AI Damage2009 Infiniti QX56: common problems
Owners of the 2009 Infiniti QX56 filed 7 complaints with NHTSA, most often about suspension and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 7
What fails most often
- 1 Suspension 43% of all complaints
- 2 Electrical system 29% of all complaints
- 3 Air bags 14% of all complaints
- 4 Electronic stability control 14% of all complaints
- 5 Exterior lighting 14% of all complaints
- 6 Fuel/propulsion system 14% of all complaints
- 7 Fuel system 14% of all complaints
- 8 Service brakes 14% of all complaints
- Suspension: 3 complaints (43% of all).
- Electrical system: 2 complaints (29% of all).
- Air bags: 1 complaints (14% of all).
- Electronic stability control: 1 complaints (14% of all).
- Exterior lighting: 1 complaints (14% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 5.6 L · petrol · 8 cyl
- automatic, 5-speed
Drive: RWD, AWD
Symptoms owners describe
How many of the 7 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Suspension | 3 | 0 | 0 |
| Electrical system | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
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 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.
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…
My 2009 infiniti qx56 has a serious issue with the rear suspension that started about a year after I got the car when it was at about 100,000 miles and has gotten worse, even though repair shops and dealer keep telling me it's 'fine'...
Tl* the contact owns a 2009 infiniti qx56. After grocery shopping, the contact opened the trunk with the remote. While putting the groceries inside the trunk, the trunk automatically closed without warning. The contact was able to stop the trunk from falling down with her hands.
The airbag does not work on the steering column the dealer says it's due to a cold spring on the backside of the airbag that allows electricity to go through it to make it work and once over $1000 to replace the coil- spring in order to make the airbag work which is connected to all the other safety airbags in the…
The fuel gauge still read 1/4. I have noticed this several times, that I know I am near empty based on mileage but my gas gauge still reads 1/4. I found a recall on-line that states that this car is affected but when I contact nissan na and my dealer, both say, based on my vin, there is no recall.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 12,538 of 36,656 model years in the NHTSA data (top 34% most complained about).
On average one model year of the QX56 has 54 complaints (10 years in the data). This year has 7, below average.
What to check before buying
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
Other years of this model
Questions and answers
What are the most common problems with the 2009 Infiniti QX56?
Owner complaints to NHTSA most often mention: suspension, electrical system, air bags. Total complaints: 7. The most frequent symptoms in complaint texts: fuel system, fuel smell (43%), stalls while driving (29%), headlights and tail lights (14%).
How many service bulletins (TSB) were issued for the 2009 Infiniti QX56?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2009 Infiniti QX56 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2009 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.