockup. Per the NTHSA website, there is no recall. The email came from: [EMAIL REDACTED]"
"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..."
"Driving on interstate and gradual onset of clicking/knocking. Within 5 minutes complete loss of propulsion and throttle. RPM went to zero. Oil pressure/temperature/engine lights all fine. Dealership states "catastrophic engine failure." My family was in the vehicle. Fortunately still had power..."
Reported defect complaint volume across sibling model years (2015–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Chevrolet Suburban | 428 | 21 | 11 | View 2015 Problems → |
| 2016 Chevrolet Suburban | 219 | 9 | 6 | View 2016 Problems → |
| 2017 Chevrolet Suburban | 141 | 7 | 5 | View 2017 Problems → |
| 2018 Chevrolet Suburban | 81 | 3 | 4 | View 2018 Problems → |
| 2019 Chevrolet Suburban | 77 | 2 | 3 | View 2019 Problems → |
| 2020 Chevrolet Suburban Current Page | 42 | 2 | 4 | Current |
| 2021 Chevrolet Suburban | 186 | 6 | 12 | View 2021 Problems → |
| 2022 Chevrolet Suburban | 111 | 4 | 4 | View 2022 Problems → |
| 2023 Chevrolet Suburban | 134 | 1 | 4 | View 2023 Problems → |
| 2024 Chevrolet Suburban | 38 | 1 | 2 | View 2024 Problems → |
| 2025 Chevrolet Suburban | 27 | 0 | 1 | View 2025 Problems → |
| 2026 Chevrolet Suburban | 0 | 0 | 3 | View 2026 Problems → |
Complete distribution of consumer defect reports across all 24 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Powertrain NHTSA category: POWER TRAIN | 7 | 0 | 0 | 0 | 0 |
| Engine NHTSA category: ENGINE | 5 | 0 | 1 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 4 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 2 | 1 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE | 2 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SEATS,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING | 1 | 0 | 0 | 0 | 0 |
| ENGINE,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| SERVICE BRAKES,FUEL/PROPULSION SYSTEM | 1 | 1 | 0 | 0 | 0 |
| STEERING,ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC) | 1 | 0 | 0 | 0 | 0 |
| STEERING,ELECTRICAL SYSTEM,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,POWER TRAIN,ELECTRONIC STABILITY CONTROL (ESC) | 1 | 0 | 0 | 0 | 0 |
| Tires NHTSA category: TIRES | 1 | 0 | 0 | 0 | 0 |
| Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Visibility & Wipers NHTSA category: VISIBILITY/WIPER | 1 | 0 | 0 | 0 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2020 Chevrolet Suburban
In official NHTSA consumer records, the most frequently cited issue area for the 2020 Chevrolet Suburban is Engine & Cooling, appearing in 14 records (33.3% of submitted filings).
Secondary reported categories include Powertrain & Transmission (10) and Electrical System (8).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 42 consumer defect complaints and 4 safety recall campaigns for the 2020 Chevrolet Suburban.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Among consumer complaint records on file with NHTSA for the 2020 Chevrolet Suburban, 2 filings cite a crash, 1 cite smoke or fire, and 0 report one or more injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.