Problems · NHTSA complaints
2026 Buick Enclave problems
Owners filed 3 complaints about the 2026 Buick Enclave with NHTSA between Jun 2026 and Oct 2026. The most-cited component is service brakes (2).
Complaints
3
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Service brakes2
- Power train1
- Engine1
- Fuel/propulsion system1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 8, 2026NHTSA vehicle page
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Service brakes
2 reports
“The contact owns a 2026 Buick Enclave. The contact stated that while driving at approximately 20-60 MPH, there was an abnormal squealing sound coming from the vehicle. The dealer was contacted and determined that the brakes were inoperable. The Customer Service Representative was contacted and opened a case; however, the case was denied. The approximate failure mileage was 5.”
Power train
1 report
“Driving home from work on interstate, 2 month old 2026 Buick enclave jolted and shut off completely while going 65mph. Barely pulled over safely to the left side (Oklahoma drivers). Restarted car, check engine light illuminated with messages of reduced engine power (limp mode up to 35mph) while stuck on highway, traction control and esc disabled. Was able to get off highway and limp to nearest GM dealer. They performed diagnostics 3 days later and replaced the fuel rail pressure sensor. It did not fix it. More codes according to dealer and they are involving engineers. Moving next week on military orders and car is still being worked on with no estimate of time to complete. Insanely concerning safety hazard for a brand new car to shut off on the highway. Could have died or killed others in accident. Unable to invoke lemon law yet but not comfortable driving the car again especially across the country on limited time.”
Engine
1 report
Fuel/propulsion system
1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 8, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.