2018 GMC Acadia transmission and drivetrain problems
163 of the 396 complaints owners filed with NHTSA about the 2018 GMC Acadia name the transmission and drivetrain (NHTSA’s “Power Train” heading — the transmission, transfer case, driveshafts, axles and differentials — NHTSA files them under one heading). Filed under the same heading: 102 manufacturer bulletins, 1 recall. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.
What owners filed about the transmission and drivetrain
Source: NHTSA complaint database4 of the 163 reports a crash · 0 a fire · 4 injuries. Self-reported, unverified.
Filed per year: 2018: 2 · 2019: 36 · 2020: 31 · 2021: 11 · 2022: 14 · 2023: 15 · 2024: 12 · 2025: 28 · 2026: 14
Half of the 92 owners who gave an odometer reading reported the transmission and drivetrain problem between 20,000 and 48,000 miles. A median of reports, not the life of a part.
396 complaints in all about the 2018 GMC Acadia, 14 filed in 2026. The whole picture, every system →
Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Power Train” means the same area of the vehicle, not one fault.
Across model years: GMC Acadia transmission and drivetrain problems, every year on file →
In owners’ own words
Source: NHTSA complaint databaseFiled with NHTSA by the people who own these cars, about the transmission and drivetrain. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.
My 2018 Gmc Acadia has warning of shift to park. When it is in park. And will not allow me to turn off the car. I feel this is a major issue. This only happens when it is stationary
2018 Gmc Acadia VIN my car has 41,000 miles. When I park and try to shut my car off a message pops up that says "shift to park". It will not allow me to shut my car off because it does not identify that it is in fact in park. Today it took me 15 minutes of turning my car off and on and shifting in and out of park to get it off.
While stationary, instruments show a shift to park message, even though the car was in park. Acadia would not fully turn off until this message is not present. The only way found to have the message clear is to continually shift from drive to park until it recognizes that the car is indeed in park.
Cannot leave car. "shift to park" message appears even with car is parked. Sometimes takes 15 minutes to put car in park
When I try to shut off ignition I get a warning on the dash that says to put vehicle into park before shutting the vehicle off even though the vehicle is in park already. I have to shift in and out of park or ride around again and then trying parking again to get it to shut off.
What is on file about the transmission and drivetrain
Source: NHTSA recalls, investigations and manufacturer communicationsRecall filed under this heading
- 17V516000 HighAug 22, 2017 · 2,905 vehicles
- General Motors LLC (GM) is recalling certain 2018 Chevrolet Equinox and GMC Terrain vehicles and 2017-2018 GMC Acadia vehicles. The right front intermediate driveshaft may fracture and separate while driving.
102 manufacturer bulletins filed under this heading
The 0 newest are listed; every one is on the model year’s page. Quote the document number at a service desk — it is a diagnosis the maker has already written down.
Trouble codes named on this system
Codes a bulletin or an owner’s complaint about the 2018 GMC Acadia names on this model year; a code with a record of its own links it.
Other systems with a record on the 2018 GMC Acadia
Source: the same files- electrical problems 109 complaints
Common questions
Source: NHTSA complaint database, recalls and manufacturer communicationsAre transmission and drivetrain problems common on the 2018 GMC Acadia?
They are documented: NHTSA holds 163 owner complaints naming the transmission and drivetrain on this model year (41% of everything owners filed about it), and 102 manufacturer bulletins, 1 recall are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.
Is there a recall for the transmission and drivetrain on the 2018 GMC Acadia?
Yes — one campaign is filed under this heading: 17V516000. A recall is matched by VIN; check yours at nhtsa.gov/recalls.
When do transmission and drivetrain problems show up on the 2018 GMC Acadia?
Owners who gave an odometer reading reported it at a median of 37,000 miles; half of them between 20,000 and 48,000. That is when reports cluster, not the life of a part.
What does NHTSA's "Power Train" heading cover?
The transmission, transfer case, driveshafts, axles and differentials — NHTSA files them under one heading. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.