2018 Buick Regal Tourx problems, complaints & recalls
Most-reported problem areas: Electrical System (2) · Wheels (1) · Structure:body (1)
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (286)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-04-01 · PIT3271Q · Service Bulletin/Repair Instructions
this preliminary information communicates information about how to determine if a wheel and tires size change is available.
Unknown Or Other 2026-03-09 · PIP6104 · Service Bulletin/Repair Instructions
this preliminary information communicates the steps on how to save a gds2 session log and upload to a technical assistance case in cx connect.
Unknown Or Other 2026-03-09 · PIP4902V · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Showing the 6 most recent of 286 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-12-28 · Service Brakes“front passenger brake hose failure by crimp …”
2024-12-30 · Engine“check engine light came on, reads reduced power and is causing problems accelerating…”
2024-12-23 · Unknown Or Other“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. …”
2024-07-31 · Lane Departure: Blind Spot Detection“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…”
2024-02-14 · Electrical System“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 assembl…”
2023-06-27 · Unknown Or Other“recall not completed? the previous gm buick dealership i went to, appears they will not or can not confirm that the buick june, 2022 recall (braking issue) work was done in october, 2022 at key chevrolet buick gm in south burlington, vt. i have contacted both the dealership and manufacturer (buick) current case # 9-10190079245 twice and buick (c…”
2022-11-17 · Power Train“@ 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 th…”
2022-10-11 · Service Brakes, Hydraulic · 27,000 mi“the contact owned a 2018 buick regal tourx. the contact stated while his daughter was driving approximately 55 mph and under wet misty road conditions, she saw that the vehicle ahead had stopped, she depressed the brake pedal in a panic stop. the vehicle did not stop and crashed into the rear of the other vehicle. the contact stated that his daught…”
2022-09-16 · Power Train:driveline:differential Unit · 27,483 mi“the contact owns a 2018 buick regal tourx. the contact stated that the driveline rear differential unit was leaking fluid onto the garage floor. the vehicle was taken to the dealer, and the dealer replaced the rear differential pinion seal. the manufacturer was not made aware of the failure. the failure mileage was approximately 27,483.…”
2021-08-24 · Electrical System“the backup grid randomly disappears on the rear view camera when the vehicle is in reverse. this happens at least 1-2 times every trip, and sometimes as often as every other time i put the transmission in reverse. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.