NHTSA lists 2 safety recalls and 2 owner complaints for the 2020 Buick Regal. Most complaints involve electrical system (1) and tires (1). The EPA rates it 22–26 mpg combined.
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."
General Motors LLC (GM) is recalling certain 2019-2020 Buick Regal vehicles. The driver or passenger front seat frames may have a lower crossbar that was improperly welded.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Regal model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 1996 | 207 |
| 1998 | 312 |
| 1999 | 252 |
| 2000 | 196 |
| 2001 | 194 |
| 2002 | 129 |
| 2003 | 104 |
| 2004 | 66 |
| 2011 | 280 |
| 2012 | 92 |
| 2013 | 91 |
| 2014 | 38 |
| 2015 | 33 |
| 2016 | 41 |
| 2017 | 20 |
| 2018 | 19 |
| 2019 | 20 |
| 2020 | 2 |
“Proximity door unlock system rarely works goes in and out even with key fob in pocket and within Proximity. I've reported the problem to buick/Chevrolet many times, changed fob batteries and etc with no fix”
“The contact owns a 2020 Buick Regal GS equipped with Continental ProContact TX Tires, Tire Size: 245/40/R19, DOT Number: 6Y66WBR71819. The contact stated while driving approximately 70 MPH, the TPMS warning light indicated that the rear driver’s side tire air pressure was low. The tire lost air pressure and became flat. Also, later the front passenger’s side tire developed bubbles and had to be replaced. Within the first 200 miles of driving the vehicle, a dealer employee experienced a blowout of the front passenger’s side tire. The contact stated that the vehicle was equipped with the tires when it was purchased new. The contact stated that three of the four tires had experienced a failure. The contact was informed that the tire size was not included in the NHTSA Campaign Number: 21T001000 (Tires). The failure mileage was 200.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Regal Auto (S9), 4 cyl, 2.0 L, Turbo · Front-Wheel Drive | 22 | 32 | 26 | $3,000 | 343 |
| Regal AWD Auto (S8), 4 cyl, 2.0 L, Turbo · All-Wheel Drive | 21 | 29 | 24 | $3,200 | 365 |
| Regal AWD Auto (S9), 6 cyl, 3.6 L · All-Wheel Drive | 19 | 27 | 22 | $2,850 | 411 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
2 safety recalls as of Nov 9, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 2 complaints with NHTSA. The most-cited components are electrical system (1), tires (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2020 Buick Regal at 22–26 mpg combined, depending on engine and drivetrain (3 versions rated).