AI DamageInfiniti M45: problems, complaints, bulletins
Summary for the Infiniti M45 across 7 model years: 280 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Fuel system 36% of all complaints
- 2 Engine 19% of all complaints
- 3 Electrical system 13% of all complaints
- 4 Air bags 10% of all complaints
- 5 Seats 9% of all complaints
- 6 Steering 9% of all complaints
- 7 Engine and cooling 8% of all complaints
- 8 Vehicle speed control 4% of all complaints
- Fuel system: 101 complaints (36% of all).
- Engine: 53 complaints (19% of all).
- Electrical system: 37 complaints (13% of all).
- Air bags: 28 complaints (10% of all).
- Seats: 26 complaints (9% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 4.5 L · petrol · 8 cyl 2003–2010named in 1 complaints
- automatic, 5-speed 2003–2010
Drive: RWD, AWD
Symptoms owners describe
How many of the 280 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) |
|---|---|---|---|
| Fuel system | 101 | 0 | 0 |
| Engine | 53 | 0 | 0 |
| Electrical system | 37 | 0 | 0 |
| Air bags | 28 | 0 | 0 |
| Seats | 26 | 0 | 0 |
| Steering | 25 | 0 | 0 |
| Engine and cooling | 21 | 0 | 0 |
| Vehicle speed control | 12 | 3 | 0 |
| Powertrain | 9 | 0 | 0 |
| Fuel/propulsion system | 8 | 0 | 0 |
| Structure | 8 | 0 | 0 |
| Visibility | 6 | 0 | 0 |
| Suspension | 5 | 0 | 0 |
| Tires | 5 | 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.
Ltr fwd (wv) re sudden unintended acceleration experienced by owner of a 2009 infiniti m45. The consumer stated the vehicle accelerated out of control knocking down a prized river birch and coming to rest against a cedar tree.
Knocked over birch tree and bird bath and then drove through some shrubs and a hit cedar tree. Updated ivoq 02/05/10 the consumer wanted to know the status of the complaint. Updated 03/08/10 updated 03/12/10
Suddenly with my foot still on the brake the vehicle surged forward, jumped the concrete parking barracde and then proceeded over the curb, down a 3 foot drop crashing into the ground and then hitting the corner of a brick condominium. There was no injury. I was alone in the vehicle. No air bag deployed.
The contact stated that on several occasions while driving at various speeds, the fuel gauge failed to read the fuel level correctly and the vehicle stalled. The vehicle was towed several times to a dealer and independent mechanic however, the fuel gauge sensor could not be replaced.
The contact stated that the air bag warning light was illuminated. The vehicle was taken to the dealer for a diagnostic test. The contact stated that the driverâs side module needed to be replaced. The driverâs side air bag module was replaced. The manufacturer was contacted, and a case was filed.
The contact stated while driving approximately 40 MPH, the vehicle stalled while driving downhill. The contact stated that several unknown warning lights were illuminated. The contact stated that the vehicle lost power steering and braking functionality.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- 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.
Other models of this make
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.