The Verdict
Worst problem area
Electrical
Electrical leads by volume: 2 of 6 complaints (33%) mention it.
Complaints filed fell from 20 in 2019 to 6 in 2020.
At a glance
- NHTSA complaints
- 6
- Recall campaigns
- 1
- EPA fuel cost per year
- $2,850–$3,200
- Combined MPG
- 22–26
Complaints by model year
Where owners report problems
Cost, Fuel Economy & Complaint History
| Category | 2018 | 2019 | 2020 | vs. 2020 Midsize Cars |
|---|---|---|---|---|
| Annual fuel cost ($) | 2,850–3,200 | 2,850–3,200 | 2,850–3,200 | |
| Combined MPG | 22–26 | 22–26 | 22–26 | |
| City / Highway MPG | 19–22 / 27–32 | 19–22 / 27–32 | 19–22 / 27–32 | |
| CO₂ tailpipe (g/mi) | 344–403 | 345–404 | 343–411 | |
| Complaints filed | 33 | 20 | 6 | |
| Recalls issued | 3 | 2 | 1 | |
| Crash-involved complaints | 5 | 0 | 1 | |
| Fire-involved complaints | 0 | 0 | 0 | |
| Injuries reported | 4 | 0 | 0 | |
| Deaths reported | 0 | 0 | 0 | |
| Configurations compared | 3 | 3 | 3 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2020 Buick Regal have?
1 NHTSA recall campaign as of Nov 7, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2020 Buick Regal?
Electrical: 2 of 6 NHTSA complaints (33%) mention it.
What gas mileage does the 2020 Buick Regal get?
EPA rates it 22–26 MPG combined.
How much does it cost to fuel a 2020 Buick Regal?
EPA estimates $2,850–$3,200 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (4)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (S9) | 4 | 2.0L | Front-Wheel Drive | Premium | Midsize Cars | 22 mpg (high) | 32 mpg (high) | 26 mpg (high) | $3,000 | 343 g/mi (low) |
| Configuration 2 | Automatic (S8) | 4 | 2.0L | All-Wheel Drive | Premium | Midsize Cars | 21 mpg | 29 mpg | 24 mpg | $3,200 (high) | 365 g/mi |
| Configuration 3 | Automatic (S8) | 4 | 2.0L | All-Wheel Drive | Premium | Small Station Wagons | 21 mpg | 29 mpg | 24 mpg | $3,200 (high) | 365 g/mi |
| Configuration 4 | Automatic (S9) | 6 | 3.6L | All-Wheel Drive | Regular | Midsize Cars | 19 mpg (low) | 27 mpg (low) | 22 mpg (low) | $2,850 (low) | 411 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 0 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 0 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 2 | 1 | 0 | 0 | 0 |
| Brakes | 0 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 1 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 2 | 1 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 1 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 1 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 0 | 0 | 0 | 0 | 0 |
| Other | 0 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (1)
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE
- Defect
- General Motors, LLC (GM) is recalling certain 2018-2020 Buick Regal vehicles. In the event of a vacuum-power brake assist failure, a software error in the electronic brake control module (EBCM) may result in a loss of power brake assist. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard No. 135, "Light vehicle brake systems."
- Consequence
- A loss of power brake assist can extend the distance required to stop the vehicle, increasing the risk of a crash.
- Remedy
- Dealers will update the EBCM software, free of charge. Interim owner notification letters advising owners of the safety risk were mailed on August 19, 2022. Owner notification letters were mailed September 16, 2022. Owners may contact Buick's customer service at 1-800-521-7300.