Problems · NHTSA complaints

2009 Infiniti QX56 problems

Owners filed 7 complaints about the 2009 Infiniti QX56 with NHTSA between Mar 2015 and Apr 2023. The most-cited component is suspension (3).

Complaints
7
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Suspension3
  2. Electrical system2
  3. Fuel system, other1
  4. Steering1
  5. Exterior lighting1
  6. Electronic stability control (esc)1
  7. Service brakes1
  8. Structure1
  9. Air bags1
  10. Fuel/propulsion system1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 11, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20151
20160
20172
20182
20190
20200
20210
20221
20231

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Suspension

3 reports1 related recall
“The contact owns a 2009 Infiniti QX56. The contact while driving approximately 25 MPH, there was swaying in the rear of the vehicle. The contact also stated that the fuel gauge was not operating properly after the fuel tank was filler. Additionally, there was an unknown failure with the rear suspension. The tire failure warning light was illuminated. The contact stated that an independent mechanic diagnosed the vehicle with rear suspension failure. The vehicle was not repaired. The manufacturer was notified of the failure. The contact stated that the VIN was not included in NHTSA Campaign Number: 21V402000 (Suspension, Steering). The approximately failure mileage was 167,000.”
Owner complaint to NHTSAFiled Jul 14, 2022Steering, SuspensionODI 11473908

Electrical system

2 reports
“I WAS DRIVING ON INTERSTATE 435 W. IN KANSAS CITY KANSAS. IT WAS ABOUT 4:15 AM TRAVELING AT 70-72 MPH MY VISIBILITY WAS OK BUT I THOUGHT THAT IF I USE MY HIGHBEAM IT WOULD BE BETTER. AS SOON AS I CLICKED HIGH BEAM ON MY CAR INSTANTLY TURNED OFF. MY HEADLIGHTS MY INTERIOR LIGHTS AND MY RADIO POWERED OFF. AS A PANIC REACTION SINCE I HAD ZERO VISIBILITY AND IT WAS DARK OUTSIDE MY FOOT THE BRAKES. AS I REMEMBER MY SIBAL HAD ALREADY TIGHTENED UP BEFORE HITTING THE BRAKES BUT BEFORE I COULD REALIZE IT MY CAR PART POWERED BACK ON BY ITSELF WITHOUT ME DOING ANYTHING I LOOK AT MY SPEEDOMETER AND I WAS GOING ABOUT 67-69. WHEN MY CAR POWERED ON IT SEEMS AS IF IT REZONED AS IF NOTHING HAD HAPPENED NOW I BELIEVE IF I WAS IN KANSAS CITY KANSAS RUSH-HOUR I WOULD HAVE CAUSED A SEVERE ACCIDENT . EVEN THOUGH IT WAS MAYBE FOR A SECOND OR TWO THAT MY CAR HAD POWERED OFF IT WAS MORE THAT MY CAR CAME TO A COMPLETE STOP AND I BELIEVE WITH EVERYTHING THAT WAS ELECTRICAL THEY HAVE POWER IT OFF I DON'T BELIEVE THAT MY BRAKE LIGHTS WOULD HAVE WORKED AS WELL. IF THAT WERE THE CASE I WOULD'VE NEVER HAVE GAVE THE DRIVER BEHIND ME ANY KIND OF WARNING FOR THEM TO BE ABLE TO SLOW DOWN. LUCKILY…”
Owner complaint to NHTSAFiled Nov 17, 2018Electrical system, Exterior lighting, Electronic stability control (esc)ODI 11152139

Fuel system, other

1 report1 related recall
“The contact owns a 2009 Infiniti QX56. The contact stated while driving 65 MPH, the fuel gauge indicated that there was no fuel remaining, and the vehicle lost motive power and stalled. The contact was able to pull over on the side of the road. The vehicle was towed to an independent mechanic and the mechanic stated that the vehicle had experienced the failure listed in NHTSA Campaign Number: 10V074000 (Fuel System, Other). The vehicle was repaired. The manufacturer was contacted, and the manufacturer stated that the vehicle was not included in the recall. The failure mileage was 156,193.”
Owner complaint to NHTSAFiled Apr 20, 2023Fuel system, otherODI 11518148

Steering

1 report

Exterior lighting

1 report

Electronic stability control (esc)

1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.