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Electrical systemPart report

2018 Infiniti QX30 Electrical system Problems

Complaints
10about this part
Share
40%of 25 total for the year
Median mileage
20,050miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 10 complaints about the electrical system of the 2018 Infiniti QX30, 40% of the 25 complaints for this model year. Where a mileage was given, the median is 20,050 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“Purchased the car brand new two months ago. Discovered the left hatch harness cover is crushed. Was told by Infiniti regional manager everything electrical is run thorough that harness and every time the hatch is opened and closed the wiring is getting pinched. Already have had the car to the dealership for black backup screen, audio problems, lights not turning off, radio not shutting off after car is turned off and door is opened. Was told that was a software problem and that the software has been updated. Infiniti won't replace the wiring since nothing major has happened yet. …”

NHTSA complaint #11123544, filed 2018-08, 2,200 miles

“The auxiliary battery located underneath the interior glove compartment went dead and the car was inoperable. I called Infinity and they would not help me. There was no information relating to this small battery either on internet or Infinity website. I finally had to have a friend drive me to the Coconut Creek Infinity service where they could not give me information but could repair only. The seatbelt on both driver and passenger continually lock up causing undo constriction and stress on eithr passenger. …”

NHTSA complaint #11534412, filed 2023-07

“Hello, My 2018 Infiniti QX30 slips into neutral while driving on the road at high speeds and without any warning. The message on the dash is vague “Service required. Do not shift gears. Visit Dealer.” I almost got into an accident more than once while driving the vehicle as low power to the vehicle accompanies this when it happens. I had absolutely no problems with the vehicle leading up to the first occurrence. In fact, I bought the car with less than 10k miles on it from Infiniti directly, where it was a fleet loner vehicle and well maintained. …”

NHTSA complaint #11611876, filed 2024-08

“The vehicle, with low mileage and no accidents, has had a few engine-related issues over the last few months. Recently, I went to turn it on, and many components of the car wouldn't work (no parking, power steering, engine issues, seats won't move, etc.). I live in a very dangerous city, and my car not working has placed me in a dangerous concern for my well-being. I took it to certified Infiniti dealer who said that the entire electrical harness has been damaged, rendering the vehicle a safety hazard, and quoted me $19,000 in repairs. …”

NHTSA complaint #11529022, filed 2023-06

“A variety of dashboard lights illuminated including engine light, ABS, emergency brake failure message etc. Vehicle drove as if power steering had failed. When I brought the car in to the Dealer I was told that the vehicle displayed codes for two concerns: 1) air quality sensor and 2) all 4 wheel speed sensors. The wheel speed sensors had previously been replaced in 2019 while the car was still under warranty. Current estimate for the repair was over $3200. Ultimately, Infiniti corporate paid for the current repair stating these items were “under warranty’ from previous repair. …”

NHTSA complaint #11462066, filed 2022-04

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
20181040%
2017824%

Other parts of the 2018 Infiniti QX30

Air bags
5 complaints
Other or unknown
5 complaints
Steering
5 complaints
Engine
4 complaints
Brakes
3 complaints
Transmission and drivetrain
3 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Back-over prevention (rear camera)
1 complaints
Electronic stability control
1 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints
Forward collision avoidance
1 complaints

← All problems reported for the 2018 Infiniti QX30

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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