Problems · NHTSA complaints
2001 Infiniti Q45 problems
Owners filed 4 complaints about the 2001 Infiniti Q45 with NHTSA between Aug 2003 and Jan 2007. The most-cited component is electrical system (2).
Complaints
4
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Electrical system2
- Child seat1
- Vehicle speed control1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 30, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
2
0
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 0 |
| 2006 | 0 |
| 2007 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Electrical system
2 reports
“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. *NM UPDATED 03/02/07. *JB”
Child seat
1 report
“CHILD SAFETY SEAT FAILURE, HARNESS ADJUSTER FAILS TO PROPERLY TIGHTEN. *BF *SC *JB”
Vehicle speed control
1 report1 crash
“WHEN THE CONSUMER PLACED THE VEHICLE IN THE REVERSE GEAR THE VEHICLE ACCELERATED SUDDENLY AND CAUSED AN ACCIDENT. *AK *CB *NLM”
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.