AI Damage2001 Infiniti Q45: common problems
Owners of the 2001 Infiniti Q45 filed 5 complaints with NHTSA, most often about electrical system and child seat. Details by component below, with sources.
Key figures
- Owner complaints
- 5
- involving a crash
- 1
What fails most often
- 1 Electrical system 40% of all complaints
- 2 Child seat 20% of all complaints
- 3 Seat belts 20% of all complaints
- 4 Vehicle speed control 20% of all complaints
- Electrical system: 2 complaints (40% of all).
- Child seat: 1 complaints (20% of all).
- Seat belts: 1 complaints (20% of all).
- Vehicle speed control: 1 complaints (20% of all), 1 of them with a crash reported by the owner.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 4.1 L · petrol · 8 cyl
- automatic, 4-speed
Drive: RWD
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 2 | 0 | 0 |
| Child seat | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Vehicle speed control | 1 | 1 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
When the consumer placed the vehicle in the reverse gear the vehicle accelerated suddenly and caused an accident.
While the vehicle was parked, the contact became aware that the driver's seat belt strap was shredding. The vehicle was taken to the dealer at the manufacturer's request. The contact was informed that the seat belt strap needed to be replaced and that the part was ordered. The vehicle was not repaired.
Tl* - the contact stated that during 2006 they replaced the alternator in her 2001 infiniti q45. The contact is concerned because she was informed of a recall in canada for a similar failure. The current odometer reading is 79000. Updated 03/02/07.
Vehicle experiences a total electrical shutdown. First occasion was after a 6 hour drive and shut down in the parking lot. Vehicle was transported 100 miles to nearest infinity dealership, alternator checked out, recharged the battery and returned the vehicle.
Child safety seat failure, harness adjuster fails to properly tighten.
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 14,282 of 36,656 model years in the NHTSA data (top 39% most complained about).
On average one model year of the Q45 has 14 complaints (16 years in the data). This year has 5, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Seat belts. Belt pretensioners after airbag deployment, SRS codes.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
Other years of this model
Questions and answers
What are the most common problems with the 2001 Infiniti Q45?
Owner complaints to NHTSA most often mention: electrical system, child seat, seat belts. Total complaints: 5. The most frequent symptoms in complaint texts: seat belts (20%).
How many service bulletins (TSB) were issued for the 2001 Infiniti Q45?
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 2001 Infiniti Q45 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 2001 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.