YearToAvoid

2018 Buick Encore Problems, Recalls & Reliability

Verdict

Caution

Complaint Index

56/100

#5 most-complained of 10 Encore years

The 2018 Buick Encore has a Complaint Index of 56 and ranks 5th worst out of 10 model years, earning a Caution verdict. Engine complaints dominate at 46% of reports, with brakes and airbags also notable, but no recalls were issued for this year.

Complaints
74
Recalls
0
Crashes / fires
10 / 0
Injuries / deaths
9 / 0
NHTSA overall rating
5 / 5 ★
EPA combined MPG
28
25.5 city / 32 hwy

Top 2018 Buick Encore problems

NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.

  1. Engine34 (46%)
  2. Brakes15 (20%)
  3. Airbags10 (14%)
  4. Electrical System10 (14%)
  5. Other10 (14%)
  6. Transmission & Powertrain10 (14%)
  7. Fuel System6 (8%)
  8. Steering6 (8%)
  9. Seat Belts2 (3%)
  10. Structure & Body2 (3%)

What owners report

  • Owners report unintended rolling or movement while the vehicle was parked and unoccupied, leading to a collision.
  • Airbags reportedly failed to deploy in frontal and rear-end collisions, including one crash where two occupants were injured.
  • Drivers describe the vehicle accelerating unexpectedly when the brake pedal was applied, in one case causing a collision.
  • Some owners report the engine revving at a high rate while braking action was engaged, even as the vehicle slowed.
  • One driver described a combined brake and steering failure on the highway that resulted in injuries.
  • A fuel system complaint describes water pooling on the fuel filler port during rain, preventing refueling.
2018 Buick Encore complaints: complaints filed per quarter102018 Q22019 Q32020 Q32021 Q32023 Q12024 Q22025 Q22026 Q2
107 complaints filed with NHTSA from 2018 Q2 to 2026 Q3; peak 2022 Q2 (10).

2018 Buick Encore recalls

No safety recalls on record for this model year.

2018 Buick Encore fuel economy and fuel cost

City
25.5 MPG
Highway
32 MPG
Combined
28 MPG
Annual fuel cost (EPA)
$2,300
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2018 compared with other Encore years

Complaint Index by model year (0 = fewest issues, 100 = most)02550751002013201420152016201720182019202020212022
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2016Caution6779228
2017Avoid10089228
2018Caution5674028
2019Avoid8986227
2020Best2219226.5

All Buick Encore years: best and worst →

Frequently asked questions

Is the 2018 Buick Encore reliable?
NHTSA lists 74 complaints for the 2018 Encore with a Complaint Index of 56, giving it a Caution verdict. That places it 5th worst out of 10 model years of the Encore, better than 2015, 2017, and 2019 but worse than 2013, 2014, 2020, 2021, and 2022.
What is the biggest problem area for the 2018 Buick Encore?
Engine complaints make up 46% of all reports for the 2018 Encore, the largest single category, with a median failure mileage of 54,000 miles.
Does the 2018 Buick Encore have any recalls?
NHTSA lists 0 recalls for the 2018 Buick Encore, and 0 of those are do-not-drive recalls.
How does the 2018 Encore compare to other years for brake or airbag issues?
Brakes account for 20% of 2018 Encore complaints with 4 crashes and a median failure mileage of 20,200.5 miles, while airbags account for 14% of complaints with 6 crashes reported.
What is the fuel economy of the 2018 Buick Encore?
The 2018 Encore is EPA-rated at 28 mpg combined (25.5 city / 32 highway), with an estimated annual fuel cost of $2,300.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.