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Electrical systemPart report

1999 Infiniti QX4 Electrical system Problems

Complaints
5about this part
Share
12%of 43 total for the year
Median mileage
179,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the electrical system of the 1999 Infiniti QX4, 12% of the 43 complaints for this model year. Where a mileage was given, the median is 179,500 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.

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.

“The ignition key, at times, would not rotate so as to allow the driver to start the vehicle. Vehicle was repaired by an Infiniti dealer who could not explain what was wrong with the ignition key or assembly, or why the part failed. As a safety issue I asked Infiniti USA to look into the matter and they pretty much gave me the brush-off without any explanation. I see this a a major safety issue considering a person(s) could be stranded in any weather conditions if the ignition did not allow them to start the vehicle. …”

NHTSA complaint #10446714, filed 2012-02, 104,000 miles

“1. Stereo amplifier fuse blew. (15 amp) 2. Fuse replaced 3. While driving the car smelled smoke. 4. All dash lights and electrical system went black. 5. Smoke started coming from under the dash board. 6. Car remained running, head lights functioned. 7. After turning the car off, large amounts of smoke came from behind and under the dash board. 8. Car would not start and all electrical system non responsive. 9. Inspection of dash wiring harness revealed extreme melting and damage to interior wiring harness in the area of the fuse box and all connections to electrical systems. 10. …”

NHTSA complaint #10467900, filed 2012-07, 160,000 miles

“The contact owns a 1999 Infiniti QX4. While driving approximately 30 MPH, the contact lost control of the steering causing him to crash into a pole. The vehicle sustained damage to the front driver side. There were no injuries. The vehicle was towed to an auto shop where the mechanic advised that the steering shaft had fractured and caused the contact to lose control of the vehicle. The vehicle was repaired. The approximate failure mileage was 199,000. Updated 06/14/2012”

NHTSA complaint #10436022, filed 2011-11, 199,000 miles

“Consumer stated o2 sensor was causing check engine light to come on and stay on. This has been going on for the last 6 months. Consumer took the vehicle to the mechanic, and was subjected to having a wiring harness installed. Consumer had that done, but it did not solve the problem. They were talking about another $1200.00 to repair something else.”

NHTSA complaint #10095000, filed 2004-10

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
200225%
200123%
2000311%
1999512%

Other parts of the 1999 Infiniti QX4

Steering
14 complaintsSuspension
14 complaintsBody and structure
8 complaintsFuel system
6 complaintsEngine cooling
3 complaintsTransmission and drivetrain
3 complaintsAir bags
2 complaintsBrakes
2 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine
1 complaints

← All problems reported for the 1999 Infiniti QX4

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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