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Vehicle speed controlPart report

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 miles

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
2022113%
2020316%
201978%
201834%
201733%
201634%
201554%
201423%
2013612%

Other parts of the 2018 Buick Encore

Engine
29 complaints
Brakes
11 complaints
Air bags
10 complaints
Other or unknown
10 complaints
Transmission and drivetrain
10 complaints
Electrical system
9 complaints
Fuel system
6 complaints
Steering
6 complaints
Electronic stability control
5 complaints
Engine cooling
3 complaints
Seat belts
2 complaints
Exterior 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