Problems · NHTSA complaints

2018 Buick Regal Tourx problems

Owners filed 14 complaints about the 2018 Buick Regal Tourx with NHTSA between Feb 2019 and Dec 2025. The most-cited component is engine (4).

Complaints
14
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine4
  2. Electrical system3
  3. Service brakes2
  4. Back over prevention2
  5. Power train2
  6. Lane departure1
  7. Service brakes, hydraulic1
  8. Structure1
  9. Wheels1
  10. Other / unknown4

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 Oct 30, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20192
20202
20211
20223
20231
20244
20251

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Engine

4 reports
“My check engine light came on along with my traction control light, and "Reduced Engine Power" popped up. This is connected to a recall on this vehicle for a connector at the throttle pedal.”
Owner complaint to NHTSAFiled Dec 23, 2024Unknown or other, EngineODI 11632118

Electrical system

3 reports
“Shift to park message in DIC along with audible warning, even though car in park. Will not allow you to lock car, will run down battery. Have to play with shifter to stop. Eventually couldn't get it to stop. Per dealer "Possible intermittent failure of the park switch in transmission shift control. Need to replace transmission shift control assembly." Car out of warranty, cost was $726.21. Dealer said this was an updated part.”
Owner complaint to NHTSAFiled Feb 14, 2024Electrical systemODI 11571801

Service brakes

2 reports
“Front Passenger Brake Hose Failure by Crimp”
Owner complaint to NHTSAFiled Dec 28, 2025Service brakesODI 11707350

Back over prevention

2 reports
“Rear camera and cross traffic warning system malfunctions randomly, working less than half the time. When the vehicle is put in reverse the system and camera often do not work and issue a notice that it needs serviced. On several occasions it did not warn me of a person behind my vehicle or another vehicle behind me. I have avoided accidents but the system is not working. I have been reading about it and it is common among this vehicle, many complaining that this is the worst rear collision camera on a car. The screen is just black, sometimes with grid lines and sometimes without. On the rare occasion the camera turns on the grid lines often disappear although they are not turned off.”
Owner complaint to NHTSAFiled Jul 31, 2024Lane departure, Back over preventionODI 11605697

Power train

2 reports
“@ 40,000 miles The Buick Regal Tour X is making a loud humming noise from shifting gears from the transmission and a noise near the engine, when slowing down to 5 mph, loud humming noise can be heard. I took the car to GM service department and the mechanic told me he couldn't find anything wrong. I told him Yet, Yet?? I want to be proactive on this transmission issue.”
Owner complaint to NHTSAFiled Nov 17, 2022Power train, EngineODI 11494054

Lane departure

1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.