At a glance
What can fail
The front driver air bag inflator may not work correctly or could rupture when the air bag deploys due to a manufacturing defect.
What the fix does
Dealers will replace the front driver air bag inflators at no cost to you.
This page covers 2 recalls, 56 owner complaints and EPA fuel economy for the 2012 Infiniti Qx56.
16 mpg combined
14.7 L/100km
Sport Utility Vehicle - 4WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
For the 2012 Infiniti QX56, engine complaints make up the largest share of owner reports, with timing chain failure being the most consistently described problem. Owners report symptoms including violent shaking under acceleration, check engine lights, and loss of power, often diagnosed as a timing chain that needs replacement. Several owners also describe a high-pressure fuel pump leaking, which some link to accelerating engine wear. The fuel and propulsion system draws the next-highest complaint volume, with owners reporting hesitation, stalling, and catalytic converter failures triggering check engine warnings. Airbag complaints round out the top three reported systems, though at lower volume. The timing chain issue appears across multiple reports and tends to surface with specific trouble codes, rough running at lower speeds, and the vehicle becoming undrivable if left unaddressed.
56
Total Complaints
1
Crash-Related
By System
The 2012 Infiniti QX56 has two recalls of equal seriousness: a driver's airbag inflator that can rupture during deployment and send metal fragments into the cabin, and a fuel system that can leak and cause a fire.
The airbag inflator defect means the driver-side airbag may not deploy correctly in a crash, or it may burst and throw metal pieces toward the driver and other occupants. On the fuel side, a pressure sensor that may not have been fully tightened during production can loosen over time, allowing fuel to escape. If that leaked fuel contacts an ignition source, it can start a fire.
At a glance
What can fail
The front driver air bag inflator may not work correctly or could rupture when the air bag deploys due to a manufacturing defect.
What the fix does
Dealers will replace the front driver air bag inflators at no cost to you.
We may earn a commission for purchases made through these links.
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel pressure sensor may not have been tightened enough during manufacturing. It can loosen during normal driving and cause fuel to leak.
What the fix does
Dealers will re-tighten the fuel pressure sensor at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.