Verified government source

NHTSA complaint #11761869

This page summarizes an official U.S. National Highway Traffic Safety Administration owner complaint. Use the verification links below to confirm the record directly with NHTSA.

Vehicle

2023 BUICK ENCLAVE

Manufacturer

General Motors, LLC

Components

POWER TRAIN

Dates

Incident: 07/03/2026
Filed: 09/03/2026

Owner complaint summary

The contact owns a 2023 Buick Enclave. The contact stated that while driving 70 MPH, the transmission unexpectedly downshifted to 3rd gear and the vehicle decelerated. The contact stated that the vehicle went into LIMP Mode. Additionally, the computer system took control of the vehicle. The contact stated that the failure had occurred while driving in the center lane on a busy highway. The vehicle was driven to a safe location. The vehicle was towed to the dealer and was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was repaired. The failure mileage was approximately 30,000.

This is an owner complaint filed with NHTSA (ODI #11761869). It is not automatically an official recall, investigation outcome, or manufacturer admission unless the complaint text itself describes one.

Official record ID (ODI): 11761869. This page is the human-readable source link used across afterwarranty. The raw JSON link proxies NHTSA's public API for machine verification; prefer this page when reading the complaint.