2021 CHEVROLET BLAZER — Complaint #1755776
Open-data reference.
NHTSA Complaint about FORWARD COLLISION AVOIDANCE: CRASH IMMINENT BRAKING filed July 6, 2021
NHTSA complaint #1755776 (ODI reference 11423591) concerns a 2021 CHEVROLET BLAZER and was filed on July 6, 2021. The owner reports the failure occurred on April 27, 2021. The vehicle had 4,400 miles on the odometer at the time of the incident. The report was geocoded to Kansas based on the filer's self-reported location. The affected component is categorized as forward collision avoidance: crash imminent braking, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.
The filer flagged the following severity indicators: crash: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.
Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same CHEVROLET BLAZER cohort independently describe similar forward collision avoidance: crash imminent braking failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2021 CHEVROLET BLAZER shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2021 Chevrolet Blazer. The contact stated that while stopped at a railroad track, the vehicle independently stopped and went into crash mode while on the railroad tracks upon acceleration. The contact shifted the vehicle into reverse and then into park. Once the vehicle was placed into drive, the vehicle resumed normal operation. The vehicle was taken to a dealer where they replaced an unknown module and performed a software update. Despite the repair, the contact stated that the failure persisted. The contact also stated that while driving at 40 mph, the traction control warning light illuminated on the instrument panel as the steering power was reduced. The contact took the vehicle back to the same dealer and the mechanic replaced the rear differential, clutch, and control module. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 4,400
Complaint Details
| NHTSA Complaint ID | 1755776 |
| ODI Number | 11423591 |
| Date Filed | July 6, 2021 |
| Failure Date | April 27, 2021 |
| VIN | 3GNKBKRS5MS |
Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.
Read our methodology — how this data is sourced, computed, and verified.