YearToAvoid

2018 Buick Enclave Reliability Data: Problems & Recalls

Good The 2018 Buick Enclave has a complaint index of 29, ranking 13th of 18 model years, and earns a Good verdict. Brakes are the top complaint area with 21 complaints (33% share) and a median failure mileage of 23,000, but there are no recalls on record for this year.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
29/100
#13 of 18 Enclave years
Verdict
Good
vs. other years of this model
Complaints
64
unique NHTSA reports
Recalls
0
distinct NHTSA campaigns
Crashes
5
reported in complaints
Fires
0
Injuries
1
Top issue
Brakes
Best nearby year
2019
rated Best
NHTSA overall rating
5 / 5 ★
EPA combined MPG
20.5
17.5 city / 25.5 hwy
Injuries / deaths
1 / 0

Top 2018 Buick Enclave problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Brakes21 (33%)
  2. Engine15 (23%)
  3. Transmission & Powertrain15 (23%)
  4. Electrical System10 (16%)
  5. Other8 (13%)
  6. Collision Avoidance & Cameras4 (6%)
  7. Fuel System4 (6%)
  8. Airbags2 (3%)
  9. Steering2 (3%)
  10. Structure & Body2 (3%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Brakes fail to stop the vehicle promptly or at all, sometimes on cold starts with the engine at high idle.
  • A red 'service brake assist' message appears on the dash along with a grinding noise and reduced braking power.
  • The vehicle rolls forward unexpectedly when shifted into reverse.
  • The automatic engine stop-start feature shuts the engine off while stopped and is slow to restart, causing stalling and hesitation.
  • Airbags deploy in low-speed impacts, raising owner concern about whether deployment was appropriate.
  • The sunroof has shattered suddenly while driving on the highway.
2018 Buick Enclave complaints: complaints filed per month4Feb 2018Nov 2018Nov 2019Jul 2020Nov 2021Feb 2023Dec 2024Nov 2025
64 complaints filed with NHTSA from Feb 2018 to Jun 2026; peak May 2026 (4).

2018 Buick Enclave recalls

No safety recalls on record for this model year.

2018 Buick Enclave fuel economy and fuel cost

City
17.5 MPG
Highway
25.5 MPG
Combined
20.5 MPG
Annual fuel cost (EPA)
$3,175
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 Enclave years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23’24’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2016Good47141417.5
2017Caution59179317.5
2018Good2964020.5
2019Best1842120.5
2020Good4159620.5

All Buick Enclave years: best and worst →

Frequently asked questions

Is the 2018 Buick Enclave reliable?
Based on NHTSA owner complaints and recalls, the 2018 Enclave has a complaint index of 29, the 13th-highest of 18 model years, and carries a Good verdict relative to other Enclave years.
What are the most common problems with the 2018 Buick Enclave?
Brakes are the top complaint area with 21 complaints (33% share) and a median failure mileage of 23,000. Engine issues and transmission & powertrain issues each account for 15 complaints (23% share).
Does the 2018 Buick Enclave have any recalls?
NHTSA lists no recalls for the 2018 Enclave in this data, including no do-not-drive recalls.
How does the 2018 Enclave compare to other Enclave years?
The 2018 model's complaint index of 29 is well below high-complaint years like 2008 (100) and 2014 (88), though still higher than the Best-rated 2019, 2021, 2022, 2023, and 2024 model years.
What is the fuel economy of the 2018 Buick Enclave?
The 2018 Enclave is EPA-rated at 20.5 mpg combined (17.5 city / 25.5 highway), with an estimated annual fuel cost of $3,175.

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.