2018 GMC Acadia Electrical system Problems
- Complaints
- 109about this part
- Share
- 27%of 398 total for the year
- Median mileage
- 32,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 109 complaints about the electrical system of the 2018 GMC Acadia, 27% of the 398 complaints for this model year. Where a mileage was given, the median is 32,000 miles. 3 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Every time I park and try to shut car off the car refuses to turn off and gives a message that says shift to park. Requires 20+ attempts of restarting, shifting out of park and back into it before succeeding. Car is clearly in park, not rolling but I'm unable to turn off car fully. This has been occurring the last month or two. I bought the car brand new.”
NHTSA complaint #11348585, filed 2020-08, 30,000 miles“1 out of 2 times a day when I put the vehicle in park it gives me a warning to shift to park on the electronic dash. Even though the shift is sitting in the park position. So I have to restart the car, take it out of park and shift back to park multiple times before the warning goes away. This warning prevents the car from completely shutting down”
NHTSA complaint #11270904, filed 2019-10, 43,000 miles“Receive a shift to park issue when trying to turn off the car. Have to move the shift to drive and back to park multiple times before it allows me to shut off the car. After a month or so it started draining my battery. I had to pay to replace the shift assembly and replace the battery. It's been less than 2 months and I'm starting to get the message again!”
NHTSA complaint #11280640, filed 2019-11, 36,000 miles“I just bought this 2018 Acadia in july and it is now giving me the shift to park alert even though the car is in park. It takes several tries of restarting and shifting to get it to turn off, so far. I'm afraid one time it will be stuck there permanently.this apparently is a known and frequent issue and Gmc needs to do a recall.”
NHTSA complaint #11253306, filed 2019-09, 30,000 miles“Shift to park issue. When our 2018 Gmc Acadia is placed in park, the dic displays that the vehicle is not in park when it is indeed in park. Never sure if transmission is truly in the park position and cannot roll, but there is no confirmation of this. This indication failure prevents us from leaving the vehicle for a substantial amount of time until we (if ever) see the proper park indication.”
NHTSA complaint #11349815, filed 2020-08, 28,000 milesRelated service bulletins
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017443Apr 2, 2025This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11013149Jan 17, 2025This service bulletin provides information to the customer about the rear camera guidelines not being present at times due to the VBM taking over the rear camera option.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012929Jan 7, 2025This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 11011805Dec 6, 2024This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 3 | 30% |
| 2025 | 4 | 6% |
| 2024 | 8 | 13% |
| 2023 | 10 | 20% |
| 2022 | 15 | 29% |
| 2021 | 39 | 25% |
| 2020 | 28 | 26% |
| 2019 | 106 | 27% |
| 2018 | 109 | 27% |
| 2017 | 193 | 27% |
| 2016 | 25 | 11% |
| 2015 | 28 | 12% |
| 2014 | 90 | 19% |
| 2013 | 38 | 28% |
| 2012 | 41 | 14% |
| 2011 | 47 | 17% |
| 2010 | 45 | 13% |
| 2009 | 47 | 14% |
| 2008 | 153 | 18% |
| 2007 | 57 | 13% |
Other parts of the 2018 GMC Acadia
164 complaintsOther or unknown
118 complaintsEngine
35 complaintsSteering
24 complaintsBrakes
22 complaintsElectronic stability control
12 complaintsFuel system
10 complaintsLane departure
6 complaintsBack-over prevention (rear camera)
5 complaintsSeats
5 complaintsSuspension
5 complaintsVehicle speed control
5 complaints
← All problems reported for the 2018 GMC Acadia
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology