2018 GMC Acadia Electrical System Problems

Source: NHTSA · Updated Sep 29, 2026 · 109 complaints analyzed

Owners have filed 109 complaints with NHTSA about electrical system problems on the 2018 GMC Acadia, 28% of all complaints for this model year. Half of the reports with a mileage happened before 32,000 miles. The words owners use most often: “shift park” (66% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Shift park: mentioned in 72 of 109 complaints (66%)
  • Turn off: mentioned in 33 of 109 complaints (30%)
  • Error message: mentioned in 6 of 109 complaints (6%)

At what mileage do electrical system problems happen?

Based on 51 complaints that reported the odometer reading.

Under 10k miles3 · 6%
10k–25k miles11 · 22%
25k–50k miles30 · 59%
50k–75k miles3 · 6%
75k–100k miles2 · 4%
100k–150k miles1 · 2%
150k+ miles1 · 2%

How serious are the reports?

Of 109 complaints, 3 mention a crash, 1 a fire, 2 an injury.

GMC Acadia electrical system complaints by model year

Peak: 2017, with 193 complaints
2007: 572007572008: 1531532009: 472009472010: 45452011: 472011472012: 41412013: 382013382014: 90902015: 282015282016: 25252017: 19320171932018: 1091092019: 10520191052020: 28282021: 382021382022: 15152023: 9202392024: 882025: 4202542026: 33

n = 1,083 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2026 Acadia333%900
2025 Acadia46%—
2024 Acadia813%600
2023 Acadia920%9,757
2022 Acadia1531%28,000
2021 Acadia3825%4,800
2020 Acadia2826%1,700
2019 Acadia10527%26,000
2018 Acadia10928%32,000
2017 Acadia19327%34,504
2016 Acadia2511%47,783
2015 Acadia2812%50,000
2014 Acadia9019%72,000
2013 Acadia3828%65,000
2012 Acadia4114%84,000
2011 Acadia4717%75,000
2010 Acadia4513%67,640
2009 Acadia4714%70,000
2008 Acadia15318%86,000
2007 Acadia5713%91,232

When owners reported it

Peak: 2019, with 28 complaints
2018: 2201822019: 282019282020: 162020162021: 112021112022: 5202252023: 6202362024: 102024102025: 212025212026: 10202610

n = 109 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists electrical system for the 2018 GMC Acadia. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

I get error electric Steering assist reduced or unavailable drive with care at around 84234 miles on my car . Upon looking up problem on Internet it has to do with the Thermostat. I also found where Gm has a bulletin N252508350 which only seems to cover certain vehicles with the same problem. This…

Received Sep 29, 2026 · NHTSA complaint 11767917

Shift to park Malfunction again, 4 th time!! 1000$ to fix is ridiculous

Received Jun 8, 2026 · NHTSA complaint 11742706

Shift to park error Vehicle won’t shut off

Received May 21, 2026 · NHTSA complaint 11739392
GMC Acadia
Front view of a 2024 GMC Acadia Denali midsize crossover.. Representative photo; appearance varies by model year. Photo: Deathpallie325, CC BY-SA 4.0, via Wikimedia Commons.

Frequently asked questions

Do all 2018 GMC Acadias have electrical system problems?

No. NHTSA has 109 owner complaints about electrical system for the 2018 GMC Acadia (28% of the 396 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2018 GMC Acadia electrical system?

No recall currently lists electrical system for this vehicle.

At what mileage do electrical system problems start?

The median reported mileage is 32,000 miles: half of the reports with a mileage came before that.

What do owners say about electrical system problems on the 2018 GMC Acadia?

The most frequent phrase is “shift park”, in 72 of 109 complaints, followed by “turn off” (33).

Other 2018 GMC Acadia problems

See all 2018 GMC Acadia problems or electrical system problems across all Acadia years.