YearToAvoid

2018 Buick Enclave Engine Problems

NHTSA lists 15 Engine complaints for the 2018 Buick Enclave, 23% of its 64 total complaints for the year. No related recall exists for this component. Median mileage at failure is 22,200 miles, and no crashes, fires, or injuries were reported.

Engine complaints
15
23% of 64
Crashes reported
0
Fires reported
0
Injuries reported
0
Median mileage
22,200 mi
Related recalls
0

Typical engine symptoms owners report

  • Owners report the auto stop-start feature causing the engine to stall or hesitate to restart when pulling away from a stop, sometimes with no override option.
  • Some describe the vehicle bucking, losing power, or rolling backward with the check engine light on and diagnostic codes pointing to engine misfire cylinders.
  • Several owners report the engine or entire electrical system shutting down unexpectedly while the vehicle is still in drive after auto-stop, requiring a restart.
  • Others report rough running or high RPM revving right after refueling, followed by the transmission shifting into neutral unexpectedly at a stop.
  • One owner reported sputtering on takeoff along with a check engine light, later linked by a mechanic to transmission trouble.
  • A separate report describes low engine compression, shaking, and loss of power on the road, along with a later catalytic converter failure.

When 2018 Buick Enclave engine complaints were filed

First complaint Sep 4, 2018, latest May 26, 2026.

2018 Buick Enclave engine complaints: complaints filed per month2Sep 2018Nov 2018Feb 2020Nov 2021Aug 2024Nov 2025
15 complaints filed with NHTSA from Sep 2018 to May 2026; peak Aug 2024 (2).

Engine recalls for the 2018 Buick Enclave

No safety recalls on record for this model year.

Engine complaints by Enclave model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 201082 (30%)
  2. 201146 (22%)
  3. 201226 (20%)
  4. 201315 (22%)
  5. 201418 (6%)
  6. 201516 (9%)
  7. 20169 (6%)
  8. 201710 (6%)
  9. 201815 (23%)
  10. 201913 (31%)
  11. 202019 (32%)
  12. 20212 (8%)
  13. 20223 (23%)
  14. 20232 (10%)
  15. 20242 (29%)
  16. 20254 (11%)

Frequently asked questions

How common are engine problems on the 2018 Buick Enclave?
NHTSA lists 15 Engine complaints for the 2018 Enclave, which is 23% of all 64 complaints filed for that model year.
Is there a recall for the 2018 Buick Enclave engine?
No. The JSON data shows no related recalls listed for the Engine component on the 2018 Enclave.
At what mileage do 2018 Enclave engine problems typically show up?
The median mileage at failure reported to NHTSA for this component is 22,200 miles.
Do these engine complaints involve crashes or fires?
No. NHTSA data shows zero crashes, zero fires, and zero injuries associated with these Engine complaints.
How does 2018 compare to other Enclave model years for engine complaints?
The 2018 Enclave's 23% share is higher than 2016 (6%) and 2017 (6%), but lower than 2019 (31%) and 2020 (32%).

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.