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2018 Buick Regal TourX Owner Complaints

Updated May 30, 2026
Daniel Wilson
2018 Buick Regal TourX Owner Complaints

Complaint Summary

The 2018 Buick Regal TourX has 21 reported complaints.

  • Top issues involve unknown or other and engine.

Reliability Score

Reliability Score

8.8/ 10

Based on 21 complaints

Most Frequent Issues

UNKNOWN OR OTHER

4 19%

ENGINE

4 19%

ELECTRICAL SYSTEM

3 14.3%

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

2 9.5%

WHEELS

1 4.8%

Quick Insights

  • The top category is UNKNOWN OR OTHER, accounting for 19% of all complaints.

  • Owners have reported issues across 12 distinct vehicle systems.

  • Note: Complaint data reflects owner reports and may not always indicate a verified defect. Compare with Recalls and TSBs for a complete picture.

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Complaint Summary

What owners keep reporting on the 2018 Buick Regal TourX

The 2018 Buick Regal TourX has 21 owner complaints in this dataset. UNKNOWN OR OTHER is the most common complaint category, representing about 19% of the reports shown here.

Most common complaint categories

The top complaint groups for the 2018 Buick Regal TourX are UNKNOWN OR OTHER (4), ENGINE (4), ELECTRICAL SYSTEM (3).

Are these complaints a serious red flag?

Potentially. 9 complaint reports involve higher-attention systems like brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection.

What should buyers inspect on a used 2018 Buick Regal TourX?

Start with the top complaint systems, compare them against the recall report, then inspect service records for evidence that those same areas were already repaired or monitored.

Read the full buyer guideRecall report and remedy notesMaintenance costs and intervals2019 Regal TourX complaints2020 Regal TourX complaints

Detailed Complaint Log

Showing 12 of 12 systems

UNKNOWN OR OTHER

4 Reports19% of total

Previewing the first 2 complaint summaries.

THE BACKUP CAMERA DISPLAY DOES NOT WORK PROPERLY. WHEN THE VEHICLE IS IN REVERSE, THE BACKUP GRID LINES DO NOT APPEARS AND THE WARNING TO DON'T APPEAR (ON THE DISPLAY). EFFECTIVELY IT JUST ACTS AS A CAMERA. THIS HAPPENS 80% OF THE TIME THAT I AM IN REVERSE. THIS HAS BEEN AN ISSUE SINCE THE DATE I PURCHASED THE CAR (9.29.18).

2/1/2019

WHEN AUTO START/STOP TURNS ON THE AUX PUMP THAT PUMPS COOLANT INTO THE CABIN TO CONTINUE TO HEAT MAKES THE MOST ANNOYING SOUND IN THE WORLD. GM STATES THAT IT'S NORMAL BUT, UNDER NORMAL OPERATION YOU CAN BARELY HEAR THE PUMP. WHEN IT MALFUNCTIONS YOU CAN HEAR IT DOWN THE BLOCK. BUT SURE, THAT'S NORMAL, OF COURSE IT IS. THAT'S WHY THEY CHANGED THE DESIGN OF THE AUX PUMP FOR 2020 BUT WON'T ADMIT FAULT. GM REFUSING TO CHANGE THE AUX PUMP, I HAD TO BUY IT AND DO THE WORK MYSELF. BUICK WARRANTY IS USELESS.

9/22/2020

2 more complaints are available in this category.

ENGINE

4 Reports19% of total

Previewing the first 2 complaint summaries.

@ 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.

11/17/2022

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 (Corporate) is trying to contact the Key GM Buick Dealership to confirm the Recall work has been done and if done, then remove the still pending Recall notice that is still showing the Recall still needs to be done.

6/27/2023

2 more complaints are available in this category.

ELECTRICAL SYSTEM

3 Reports14% of total

Previewing the first 2 complaint summaries.

WHEN AUTO START/STOP TURNS ON THE AUX PUMP THAT PUMPS COOLANT INTO THE CABIN TO CONTINUE TO HEAT MAKES THE MOST ANNOYING SOUND IN THE WORLD. GM STATES THAT IT'S NORMAL BUT, UNDER NORMAL OPERATION YOU CAN BARELY HEAR THE PUMP. WHEN IT MALFUNCTIONS YOU CAN HEAR IT DOWN THE BLOCK. BUT SURE, THAT'S NORMAL, OF COURSE IT IS. THAT'S WHY THEY CHANGED THE DESIGN OF THE AUX PUMP FOR 2020 BUT WON'T ADMIT FAULT. GM REFUSING TO CHANGE THE AUX PUMP, I HAD TO BUY IT AND DO THE WORK MYSELF. BUICK WARRANTY IS USELESS.

9/22/2020

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.

8/24/2021

1 more complaint is available in this category.

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

2 Reports10% of total

Previewing the first 2 complaint summaries.

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.

8/24/2021

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.

7/31/2024

WHEELS

1 Report5% of total

Previewing the first 1 complaint summaries.

I OWN A 2018 BUICK REGAL TOURX ESSENCE THAT IS OUTFITTED WITH CONTINENTAL PRO CONTACT TX P235/50R18 TIRES. ON 11/6/2019, I FOUND THAT THE FRONT RIGHT (PASSENGER) SIDE TIRE HAD LITERALLY BLOWN OUT AFTER SITTING OVERNIGHT THE GARAGE. IT LOOKED LIKE TIRE HAD EXPLODED. MILEAGE WAS 7357 AT THE TIME. I AM 85 YEARS OLD AND I AM THANKFUL THAT THIS DID NOT OCCUR WHILE DRIVING AT A HIGH SPEED. CAR WAS PICKED UP AND REPAIRED BY THE ORIGINAL DEALER.

12/11/2019

STRUCTURE:BODY

1 Report5% of total

Previewing the first 1 complaint summaries.

SIDE SKIRTS ON THE CAR ARE HELD BY DOUBLE SIDED TAPE. THE TAPE HAS BEEN REAPPLIED BY THE DEALERSHIP TWICE ALREADY AND THEY'RE STILL LETTING GO. WHY WOULD A CAR MANUFACTURER TAPE ON THEIR MOLDINGS AND NOT EVEN PUT ON A CLIP?

9/22/2020

POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

1 Report5% of total

Previewing the first 1 complaint summaries.

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.

9/16/2022

SERVICE BRAKES, HYDRAULIC

1 Report5% of total

Previewing the first 1 complaint summaries.

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 daughter did not notice any warning lights being illuminated. The vehicle had extensive damage to the hood, which had crumbled, the front grill, and the engine compartment. The driver's side air bag had deployed. The contact stated that the other vehicle was a pick-up truck and drove away from the scene. The police arrived on the scene and filed a report. The contact reported that there were no injuries. The vehicle was towed to an impound lot. The contact's insurance provider had declared the vehicle a total loss. The contact stated that he received a recall notice from the manufacturer for NHTSA Campaign Number: 22V465000 (Service Brakes, Hydraulic) two days after the crash. The manufacturer had been informed of the failure. The failure mileage was approximately 27,000.

10/11/2022

POWER TRAIN

1 Report5% of total

Previewing the first 1 complaint summaries.

@ 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.

11/17/2022

SERVICE BRAKES

1 Report5% of total

Previewing the first 1 complaint summaries.

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 (Corporate) is trying to contact the Key GM Buick Dealership to confirm the Recall work has been done and if done, then remove the still pending Recall notice that is still showing the Recall still needs to be done.

6/27/2023

BACK OVER PREVENTION: WARNINGS

1 Report5% of total

Previewing the first 1 complaint summaries.

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.

7/31/2024

LANE DEPARTURE: BLIND SPOT DETECTION

1 Report5% of total

Previewing the first 1 complaint summaries.

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.

7/31/2024

About This Data

Data and Methodology

MethodologyHow we score →

Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.

FAQ

What are the most common owner complaints for the 2018 Buick Regal TourX?

The most reported complaint category for the 2018 Buick Regal TourX is UNKNOWN OR OTHER, with 4 owner reports. That is about 19% of all complaints logged here. Other recurring themes include UNKNOWN OR OTHER, ENGINE, ELECTRICAL SYSTEM.

Are complaints about the 2018 Buick Regal TourX a serious warning sign?

Potentially. 9 complaint reports fall into higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components. That does not prove every vehicle has a defect, but repeated complaints in those systems justify a more careful pre-purchase inspection.

How should buyers use complaint data for the 2018 Buick Regal TourX?

Use complaints as an early pattern to investigate, not a standalone verdict. Start with the top complaint categories, compare those themes against the recall report and maintenance guide, then inspect service records for evidence that the same problem areas were already addressed. If the same issue appears repeatedly across complaints and recalls, treat it as a real ownership-risk flag.

Are complaints about the 2018 Buick Regal TourX severe?

9 complaint reports involve higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection before purchase.

Complaint list entries are sourced from owner-submitted NHTSA ODI records.

Read complaint summaries

Buick Regal TourX: How should complaint data influence buying decisions?

Use complaint patterns together with recalls and maintenance guidance to estimate ownership risk and inspection priorities.

Carfocal links complaint data directly to recall and maintenance routes for the same model year.

Return to full vehicle report
Complaint entries
21
Top-topic view
5 grouped topics shown
Primary source
NHTSA ODI owner complaint records

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In this guide

  1. 01Overview
  2. 02Common Problems
  3. 03Owner Complaints
  4. 04Data and Methodology

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