“I had a flat the other day I haven't had 1 for twenty years I don't like the heating system it's too complex why can't we just have heat and no heat I'm afraid to touch my control panel for fear of messing it up.”
2015 Buick Regal: What's New, Specs & Features
Last updated August 4, 2026
The main change for the 2015 Buick Regal is an infotainment update that adds text-message alerts and Siri Eyes Free. Buick also added the simpler 1SV trim midyear, but this is otherwise a light-update year rather than a redesign.
About the 2015 Buick Regal
5th-generation Buick Regal in North America (2011-2017), second model year after the 2014 refresh.
Buick positioned the Regal as its driver-focused midsize sedan: quieter and more upscale than a mainstream family sedan, but sharper to drive than Buick’s softer large cars. The appeal was a premium-feeling cabin with leather seating, a hushed ride, useful tech and available AWD, giving shoppers a near-luxury alternative to European and Japanese sport sedans without leaving the Buick showroom.
The 2015 Regal ranges from the straightforward 1SV to the performance-focused GS. Every trim has heated leather-appointed front seats and an 8-inch touchscreen, while Premium II adds navigation, Bose audio and HID headlights. The 259-horsepower GS stands apart with stronger brakes, a sport-tuned suspension and selectable driving modes.
What changed, by category
Tech
The IntelliLink touchscreen system gains text-message alerts and Siri Eyes Free across the lineup.
Powertrain
The new midyear 1SV trim brings a non-turbo 2.4-liter four-cylinder engine, a six-speed automatic transmission and front-wheel drive to the lineup.
2015 Buick Regal specs and features by trim
| Feature | |||||
|---|---|---|---|---|---|
| Engine | 4-Cyl, Turbo, 2.0 Liter | 4-Cyl, 2.4 Liter | 4-Cyl, 2.4 Liter / 4-Cyl, Turbo, 2.0 Liter | 4-Cyl, eAssist, 2.4 Liter / 4-Cyl, Turbo, 2.0 Liter | 4-Cyl, Turbo, 2.0 Liter |
| Transmission | Automatic, 6-Spd | Automatic, 6-Spd | Automatic, 6-Spd | Automatic, 6-Spd w/Overdrive & Shift Control / Automatic, 6-Spd | Automatic, 6-Spd |
| Drivetrain | FWD | FWD | FWD | FWD | FWD |
| Fuel Type | Gas | Gas | Gas | Gas | Gas |
| MPG City | 21 mpg | 19 mpg | 19–21 mpg | 21–24 mpg | 21 mpg |
| MPG Highway | 29 mpg | 30 mpg | 29–30 mpg | 29–35 mpg | 29 mpg |
| Horsepower | 259 hp | 259 hp | 182–259 hp | 259 hp | |
| Torque | 295 lb-ft | 295 lb-ft | 172–295 lb-ft | 295 lb-ft | |
| Trunk/Cargo | 14.2 cu-ft | 14.2 cu-ft | 14.2 cu-ft | 14.2 cu-ft | 14.2 cu-ft |
| Rear Legroom | 37.3 in | 37.3 in | 37.3 in | 37.3 in | 37.3 in |
| Seats | 5 | 5 | 5 | 5 | 5 |
| Doors | 4 | 4 | 4 | 4 | 4 |
| 4-Wheel Disc Brakes | |||||
| Adaptive Cruise Control | |||||
| Alarm System | |||||
| Automatic Emergency Braking | |||||
| Blindspot Sensors | |||||
| Front & Rear Parking Sensors | |||||
| Lane Departure Warning | |||||
| Rear Parking Sensors | |||||
| Rear View Camera | |||||
| Alloy Wheels | |||||
| Fog Lights | |||||
| HID Headlights | |||||
| Memory Exterior Mirrors | |||||
| Power Moonroof | |||||
| Rear Spoiler | |||||
| Navigation System | |||||
| Satellite Radio | |||||
| Smartphone Interface | |||||
| Dual Power Front Seats | |||||
| Dual-Zone Climate Control | |||||
| Heated Front Seats | |||||
| Heated Steering Wheel | |||||
| Integrated Garage Door Opener | |||||
| Leather Seats | |||||
| Memory Driver's Seat | |||||
| Power Driver Seat | |||||
| Push-Button Engine Start | |||||
| Remote Start | |||||
Frequently asked questions
What changed on the 2015 Buick Regal compared with the 2014 model?
The 2015 Buick Regal adds text-message alerts and Siri Eyes Free to its IntelliLink touchscreen system. Buick also introduced the front-wheel-drive 1SV trim midyear with a non-turbo 2.4-liter four-cylinder engine; otherwise, the Regal largely carries over from 2014.
Was the 2015 Buick Regal redesigned?
No, the 2015 Buick Regal was not redesigned. It is the second model year after the larger 2014 refresh, with only an infotainment update and the midyear addition of the 1SV trim.
What is the 2015 Buick Regal 1SV?
The 2015 Buick Regal 1SV is the simpler entry trim added midyear. It has a non-turbo 2.4-liter four-cylinder engine, a six-speed automatic transmission and front-wheel drive, along with heated leather-appointed front seats, an 8-inch touchscreen and a rearview camera.
Does the 2015 Buick Regal have Siri Eyes Free?
Yes, the 2015 Buick Regal has Siri Eyes Free through its IntelliLink touchscreen system. Text-message alerts were added at the same time.
How do the 2015 Buick Regal GS and Premium II differ?
The 2015 Regal GS is the performance-focused version, with a 259-horsepower turbo engine, stronger Brembo front brakes, sport suspension hardware and selectable driving modes. Premium II emphasizes comfort and cabin equipment with navigation, Bose audio, HID headlights and a heated steering wheel.
2015 Buick Regal Reviews
What owners are saying about the 2015 Buick Regal.
4.2
2015 Buick Regal
(212 reviews)
“I like my vehicle very much. It is serving me well. I would encourage others to purchase.”
“It is very difficult to get things out of the arm rest compartment while you are in the driver's seat. I wish it was easier to adjust the temperature by more than a single degree at a time.”