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Electrical systemPart report

2018 Acura MDX Electrical system Problems

Complaints
28about this part
Share
17%of 169 total for the year
Median mileage
28,500miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 28 complaints about the electrical system of the 2018 Acura MDX, 17% of the 169 complaints for this model year. Where a mileage was given, the median is 28,500 miles. 1 of these say a crash was involved and 2 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Multiple times I have been traveling on the highway and my car would suddenly decrease in speed and stall out. I would go from 75mph to 45mph very quickly. It would then suddenly accelerate again and go back to normal. This is extremely dangerous and could lead to a deadly accident.”

NHTSA complaint #11390353, filed 2021-01, 45,000 miles

“After switching to drive from reverse the nav display would not switch back from the back up camera while driving ahead, when a car would be anywhere near mine on the road, still in drive, whether idle at a stop light or in motion on the street, the back up sensors that respond to passing cars did not beep. I tried pressing the back button, nav button, settings button & turning the car on/off all failing to fix the problem. The camera remained on even while in park once I arrived home.”

NHTSA complaint #11129434, filed 2018-09, 2,500 miles

“Nine different electrical failures in twenty seven weeks on a new 2018 Acura MDX technology package. That's one failure every three weeks. Six problems have occurred one time, three problems are still intermittent, the most concerning is the heated seat feature. The circuit closes without activation. Occasionally when the vehicle is started, the LED indicator lights are on. Several times it has affected the drivers seat, once the passenger seat, and once both seats. Once the vehicle was put in reverse, the rear camera activated and continued to work as I drove forward to my destination. …”

NHTSA complaint #11171427, filed 2019-01, 5,600 miles

“Odometer Fraud. The contact purchased a 2018 Acura MDX on August 26, 2026. While registering the vehicle, the contact was informed that the previous title indicated that the odometer was reported at 277,000. The vehicle was a private sale. At the time of purchase, the mileage was 77,000.”

NHTSA complaint #11769279, filed 2026-10, 277,000 miles

“Odometer Fraud. The contact purchased a 2018 Acura MDX. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the mileage was 85,000. The contact stated that on the day of the purchase; after refueling the vehicle and then attempting to pull out of the gas station, the Emissions, check engine, and parking brake warning lights illuminated on the instrument panel. …”

NHTSA complaint #11730103, filed 2026-04, 225,802 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026333%
20255447%
20241229%
2023819%
20222013%
20204118%
20194222%
20182817%
20174618%
20163810%
20151521%
20142716%
2013827%
20121317%
2011710%
2010920%
20091835%
2008816%
20075152%
200689%
20051810%
20042112%
2003189%
2002126%
200163%

Other parts of the 2018 Acura MDX

Fuel system
51 complaintsEngine
35 complaintsForward collision avoidance
23 complaintsTransmission and drivetrain
23 complaintsOther or unknown
21 complaintsEngine cooling
19 complaintsLane departure
18 complaintsVehicle speed control
14 complaintsBrakes
9 complaintsVisibility (wipers, defrost, mirrors)
8 complaintsExterior lighting
5 complaintsSeats
4 complaints

← All problems reported for the 2018 Acura MDX

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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