2015 Buick Encore Vehicle speed control Problems
- Complaints
- 5about this part
- Share
- 4%of 124 total for the year
- Median mileage
- 50,150miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the vehicle speed control of the 2015 Buick Encore, 4% of the 124 complaints for this model year. Where a mileage was given, the median is 50,150 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Tried to stop before a red sign on a city street, the car accelerated on its own, passed the red light and run at about 60 MPH on a 35 MPH street for about half a mile and then stopped by itself. Pressing the brakes and even putting it on park did not help. I am lucky to be alive with my two passengers, and lucky not to kill anybody or cause property damage.”
NHTSA complaint #11243404, filed 2019-08, 50,150 miles“The car had been parked in an unheated garage for more than 24 hours. I started it, put my foot on the brake pedal, and put it in gear (r). The car lunged back at a high rate of speed. My foot was still on the brake. To avoid hitting a vehicle behind it in the driveway, I shifted to drive (d) and the car immediately started forward still at a high rate of speed. The brakes did not slow the car down. I bumped the front wall of the garage and again shifted into r. The car started moving back again and the brakes did not work. …”
NHTSA complaint #11083404, filed 2018-04, 12,500 miles“My car started surging when I was sitting at a traffic light and as I was crossing abridge The check engine light came on - 2 codes - transmission module 0700 and module 0073”
NHTSA complaint #11499335, filed 2022-12“I had purchased a 2015 Buick Encore vehicle on march 03, 2020, that had a not for sale yellow sticker on the windshield. I had notice that the vehicle made a thumping sound under the hood on the driver side when riding on the highway. I took it to johnny londoff service dept., but was told that nothing was wrong with it. In addition, to noticing that the vehicle would roll backwards on the smallest of incline. As time went on the vehicle would roll back, then roll forward on leveled grounds when I would take my foot off of the brake pedal. …”
NHTSA complaint #11386321, filed 2021-01“The contact owns a 2015 Buick Encore. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. In addition, the steering wheel seized. The traction control warning light and the power steering warning light was illuminated, and the message to “Contact Dealer for Service” was displayed. The vehicle was towed to the dealer where it was diagnosed that one of the wiring harnesses connected with the CPU had failed. The wiring harness in the CPU was replaced. …”
NHTSA complaint #11677619, filed 2025-07, 138,000 milesRelated service bulletins
- 11014171Jan 31, 2025This service bulletin provides information on proper use of floor mats.
Vehicle speed control: other model years
Other parts of the 2015 Buick Encore
30 complaintsEngine
29 complaintsSteering
27 complaintsBrakes
21 complaintsAir bags
16 complaintsOther or unknown
16 complaintsTransmission and drivetrain
11 complaintsFuel system
7 complaintsExterior lighting
5 complaintsBody and structure
5 complaintsSuspension
5 complaintsElectronic stability control
4 complaints
← All problems reported for the 2015 Buick Encore
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology