2023 HYUNDAI SANTA FE — Complaint #1935917
Open-data reference.
NHTSA Complaint about ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE filed October 16, 2023
NHTSA complaint #1935917 (ODI reference 11550142) concerns a 2023 HYUNDAI SANTA FE and was filed on October 16, 2023. The owner reports the failure occurred on August 16, 2023. The vehicle had 1,108 miles on the odometer at the time of the incident. The report was geocoded to Texas based on the filer's self-reported location. The affected component is categorized as engine and engine cooling:engine:engine control module (ecu/ecm):software, 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 HYUNDAI SANTA FE cohort independently describe similar engine and engine cooling:engine:engine control module (ecu/ecm):software 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 HYUNDAI SANTA FE shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2023 Hyundai Santa Fe. The contact stated that on two separate occasions while driving at approximately 65 MPH, the vehicle decelerated. The check engine warning light illuminated, and a message displayed on the infotainment screen indicating âEngine System Emergency, Take Vehicle to the Nearest Dealerâ. The contact was able to veer the vehicle into a parking lot where it was idled. The vehicle was then taken to the dealer where the contact was informed that no appointments were available; however, the technician used a code reader that retrieved message: â5 Volts drop to the ECMâ. The contact stated that the technician then pressed the START/STOP button to restart the vehicle and reset the check engine warning light. The contact stated that he was able to drive the vehicle back to his location where he parked the vehicle. The following day he restarted the vehicle however, the failure recurred. The dealer was notified of the failure and the contact was advis
Complaint Details
| NHTSA Complaint ID | 1935917 |
| ODI Number | 11550142 |
| Date Filed | October 16, 2023 |
| Failure Date | August 16, 2023 |
| VIN | 5NMS54AL9PH |
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.