2003 Infiniti Q45 Problems, Complaints & Recalls
- Compared with other Q45 years
- More complaints than other years 3rd of 12 for complaints
- Safety recalls
- 1 recall: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 12 complaints with NHTSA about the 2003 Infiniti Q45. That ranks 3rd out of 12 Q45 model years for complaints. The most reported problem area is engine (6 complaints, 50%), typically at around 103,000 miles. Complaints mention 1 crash, 1 injury. There is 1 safety recall covering this model year. NHTSA has opened 2 defect investigations involving it.

- 12owner complaints
- 1safety recalls
- 2NHTSA investigations
- 1complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2003 Infiniti Q45 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Engine | 6 | 50% | 103,000 | — | — |
| Electrical System | 3 | 25% | 100,000 | — | — |
| Steering | 3 | 25% | 92,000 | — | — |
| Electronic Stability Control (esc) | 2 | 17% | 110,601 | — | — |
| Engine and Engine Cooling | 1 | 8% | 61,000 | — | — |
| Power Train | 1 | 8% | 186,241 | — | — |
| Seat Belts | 1 | 8% | — | — | — |
| Service Brakes | 1 | 8% | 110,202 | — | — |
| Service Brakes, Electric | 1 | 8% | 40,100 | — | — |
| Vehicle Speed Control | 1 | 8% | 186,241 | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2003 Infiniti Q45 recalls (1)
Tap a recall to see the problem, the risk and the fix.
Air bags:side/window
Problem: Nissan is recalling certain model year 2003-2005 infiniti q45 vehicles. A wiring connector for the seat mounted airbag may experience increased electrical resistance, resulting in the non-deployment of the side air bags.
Risk: Non-deployment of side air bags could increase the risk of personal injury.
Fix: Nissan will notify owners, and dealers will modify the wiring connector, free of charge. The safety recall began on march 19, 2012. Owners may contact nissan customer service at 1-800-647-7261.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
NHTSA defect investigations
- Non-deployment of Side Thorax Air Bags (EA09005) — opened Apr 1, 2009, closed Apr 3, 2012, led to recall 12V079000.
- Side air bag non-deployment (PE08067) — opened Dec 2, 2008, closed Apr 1, 2009.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
The circuit board for crank position sensor and cam position sensor have improper solder joints. This has caused the service engine light to come on, the engine may not start, power reduces, engine stalls at a traffic light or while in motion, on a city street or highway or while making a turn…
Tl* the contact owns a 2003 infiniti q45. While driving 35 mph, the vehicle stalled and the service engine warning indicator illuminated. The contact was able to restart the vehicle after several attempts. The vehicle was taken to an independent mechanic where it was diagnosed that the camshaft…
Tamara recalled my seatbelt light has been on for the last year. I were told by the infinity dealer that my car was not recall for the seatbelt. The seatbelt warning light stays on constantly in the navigation system and a little blanking icon. I am told by the dealer that i am responsible for…
Tl* the contact owns a 2003 infiniti q45. While driving various speeds, the engine stalled without warning and all power was lost. After several attempts, the vehicle was able to restart. The failure recurred randomly. The vehicle was taken to a dealer where the failure could not be determined. The…
Start car first thing in the am. Driving normal. Within 5 miles engine shuts off without warning. Loose all power. No code appears. Auto will not start. Finally starts after 5 or 6 tries. This problem has continued to occur every two or three days over the last six months. But auto starts…
Other Infiniti Q45 years
| Year | Complaints | Recalls |
|---|---|---|
| 2006 Q45 | 0 | 1 |
| 2005 Q45 | 4 | 3 |
| 2004 Q45 | 7 | 2 |
| 2003 | 12 | 1 |
| 2002 Q45 | 20 | 1 |
| 2001 Q45 | 5 | 1 |
| 2000 Q45 | 9 | 1 |
| 1999 Q45 | 9 | 0 |
| 1998 Q45 | 14 | 3 |
| 1997 Q45 | 12 | 3 |
| 1996 Q45 | 7 | 0 |
| 1995 Q45 | 7 | 0 |
See all Infiniti Q45 problems by year, every Infiniti model, or the Infiniti VIN decoder.
Similar Infiniti models
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Frequently asked questions
What are the most common problems with the 2003 Infiniti Q45?
Owners most often report engine, electrical system, steering problems. The top one, engine, accounts for 6 complaints.
Was there a recall on the 2003 Infiniti Q45?
Yes, 1 safety recall. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2003 Infiniti Q45 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Q45 model years, the 2003 has more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.