RoadVitals

2021 Buick Encore Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
9
Latest May 27, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
5
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2021 Buick Encore, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Engine330.0%
  • Powertrain (other)330.0%
  • Brakes220.0%
  • Airbags110.0%
  • Electrical110.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

3
reports

From owner reports, verbatim

I have continuously had my check engine light pop on. I have took it in twice for them fix the issue which is the purge sensor. It did not fix the issue because the light just pops back on. This has caused issues with me passing emissions and has been an headache shortly street I obtained the vehicle.

NHTSA ID 11698861 · filed Nov 11, 2025

Took to the dealership. They stated my flex pipe had melted and the o2 sensors are stuck in the pipe need replacement as well. They have to replace flex pipe and everything leading to the 2nd o2 sensor. They stated there was no damage or tampering to the flex pipe. This should not have happened in this new of a vehicle. This is a dangerous and costly repair that falls on a faulty flex pipe and not covered by the warranty.

NHTSA ID 11675559 · filed Jul 23, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

3
reports

From owner reports, verbatim

Intermittent Service Brake Assist Light with very hard brake pedal and almost no breaks backing up. Have had it to several shops who said it was a turbo booster issue so scheduled service with Patriot GMC Boyertown Pa. Also intermittently has little to no power causing driving hazard suddenly especially uphill. Seems to mostly happen during rainy days.

NHTSA ID 11740366 · filed May 27, 2026

Turbo Charger failed while passing a semi-trailer truck causing a severe lack of power and almost causing a head on collision with on-coming traffic. I had 3 passengers at the time. The problem has been confirmed by a independent service center and I am getting a second opinion from a dealer on 2/3. The check engine light did come on when it happened. There were no symptoms prior to failure. I have since researched the problem and found that Turbo Charger failure is the #1 issue with this make and year.

NHTSA ID 11639039 · filed Jan 28, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

2
reports

From owner reports, verbatim

Intermittent Service Brake Assist Light with very hard brake pedal and almost no breaks backing up. Have had it to several shops who said it was a turbo booster issue so scheduled service with Patriot GMC Boyertown Pa. Also intermittently has little to no power causing driving hazard suddenly especially uphill. Seems to mostly happen during rainy days.

NHTSA ID 11740366 · filed May 27, 2026

The contact owns a 2021 Buick Encore. The contact stated that while driving at an undisclosed speed, the brake pedal was firm while depressed. The contact had to slam on the brake pedal to stop the vehicle. The contact stated that the Hill Assist message was displayed. The brake pedal was pumped several times before the brake pedal released. The vehicle was taken to an independent mechanic, who determined that the brake sensor needed to be replaced. The dealer and another dealer, Mangino Chevrolet, INC. (4447 NY-30, Amsterdam, NY 12010); were made aware of the failure, but informed the contact that there was no recall associated with the VIN. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 20V588000 (Service Brakes); however, the VIN was not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 38,000.

NHTSA ID 11682080 · filed Aug 21, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

1
report

From owner reports, verbatim

NOTHING AIR BAGS DEPLOYED WAS LEAVING A PARKING LOT STARTED WENT TO DRIVE OFF !! BANG 2000 BOUNDS OF PRESSURE IN MY FACE! MY WHOLE BODY!! IT WAS A RENTAL !! LOOK INTO THIS VECHICAIL !HAIR BURNT! FRIED WIRE SMELL STILL ON MY BURNT JACKET!! LOOK INTO THIS WITH GREAT CONCERN AS IAM REACHING OUT WITH SHOCK AND AWE ABOUT THIS WHOLE SITUATION THAT ACCURED** THERE IS VIDEO OF ACCURANCE IN PARKING LOT * THINK THE OWNER IS GOING TO TRY TO COVER UP WHAT EVER HE CAN , SAYING THAT FOR REASON'S OF MY OWN! PLEASE SOMEONE'S JOB TO INVESTAGTE RIGHT ! BLACK BOX DATA SPEED WHICH 2 MILES A HOUR WAS SPEED .. COULDNT SEE * AIR BAGS EVEN CAME UP FROM THE PEDDLES?? WHY ?? SO CANT PUT THE BREAKS ON? LIKE IWAS TRAPPED HURT DID NOT KNOW WHAT WAS GOING ON .

NHTSA ID 11557296 · filed Nov 28, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

1
report

From owner reports, verbatim

NOTHING AIR BAGS DEPLOYED WAS LEAVING A PARKING LOT STARTED WENT TO DRIVE OFF !! BANG 2000 BOUNDS OF PRESSURE IN MY FACE! MY WHOLE BODY!! IT WAS A RENTAL !! LOOK INTO THIS VECHICAIL !HAIR BURNT! FRIED WIRE SMELL STILL ON MY BURNT JACKET!! LOOK INTO THIS WITH GREAT CONCERN AS IAM REACHING OUT WITH SHOCK AND AWE ABOUT THIS WHOLE SITUATION THAT ACCURED** THERE IS VIDEO OF ACCURANCE IN PARKING LOT * THINK THE OWNER IS GOING TO TRY TO COVER UP WHAT EVER HE CAN , SAYING THAT FOR REASON'S OF MY OWN! PLEASE SOMEONE'S JOB TO INVESTAGTE RIGHT ! BLACK BOX DATA SPEED WHICH 2 MILES A HOUR WAS SPEED .. COULDNT SEE * AIR BAGS EVEN CAME UP FROM THE PEDDLES?? WHY ?? SO CANT PUT THE BREAKS ON? LIKE IWAS TRAPPED HURT DID NOT KNOW WHAT WAS GOING ON .

NHTSA ID 11557296 · filed Nov 28, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .