The contact owns a 2015 Buick Regal. The contact stated while driving at an undisclosed speed, upon reaching a stop light, the vehicle inadvertently lost motive power and was able to restart. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who was unable to determine the cause of the failure. The vehicle was not repaired. The vehicle was then taken to the dealer, who determined that the engine was experiencing a vacuum leak. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 102,000.
The worst 2015 Buick Regal problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine9
- Lights8
- Electrical5
- Fuel system4
- Airbags3
- Body2
- Brakes2
- Driver assistance2
- Seat belts2
- Visibility2
- Wheels2
- Locks1
- Steering1
- Suspension1
- Transmission1
Specific symptoms reported on the 2015 Buick Regal
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2015 Buick Regal 1,527
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- PI to help diagnose A/C concern
- This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic...
- This preliminary information communicates information about how to determine if a wheel and tires size...
- This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a...
- This Preliminary Information communication provides information to the technician about vehicles that have...
- New Vehicle Monitoring Programs Section in IVH
- This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and...
- Provide info on that parts restriction ending for the rear diff clutch control 19435910
2015 Buick Regal crash test ratings
Government 5-star crash tests. Higher is safer. Each row is a body style and drivetrain that was tested.
| Version | Overall | Frontal | Side | Rollover |
|---|---|---|---|---|
| Buick Regal 4 DR AWD | 5 | 4 | 5 | 4 |
| Buick Regal 4 DR FWD | 5 | 4 | 5 | 4 |
| Buick Regal eAssist 4 DR FWD | 5 | 4 | 5 | 4 |
2015 Buick Regal fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.4L 4‑cyl Hybrid | FWD | 24 | 35 | 28 |
| 2.0L 4‑cyl | FWD | 20-21 | 29-31 | 24 |
| 2.4L 4‑cyl | FWD | 19 | 30 | 23 |
| 2.0L 4‑cyl | AWD | 19 | 27 | 22 |
What 2015 Buick Regal owners say
Most recent owner complaints, unedited.
Excessive oil consumption on the 2.4L engine. GM has known about the oil consumption on these engines for a long time and if oil is not consistently checked and topped off it will seize the motor while driving
After starting my vehicle with foot on the brake and putting the vehicle in gear it will move forward and occasionally roll for 4 or 5 feet before the brake engages. This is extremely dangerous as I'm pulling out of a parking space and merging with ongoing traffic !This has been going on for approximately three weeks. The vehicle literally has no brakes for four or five feet despite the fact that my foot being pressed all the way down on the brake pedal!! Last week I came very close to a major accident when I couldn't stop for an on oncoming car. Thank goodness the operator of the other vehicle stopped in time to avoid a serious accident! I immediately took the car to a local garage to have my brakes checked. They found no issues. I then took it to the Buick dealer,BICAL, and they found a serious issue. The brake vacuum pump had frozen and had actually disintegrated and no longer was functional. Parts from the pump entered the valve shaft area also. The end result was a $3,000 repair bill. The important issue here is the driver safety on the road.Although this was only occasional and at low speeds left unattended would lead to a total brake failure with major consequences and major fatalities!! God only know how many major accidents occurred with major consequences without anyone knowing the true source of the accident details. I have read online that 1996-1997 Cadillacs also have this same issue!! This is a very poor design and a major safety issue. After all there is no such thing as a minor brake issue!!! I'm avail to discuss this issue issue at your convenience. I can be reached on [XXX] [XXX] cell. Repair bill available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owned a 2015 Buick Regal. The contact stated that while powered off, a civilian observed smoke emanating from the engine compartment. The contact stated that the vehicle then exploded. The contact stated that a vehicle parked next to the vehicle had damage from the fire. The origin of the fire was unknown. The fire department extinguished the fire and a fire department report was made available. The manufacturer was not notified of the failure. The failure mileage was unknown.
Airbag Red Light indicator on for 2+ weeks, ambient temperature sensor malfunction and vehicle seems to have less pressure when accelerating
I purchased my 2015 buick in May of 2015. At about December of 2017 the drivers HID head light was breached and moisture crept in creating an inner fog and eventually a puddle of water. In the falloff 2018 the same thing happened on the passengers side. I've removed both head assemblies and tried to fix the problem with very little success. Now I am looking at replacing both lamp assemblies at a cost of $2200 not counting labor.
Drivers side headlight has condensation in it & stopped working. Vehicle hasn’t been involved in any accidents or incidents that would have caused this. Dealer advised of the problem while performing oil change.
I started experiencing excessive oil burn at around. Since then, I have checked my oil biweekly to top off and keep at proper levels along with consistent oil changes as the oil gets dirty quickly. Dealerships before have told me that its "normal" for these engines. I discovered a bad oil leak. Vacuum pump issues. Multiple camshaft seals worn away, that were hard as rock from excessive heat including piston seals that had been affected. Thought this possibly had fixed the excessive oil burn. A few weeks later I received the oil level low notification on the car computer. I check and its very low. The oil burn is continuing with no clear signs of an oil leak with dirty oil. There is possibly more problems within the engine that aren't seen. I have checked previous complaints. I notice that this engine has many of the same problems with the turbo package on gm vehicles. It has a rough idle and engine hesitation. These characteristics seem to include inconsistent engine performance sound and are felt through the pedals, the driver's seat and steering wheel, there is a putter and hesitates while accelerating.
Air bag system keeps coming on the dealer says it's my fault and they can't do nothing about it I have a kid and it's not safe my airbag can deploy anytime.
Engine has gone out twice within 54k miles. Service tech said this is a know issue with the 2015 buick regal engine. I just had it replaced the 2nd time in feb of 2020. First time it went out there was only 12k miles on it. Now its nov. Of 2020 and the car is having the same exact issues as it was when both engines went out. I cannot believe this is happening a third time. This is not fair as a consumer to purchase a new car with barely any mileage and the engine keeps going on. I was on the freeway the last time. Worst possible timing ever. This is like a never ending really expensive issue
Compare the 2015 Buick Regal
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Questions about the 2015 Buick Regal
Is the 2015 Buick Regal reliable?
Owners have filed 33 complaints about the 2015 Buick Regal, close to a typical Regal model year.
What is the 2015 Buick Regal year score?
The 2015 Buick Regal scores 78 out of 100 (average). The score compares it with the other model years of the Buick Regal: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2015 Buick Regal?
Engine and cooling, with 9 complaints, typically around 54,000 miles. Next is lights (8).
How many recalls does the 2015 Buick Regal have?
No recalls on record.
Is the 2015 Buick Regal safe in a crash?
In government crash tests the 2015 Buick Regal scored 5 out of 5 stars overall, depending on body style and drivetrain (3 versions tested).
What year does the Buick Regal have bad engine?
The Buick Regal model years with the most engine complaints are 2011 (111 complaints), 1999 (91 complaints) and 2001 (86 complaints).
What gas mileage does the 2015 Buick Regal get?
Official estimates for the 2015 Buick Regal range from 22 to 28 mpg combined. The most efficient version (2.4L 4-cyl hybrid, FWD) gets 24 city and 35 highway.
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