This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
full bulletin at NHTSA ↗2015 Buick Regal electrical problems
severe 5 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
5
Recalls
0
Avg fix
$850
2injuries
When does it fail?
Of the 5 electrical complaints filed for the 2015 Buick Regal, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA electrical complaint has been filed on this vehicle in over 9 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
full bulletin at NHTSA ↗This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
full bulletin at NHTSA ↗The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
full bulletin at NHTSA ↗This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
While driving, on two separate occasions, my dashboard / radio went completely out...only for a few brief seconds, but that has me concerned now seeing a complaint has been filed re similar issue,
While I was driving all the dashboard lights want out completely, the car didn't stop running. I got home and tried to get into the car two hours later and the doors would not open with the remote,so I use the key to enter the car, close the door and the alarm want off and the doors locked, I pressed down on the break and push in on the start button, the panel lite up said that the remote dose…
Airbag Red Light indicator on for 2+ weeks, ambient temperature sensor malfunction and vehicle seems to have less pressure when accelerating
Tl* the contact owns a 2015 Buick regal. While the contact was inside the vehicle, the driver's side door lock was pressed, which activated the anti-theft system. The doors would not unlock from the inside and the occupants became trapped inside the vehicle for approximately 15 minutes before the contact was able to open the doors. An unknown dealer and the manufacturer were notified of the…
Had electrical trouble with your 2015 Buick Regal?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2015 Buick Regal?
It's a meaningful issue. 5 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 5 complaints filed, electrical issues most often appear around 27,967 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2015/Buick/Regal.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.