Verified government source

NHTSA complaint #11730120

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

2020 BUICK ENCLAVE

Manufacturer

General Motors, LLC

Components

ENGINE AND ENGINE COOLING

Dates

Incident: 04/06/2026
Filed: 04/09/2026

Owner complaint summary

The contact owns a 2020 Buick Enclave. The contact stated while driving at an undisclosed speed, there was an abnormal ticking sound coming from under the hood. Additionally, there was an abnormal exhaust odor inside the cabin of the vehicle. The vehicle was taken to the dealer, who determined that the passenger’s side flex pipe bracket had cracked, causing damages to the catalytic converter. The contact was informed that the flex pipe and catalytic converter needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was 52,580.

This is an owner complaint filed with NHTSA (ODI #11730120). It is not automatically an official recall, investigation outcome, or manufacturer admission unless the complaint text itself describes one.

Official record ID (ODI): 11730120. 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.