Most common 2009 Infiniti M45 problems
Share of the 2 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Infiniti M45 complaints by model year
Best M45 years: 2010, 2009, 2008. Years to avoid: 2003, 2006, 2004. Compare all years →
2009 Infiniti M45 recalls (5)
Air bags › Frontal › Passenger side › Inflator module
Nissan North America, Inc. (Nissan) is recalling certain 2001-2003 Maxima, 2002-2006 Sentra, 2002-2004 Pathfinder, 2007-2011 Versa Sedan and Versa Hatchback, 2001-2004 Infiniti I30 and I35, 2002-2003 Inifiniti QX4, 2003-2008 Infiniti FX35 and FX45 and 2006-2010 M35 and M45 vehicles.
Remedy: Nissan will notify owners, and dealers will replace the front passenger air bag inflators with alternate desiccated inflators, free of charge. The recall began February 12, 2020.
Air bags › Frontal › Passenger side › Inflator module
Nissan North America, Inc. (Nissan) is recalling certain 2012 Nissan Versa hatchbacks originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan) and the U.S.
Remedy: Nissan will notify owners, and dealers will replace the front passenger air bag inflators, free of charge. The recall began on June 8, 2017. Owners will receive a second notice when remedy parts become available.
Air bags › Frontal › Passenger side › Inflator module
Nissan North America, Inc. (Nissan) is recalling certain model year 2003-2008 Infiniti FX35 and FX45, 2003-2004 Infiniti I35, 2006-2010 Infiniti M35 and M45, and 2007-2011 Nissan Versa vehicles, originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas,…
Remedy: Nissan will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began December 21, 2017. All owners should receive a second notice by May 15, 2017.
Vehicle speed control › Accelerator pedal
Nissan North America, Inc. (Nissan) is recalling certain model year 2006-2010 Infiniti M35 and M45 vehicles manufactured April 4, 2004, through October 5, 2010. Over time, the accelerator pedal sensor signal may deteriorate resulting in the output of an incorrect signal causing the engine to go into fail-safe (limp home) mode.
Remedy: Nissan will notify owners, and dealers will replace the accelerator pedal assembly and reprogram the engine control module, free of charge. The recall is expected to begin during November 2013.
Tires › Pressure monitoring and regulating systems
Nissan is recalling certain model year 2008-2010 vehicles originally sold in or currently registered in the states of connecticut, delaware, iowa, illinois, indiana, massachusetts, maine, maryland, michigan, minnesota, missouri, new hampshire, new jersey, new york, ohio, pennsylvania, rhode island, vermont, washington d.c.,…
Remedy: The dealer will replace the TPMS nut with a new, more robust nut. This service will be performed free of charge. The recall is expected to begin on or before November 9, 2009.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2009 Infiniti M45:
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited.
2009 Infiniti M45 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.5L 8-cyl | 5-speed automatic | RWD | 16 / 21 / 18 |
| 4.5L 8-cyl | 5-speed automatic | 4WD/AWD | 14 / 20 / 16 |
EPA ratings. Class: Large car.
Frequently asked questions
Is the 2009 Infiniti M45 a good car?
Based on 2 owner complaints filed with NHTSA, the 2009 M45 rates better than average: 85% fewer complaints than a typical year of the M45 at the same age. It is one of the best M45 years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2009 Infiniti M45?
The speed control & acceleration — 2 complaints, 100% of all complaints for this model year, most often about accelerator pedal.
How many recalls does the 2009 Infiniti M45 have?
There are 5 recalls for the 2009 Infiniti M45, the most recent from January 9, 2020 (inflator module). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Infiniti M45?
The best years by complaints, compared at the same age, are 2010, 2009 and 2008. Years to avoid or approach with caution: 2003, 2006 and 2004. See the full Infiniti M45 years comparison.
At what mileage do 2009 Infiniti M45 problems happen?
The median mileage reported in complaints is about 1,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.