2023 CHEVROLET TRAILBLAZER — Complaint #2146397
Open-data reference.
NHTSA Complaint about POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT filed November 6, 2025
NHTSA complaint #2146397 (ODI reference 11697910) concerns a 2023 CHEVROLET TRAILBLAZER and was filed on November 6, 2025. The owner reports the failure occurred on October 13, 2025. The vehicle had 40,000 miles on the odometer at the time of the incident. The report was geocoded to Florida based on the filer's self-reported location. The affected component is categorized as power train:automatic transmission:lever and linkage:column shift, 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 TRAILBLAZER cohort independently describe similar power train:automatic transmission:lever and linkage:column shift 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 2023 CHEVROLET TRAILBLAZER shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that after shifting into park(P), there was an abnormal beeping sound coming from the vehicle. There was no warning light illuminated. The contact shifted into neutral(N) and then back into park(P) to stop the beeping sound. The contact stated that while the vehicle was shut off and in park(P); the gear shifter independently shifted out of park(P) into reverse(R). The vehicle did not move backwards; however, the contact was able to shift back to the park(P) without further failures. The vehicle was taken to the dealer, and the contact was provided with the cost for a diagnostic test. The manufacturer was not notified of the failure, despite multiple attempts for assistance. The vehicle was not repaired. The failure mileage was approximately 40,000.
Complaint Details
| NHTSA Complaint ID | 2146397 |
| ODI Number | 11697910 |
| Date Filed | November 6, 2025 |
| Failure Date | October 13, 2025 |
| VIN | KL79MRSL4PB |
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.