2018 GMC Acadia Engine Problems

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

32Engine complaints

8.2%Of all 388 complaints

#4Most-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

POWER TRAIN149 · 38.4%

Unspecified / other116 · 29.9%

ELECTRICAL SYSTEM106 · 27.3%

ENGINE32 · 8.2%

STEERING24 · 6.2%

Share of the 388 complaints citing each category; one complaint can cite several. Full breakdown on the 2018 GMC Acadia overview page.

What owners report

“MY CAR KEEPS GIVING NOTICE OF IT NOT BEING IN PARK, WHEN ITS CLEARLY SHIFTED INTO PARK. IT WONT SHUT DOWN, LET YOU LOCK DOORS…”NHTSA complaint 11329198 — filed 06/16/2020

“WHEN I SHIFT THE TO PARK AND TRY TO TURN OFF MY CAR THE SHIFT TO PARK LIGHTS UP AND I HAVE TO DOWN SHIFT…”NHTSA complaint 11328481 — filed 06/12/2020

“PUT CAR IN PARK WENT TO KILL IT AND IT WONT TURN OFF SAYS SHIFT TO PARK IT IS IN PARK HAD TO DO THIS…”NHTSA complaint 11302677 — filed 01/28/2020

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

Engine complaints by year filed

Frequently asked questions

Does the 2018 GMC Acadia have engine problems?

Engine is the #4 most-reported problem area on the 2018 GMC Acadia: 32 of 388 complaints on file (8.2%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2018 GMC Acadia have in total?

388 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 8 involved a crash, 1 involved a fire, 12 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.