NHTSA has evaluated 6 variants of the 2021 GMC Sierra 1500 under the New Car Assessment Program. Overall Safety Ratings range from 4 to 5 stars depending on drivetrain configuration. Calculated rollover risk is rated at 19.1% (4★).
Laboratory barrier crash test scores and rollover resistance evaluations
Detailed laboratory breakdown across frontal driver/passenger, side barrier/pole, and rollover resistance
| Tested Drivetrain / Variant | Overall Score | Frontal Impact | Front Driver | Front Pass. | Side Impact | Side Barrier | Side Pole | Rollover Rating | Rollover Risk % |
|---|---|---|---|---|---|---|---|---|---|
| PU/CC 2WD NHTSA ID: #15334 | 4 / 5 | 4 / 5 | 4 / 5 | 4 / 5 | 5 / 5 | 5 / 5 | 5 / 5 | 4 / 5 | 19.1% |
| PU/EC 2WD NHTSA ID: #15332 | 5 / 5 | 4 / 5 | 5 / 5 | 4 / 5 | 5 / 5 | 5 / 5 | 5 / 5 | 4 / 5 | 19.1% |
| PU/RC 2WD NHTSA ID: #15330 | 5 / 5 | 4 / 5 | 5 / 5 | 4 / 5 | 5 / 5 | 5 / 5 | 5 / 5 | 4 / 5 | 19.1% |
| PU/CC 4WD NHTSA ID: #15364 | 4 / 5 | 4 / 5 | 4 / 5 | 4 / 5 | 5 / 5 | 5 / 5 | 5 / 5 | 4 / 5 | 19.8% |
| PU/EC 4WD NHTSA ID: #15362 | 5 / 5 | 4 / 5 | 5 / 5 | 4 / 5 | 5 / 5 | 5 / 5 | 5 / 5 | 4 / 5 | 19.8% |
| PU/RC 4WD NHTSA ID: #15360 | 5 / 5 | 4 / 5 | 5 / 5 | 4 / 5 | 5 / 5 | 5 / 5 | 5 / 5 | 4 / 5 | 19.8% |
NHTSA-verified advanced crash avoidance and driver assistance technology equipment status for 2021 GMC Sierra 1500
Explore owner problem reports, recall campaigns, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
NHTSA defect complaints breakdown across all vehicle subsystems and recurring symptoms.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2021 GMC Sierra 1500
Under the NHTSA New Car Assessment Program (NCAP), the 2021 GMC Sierra 1500 achieved an Overall Safety Rating of 4 to 5 stars across tested configurations.
The Overall Vehicle Score synthesizes laboratory crash barrier performance across frontal collision, side impact, and static rollover evaluations.
In laboratory testing, the 2021 GMC Sierra 1500 scored 4★ for Frontal Barrier Crash (35 mph head-on impact) and 5★ for Side Crash (barrier and pole impacts).
Frontal crash ratings evaluate head, neck, chest, and leg injury protection compared to vehicles of similar weight; side ratings evaluate barrier intersection impact and telephone pole intrusion.
NHTSA rates the 2021 GMC Sierra 1500 at 4★ for Rollover Resistance, with a calculated rollover probability of 19.1%.
Rollover resistance is determined by the vehicle's Static Stability Factor (track width divided by twice the center-of-gravity height) and dynamic steering maneuver performance.
NHTSA NCAP records evaluate recommended crash avoidance technologies including Forward Collision Warning (Not Standard), Lane Departure Warning (Not Standard), and Crash Imminent Braking (Not Standard).
NHTSA evaluates whether crash avoidance systems meet federal performance specifications on test tracks.
Crash test star ratings and driver assistance evaluations on this page are published by the National Highway Traffic Safety Administration (NHTSA) New Car Assessment Program (NCAP).
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.