2018 Buick Encore problems & reliability
74 owner complaints filed with NHTSA for the 2018 Buick Encore. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
5 complaints report injuries (9 injured).
Federal crash records (FARS 2020–2023): 2018 Buick Encore vehicles were involved in 41 fatal crashes with 22 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine → | 29 | 39% |
| Service Brakes → | 11 | 15% |
| Air Bags → | 10 | 14% |
| Power Train → | 10 | 14% |
| Unknown OR Other | 10 | 14% |
| Electrical System | 9 | 12% |
| Fuel/propulsion System | 6 | 8% |
| Steering | 6 | 8% |
| Electronic Stability Control (esc) | 5 | 7% |
| Engine and Engine Cooling | 3 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 20,000 miles (middle 50% between 11,242 and 59,250 miles), based on 26 complaints that included mileage.
Complaints by incident year
What owners report
“Not long after I purchased my car, i noticed it was lacking power during takeoff and when driving uphill which forced my car to hit very high RPMs during normal use. There was also a P0299 code that appeared then disappeared frequently. I discovered a turbo special coverage N232395330 and took it to Williams GMC in…”
Engine · filed Aug 2, 2026
“General Motors issued a Special Policy N202299080 covering 2014 Buick Encores. My 2018 Encore had the same issues and symptoms as this Policy. My concern is because of this known problem the crankcase can be pressurized causing oil leaks which could cause a fire. General Motors issued a Service Information Bulletin…”
Engine · filed Jul 31, 2026
“Strong odor of gasoline, followed by a crack in the high pressure fuel line. Gasoline poured out under pressure from fuel line approximately 1 foot ahead of the right rear tire. Major amount of spillage - literally several gallons within a minute or so, that eventually faded as the system lost pressure. Could have…”
Fuel/propulsion System · filed Jul 20, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
897 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2018 Buick Encore. The 10 most recent:
PI to help diagnose A/C concern
PIT5099J · Service Bulletin/Repair Instructions · issued Jul 21, 2026
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIT3271Q · Service Bulletin/Repair Instructions · issued Apr 1, 2026
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP6104 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902V · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902U · Service Bulletin/Repair Instructions · issued Jan 8, 2026
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions…
PIT5214G · Service Bulletin/Repair Instructions · issued Nov 20, 2025
New Vehicle Monitoring Programs Section in IVH
13598 · Other · issued Sep 9, 2025
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902T · Service Bulletin/Repair Instructions · issued Aug 14, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may…
PIC5650M · Service Bulletin/Repair Instructions · issued Aug 7, 2025
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not…
N252494770-01 · Service Campaign · issued Jun 20, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 2018 Buick Encore in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2018 Buick Encore?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 20,000 miles — budget accordingly if the car is approaching that mileage.