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Total NHTSA Complaints
9
Owner filings recorded
#1 Reported Problem
Powertrain & Transmission
3 reports (33.3%)
Crash Incident Reports
0
Zero collision citations
Fire & Injury Reports
1
0 fire • 1 injury filings
Defect Investigation Analysis

Executive Problem Findings

AutoUtility currently tracks 9 official NHTSA owner defect complaints for the 2021 Buick Encore. Powertrain & Transmission issues are the most frequently reported category, appearing in 3 complaints (33.3% of submitted records). Among these NHTSA complaint records, 1 reports one or more injuries.

Methodology Notice: Consumer complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Filings are not normalized for sales volume or vehicle mileage and do not constitute an audited component failure rate.
Incident & Severity Profile
  • • Total Owner Reports: 9 complaints submitted under federal penalty.
  • • Primary Subsystem: Powertrain & Transmission accounts for 33.3% of submissions (3 reports).
  • • Secondary Systems: Engine & Cooling (3), Brakes & Traction Control (2).
  • • Crash Incidents: 0 filings cite an impact or collision.
  • • Thermal Incidents: 0 filings cite smoke or fire.
  • • Reported Casualties: 1 injury filings • 0 fatality filings.
Category Distribution

Reported Defect Categories for 2021 Buick Encore

Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records

Powertrain & Transmission
3
33.3%
Engine & Cooling
3
33.3%
Brakes & Traction Control
2
22.2%
Air Bags & Restraints
1
11.1%
Electrical System
1
11.1%
#1 33.3% SHARE

Powertrain & Transmission

3 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#2 33.3% SHARE

Engine & Cooling

3 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#3 22.2% SHARE

Brakes & Traction Control

2 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#4 11.1% SHARE

Air Bags & Restraints

1 owner complaint submitted to NHTSA ODI for this subsystem.

🩹 1 Injury
Consumer Filings

Recent NHTSA Owner Reports for 2021 Buick Encore

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Brakes & Traction Control ODI #11740366
Filed: 05/27/2026
Defect Report

"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..."

Engine & Cooling ODI #11698861
Filed: 11/11/2025
Defect Report

"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..."

Brakes & Traction Control ODI #11682080
Filed: 08/21/2025
Defect Report

"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..."

Engine & Cooling ODI #11675559
Filed: 07/23/2025
Defect Report

"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..."

Powertrain & Transmission ODI #11639039
Filed: 01/28/2025
Defect Report

"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..."

Multi-Year Trend

Complaint History for Buick Encore

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Buick Encore 124 6 4 View 2015 Problems →
2016 Buick Encore 79 6 2 View 2016 Problems →
2017 Buick Encore 89 12 2 View 2017 Problems →
2018 Buick Encore 74 10 0 View 2018 Problems →
2019 Buick Encore 84 9 2 View 2019 Problems →
2020 Buick Encore 19 1 2 View 2020 Problems →
2021 Buick Encore Current Page 9 0 0 Current
2022 Buick Encore 8 1 0 View 2022 Problems →
2023 Buick Encore 0 0 0 View 2023 Problems →
2024 Buick Encore 0 0 0 View 2024 Problems →
2025 Buick Encore 0 0 0 View 2025 Problems →
2026 Buick Encore 0 0 0 View 2026 Problems →
Exhaustive System Audit

Detailed NHTSA Component Breakdown for 2021 Buick Encore

Complete distribution of consumer defect reports across all 6 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Injury Entries Fatality Entries
Engine NHTSA category: ENGINE 3 0 0 0 0
Powertrain NHTSA category: POWER TRAIN 2 0 0 0 0
ELECTRICAL SYSTEM,AIR BAGS 1 0 0 1 0
POWER TRAIN,SERVICE BRAKES 1 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 1 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 1 0 0 0 0
Search Intelligence

Quick Answers: Common Problems & Reliability Questions for the 2021 Buick Encore

Direct, deterministic answers synthesized from verified United States government databases for the 2021 Buick Encore

What are the most common reported problems with the 2021 Buick Encore?

In official NHTSA consumer records, the most frequently cited issue area for the 2021 Buick Encore is Powertrain & Transmission, appearing in 3 records (33.3% of submitted filings).

Secondary reported categories include Engine & Cooling (3) and Brakes & Traction Control (2).

Source: NHTSA Office of Defects Investigation (ODI)

Is the 2021 Buick Encore a reliable vehicle?

AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 9 consumer defect complaints and 0 safety recall campaigns for the 2021 Buick Encore.

Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.

Source: NHTSA ODI & Safety Recalls Databases

Are there crash, fire, or injury reports associated with the 2021 Buick Encore?

Among consumer complaint records on file with NHTSA for the 2021 Buick Encore, 0 filings cite a crash, 0 cite smoke or fire, and 1 report one or more injuries.

Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.

Source: NHTSA Office of Defects Investigation Consumer Logs
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.