2018 GMC Acadia · symptom sheet
Battery dies or the car will not start
- 30owner reports
- 36,000median miles
- $721median quote
- 1involved a crash
Newest report Apr 27, 2026 · checked Oct 2, 2026
109 of the 396 complaints on this car are about the electrical system. 30 of those describe dead battery.
Tick what matches of 30 reports
Dead battery on other Acadia years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2019, 2020, 2021.
What this problem usually is
These owners walk out to a car that's dead. Some find it drained after sitting only a day or two, some need a jump start every week, and some have had the battery replaced more than once without the problem going away. A good number describe the dealer testing the battery, calling it fine, and sending them home.
What got replaced
Owners who name the part that was replaced mention the battery (29 reports) and the alternator (3 reports).
Recalls and investigations
No recall on the electrical system covers the 2018 model year as of Oct 2, 2026.
NHTSA investigations into the electrical system on the Acadia
Non-crash engine compartment fires. Closed sep 8, 2008, led to recall 08V-441.
None of these investigations covers the 2018 model year.
What owners paid
6 of the 30 reports quote a price. Each dot is one quote. The middle half runs $400 to $900.
When it happens
The middle half of failures fell between 25,000 and 37,000 miles, from the 14 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 5 service bulletins or notices for the 2018 GMC Acadia that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on.
This technical bulletin provides repair information to correct customer concerns of multiple electrical issues, dead battery, start/stop inoperative, instrument cluster and switch backlighting remain illuminated.
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another.
This Preliminary information communicates an Intermittent No Crank, No Start, or Reduced Power loss of data multiple U codes or Intermittent Power Door Locks inoperative, unwanted seat or mirror movement.
1 more on the 2018 GMC Acadia page.
What owners wrote
“My car says Shift to park when I try to turn it off. Leaving my battery to drain.”
Filed Mar 17, 2026
“Shift to park- recall on 2017-2018 Acadiaâs Started having issues several months ago- was occasional note constant. I see there has been a recall at one time and it is ac known problem. I am on my 2nd battery!”
Filed Aug 21, 2025
“After shifting car to âPâ park, it still says shift to park and drains the battery.”
Filed Aug 3, 2025
“Shift To Park appears on the dash display also with a chime warning, when the car is physically in park and the engine is cut off. The shift to park display and the chime stays on causing a complete drain of the battery.”
Filed Jul 8, 2025
Should you keep driving it?
This page can't tell you that. 1 of 30 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found