2024 TOYOTA BZ4X — Complaint #2100560
Open-data reference.
NHTSA Complaint about STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS filed June 14, 2025
NHTSA complaint #2100560 (ODI reference 11666897) concerns a 2024 TOYOTA BZ4X and was filed on June 14, 2025. The owner reports the failure occurred on June 6, 2025. The report was geocoded to New York based on the filer's self-reported location. The affected component is categorized as structure:frame and members:underbody shields, 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 TOYOTA BZ4X cohort independently describe similar structure:frame and members:underbody shields 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 2024 TOYOTA BZ4X shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
On [XXX], while driving through a common roadway puddle at a safe speed, the front bumper on my BZ4X detached from the undercarriage shield and tore away from the clips. This type of damage is clearly disproportionate to the conditions and reflects a deficiency in structural design. After researching this issue, I found that many other BZ4X owners have experienced the same bumper detachment and undercarriage shield failure under minimal driving conditions. These consistent reports indicate a widespread manufacturing defect, not isolated driver error or negligence. For example: On multiple owner forums and complaint sites like NHTSA.gov and Reddit, BZ4X owners have documented similar instances of bumpers tearing off from puddles or light snow. A widely circulated post on Redditâs r/Toyota described a nearly identical issue, stating that âdriving through a shallow puddle at a slow speed caused the bumper to rip off like paper.â The issue has even reached automotive press outlets
Complaint Details
| NHTSA Complaint ID | 2100560 |
| ODI Number | 11666897 |
| Date Filed | June 14, 2025 |
| Failure Date | June 6, 2025 |
| VIN | JTMABACA8RA |
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.