10.0
really awful- Crashes / Fires:
- 3 / 0
- Injuries / Deaths:
- 5 / 0
- Average Mileage:
- 10,665 miles
About These NHTSA Complaints:
The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.
Truck lost power randomly while driving on freeway spend so much money on fixing it this has to do something with the way the built
- Rancho Cucamonga, CA, USA
While car is in park, I get the "Shift To Park" warning after driving the vehicle.
- Mary Esther, FL, USA
A thermostat failure displays a "steering assist" warning while driving. The thermostat housing has been replaced twice in 3 years after this warning.
- College Station, TX, USA
My steering assist is coming on an the thermostat play apart in this. The thermostat need to be change. 2018-GMC-Acadia are having problems with these parts.
- Chicago, IL, USA
Steering Assist is Reduced Drive with care. Everyone is have a problem with the 2018-GMC-Acadia thermostat is bad.
- Chicago, IL, USA
Seemingly at random a warning will pop up on the driver dashboard -??Steering assist is reduced at this time-??. This will lead to a engine coolant temp reading of 0 degrees, no a/c and reduced steering functionality. Through further investigation the OBD code P0128 tells us it-??s a faulty Thermostat or Thermostat sensor. Even if you get these parts replaced, the issue still comes back. I-??ve seen these exact complaints at least a thousand times across multiple years of this model/make 2016,2017,2018,2019. This is clearly a manufacturers fault and needs a recall before people get hurt.
- Spokane, WA, USA
The thermostat housing fails and is a known issue which causes the car to overheat and they said it will start of fire or shut down and loss of steering assist. The dealerships know about the issue and GMC does nothing leaving people with large repair bills or inoperable cars. the system won't let me upload my receipts here is the part #12678780 I was told by the dealership this is a known issue and they my emissions warranty only covers the thermostat but not the housing, but that they are 1 piece, playing games.....
- Scarsdale, NY, USA
bad torque converter lead to transmission replacement bad torque converter inspected by dealer car stopped starting difficulty shifting and catching up to speed while driving gmc california denied goodwill help
- Dublin , CA, USA
I have this 2018 Acadia where all of a sudden, at random, the radiator fan runs on high constantly, the AC stops blowing cold air, the thermostat gauge on the dash drops to the C, and the Power Assist is reduced and pops up as a message on the dash as well. Sounds like this may be a common problem among Acadia's. It resets at random and everything appears to be normal for a while. In addition, there are no check engine lights and no codes to check. I have had this happening for over a year and had a dealership service the car but never said mentioned it as a problem. So now that it's out of warranty my and has more frequent occurrences now I''m more aware but now it's out of warranty. It comes up on an Acadia Forum as a common issue. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Mount Pleasant, WI, USA
I bought a used 2018 GMC Acadia in Oct. 2023. Initially the thermostat would go out and a check engine light would come on. This seems to be a common problem in GMC Acadia's and there are multiple blogs on this online (e.g. [XXX] ). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Sebastian, FL, USA
The -??steering assist reduced. Drive with care-?? A/C turns off and fan kicks on high. Transmission temp flatlines. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Carson City, NV, USA
We own a 2018 GMC Acadia Denali. Upon shifting the vehicle into park, we cannot turn off the engine. The vehicle gives us a "Shift to Park" message on the instrument panel. As a result, we are unable to shut off our engine and, to avoid the battery running out, are forced to attempt to move the shift lever in and out of "Park" to get the car to detect that the shift lever is in fact in -??Park.-??-??
- Arlington, TX, USA
Vehicle will not shut off as it shows shift to park. Reoccurring problem.
- Oshkosh, WI, USA
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. Just beeps until it finally realizes its in park. Even after continuously re shifting into park. Worse in the summer months. It needs to be fixed as many others are having the same issue!
- Abilene, TX, USA
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 and then shift to park again to get my car to shut off also the air compressor has already quit working with less than 40K miles on it.
- Alicia, AR, USA
Vehicle will not acknowledge that it is in park. Forces electrical to stay on, and sometimes will not engage park so vehicle can move as if I'm neutral. Has thus far happened with vehicle stopped, but you can sometimes shut off engine and exit vehicle when it is not in park and can roll against you, or on kids exiting etc. Vehicle rolled in garage and struck, and could have crushed child against door.
- Darien, CT, USA
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 like 10 times..twice today..my car wont turn off finally got it off. I have only had this 2018 Acadia lead than 1 mth.. I have read where this is a big major issue.. what do I
- Powderly, TX, USA
Multiple occasions when driving vehicle, then attempting to shift from drive to park and actually in park an error comes on 'shift to park' comes on, I've taken it to dealership and they blame me on some light bulbs I changed, well I changed them back and still error occurs. Unfortunately when that happens I can't lock my vehicle for some time until multiple times of turning on and off the vehicle. (2) while driving forward, my rear camera would be displaying live everything behind me, which was very distracting, took it to the dealership, I think they fixed
- Edinburg, TX, USA
My 2018 GMC Acadia slt-1 has been having acceleration issues like shuddering and or feels like a full loss of power, with no check engine light. I've taken it into the dealership twice for this problem. I've only taken it in this 2nd time because it got worse and scared me that it would die on the highway. It also has had to have the battery charged 3 times in a couple of weeks, yet the dealer says the battery checks good. At the least I believed since its under warranty they would change the battery in the case the computer is causing issues based on battery voltage. The alternator is working, but with only 29K miles none of this battery nor acceleration shudder and stumble like its going to die should be acceptable.
- Wichita, KS, USA
- Lisbon , ME, USA