This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
full bulletin at NHTSA ↗2015 Buick LaCrosse electrical problems
moderate Owners of the 2015 Buick LaCrosse have filed 7 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
| Model year | electrical complaints |
|---|---|
| 2011 LaCrosse | 30 |
| 2012 LaCrosse | 45 |
| 2013 LaCrosse | 35 |
| 2014 LaCrosse | 12 |
| 2015 LaCrosse (this page) | 7 |
| 2017 LaCrosse | 8 |
| 2018 LaCrosse | 3 |
When does it fail?
Of the 7 electrical complaints filed for the 2015 Buick LaCrosse, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
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.
No new NHTSA electrical complaint has been filed on this vehicle in over 6 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 3 most recent
I have been having problems where my car wont start, when trying lights rapidly blink, sometimes the radio and directionals wont work, and sometimes it cuts off while driving. My car is a 2015 Buick lacrosse with 14k miles on it.
Tl* the contact owns a 2015 Buick lacrosse. While driving various speeds, "don't take your eyes off the road " began to flash on the message board. The failure recurred on numerous occasions. The vehicle was taken to a dealer. The contact was informed that the message was only supposed to display during vehicle start up. It was diagnosed that a module needed to be replaced. The vehicle was not…
Takata recall, the engine stalled while driving the car especially during turns. The car continued to hesitate to stall in traffic. The car vibrated nearby the steering column while driving in traffic. The car floor appeared to cave in on the left side on the driver's side. The heater failed to blow out hot air. The telephone calls were distorted as evidenced by being unable to hear the caller.
Common questions
How serious is the electrical problem on the 2015 Buick LaCrosse?
It's a documented issue but not catastrophic. 7 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 7 complaints filed, electrical issues most often appear around 20,638 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.