2018 Buick Encore Vehicle speed control Problems
- Complaints
- 3about this part
- Share
- 4%of 74 total for the year
- Median mileage
- 27,684miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the vehicle speed control of the 2018 Buick Encore, 4% of the 74 complaints for this model year. Where a mileage was given, the median is 27,684 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.
“This took place on private property in the parking lot of a commercial building. The vehicle was in motion going forward. It was decelerating head-in into a parking spot. The braking action was engaged. The vehicle had slowed to about 5 MPH. My right foot was on the brake pedal and the braking was engaged. I then heard the sound of the engine revving at a very high rate. There was a high whining sound. I lost braking as my right foot depressed the pedal all the way to the floor. The car suddenly accelerated forward at an increased speed. …”
NHTSA complaint #11308591, filed 2020-02, 14,367 miles“While driving, my car began to glitch out. The screens started turning on and off, the doors began locking and unlocking, and I lost my ability to steer, brake, and accelerate. It caused me to run a red light and I almost got into a severe accident. This issue has occurred several times, and during more recent occasions the car has turned off completely while driving. …”
NHTSA complaint #11661607, filed 2025-05“The contact owns a 2018 Buick Encore. The contact stated while driving 25 MPH, the message Engine Power Reduced was displayed and the vehicle lost motive power. The contact was able to continue driving; however, the vehicle would not exceed 25 MPH. The vehicle was taken to the dealer where it was diagnosed that the accelerator pedal had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 41,000.”
NHTSA complaint #11501090, filed 2023-01, 41,000 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 2018 Buick Encore
29 complaintsBrakes
11 complaintsAir bags
10 complaintsOther or unknown
10 complaintsTransmission and drivetrain
10 complaintsElectrical system
9 complaintsFuel system
6 complaintsSteering
6 complaintsElectronic stability control
5 complaintsEngine cooling
3 complaintsSeat belts
2 complaintsExterior lighting
1 complaints
← All problems reported for the 2018 Buick Encore
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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