2015 Buick Encore Engine Problems

NHTSA component category: ENGINE · data through 07/14/2026

28Engine complaints

22.8%Of all 123 complaints

#2Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How engine ranks on this vehicle

ELECTRICAL SYSTEM30 · 24.4%

ENGINE28 · 22.8%

STEERING27 · 22%

SERVICE BRAKES20 · 16.3%

AIR BAGS16 · 13%

Share of the 123 complaints citing each category; one complaint can cite several. Full breakdown on the 2015 Buick Encore overview page.

What owners report

“The PVC valve was frozen and leaked oil everywhere. I was told by a mechanic at my dealership that it is a known issue. They…”NHTSA complaint 11505584 — filed 02/04/2023

“My car started surging when I was sitting at a traffic light and as I was crossing abridge The check engine light came on -…”NHTSA complaint 11499335 — filed 12/29/2022

“Have had the car in the Buick dealership numerous times to get these things fixed. Each time was told it was fixed and I paid…”NHTSA complaint 11445454 — filed 12/29/2021

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Engine complaints by year filed

Frequently asked questions

Does the 2015 Buick Encore have engine problems?

Engine is the #2 most-reported problem area on the 2015 Buick Encore: 28 of 123 complaints on file (22.8%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2015 Buick Encore have in total?

123 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 6 involved a crash, 2 involved a fire, 7 reported injuries, and none reported deaths.

What does NHTSA's engine category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.