2003 Infiniti Q45: Recalls, Problems & MPG
Here are the deets on the 2003 Infiniti Q45: 1 recall, 12 owner complaints and up to 18 mpg combined.
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Recalls
1 vehicle recall from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Airbags Vehicle recall #12V079000 · 2012 · 1,349 vehicles
What's wrong: A wiring connector for the seat mounted airbag May experience increased electrical resistance, resulting in the non-deployment of the side air bags.
Why it matters: Non-deployment of side air bags could increase the risk of personal injury.
The fix: Nissan will notify owners, and dealers will modify the wiring connector, free of charge. The safety recall began on March 19, 2012.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 1 injuries and 0 deaths were reported.
What owners describe
- Engine (6): the most common themes are stalls / loses power (5).
- Electrical (3): the most common themes are stalls / loses power (3).
- Steering (3): the most common themes are steering problems (3).
- Stability control (2): the most common themes are stalls / loses power (2).
The 2003 Infiniti Q45 has 12 owner complaints, ranking #8 of 17 Q45 model years for complaints (about average; the typical year has 13). Complaints peaked in 2015 (3 filed that year). The typical problem showed up when the car was about 11 years old, at a median of 100,000 miles. Neighboring years: 2002 (20 complaints, 1 recalls), 2004 (7 complaints, 2 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 4.5 L 8-cyl | Automatic (S5) | Rear-Wheel Drive | 16 | 22 | 18 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2003 Infiniti Q45.
Closest thing to the factory manual for most years. Pay once, keep it.
Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
From $19.99/mo · $39.99/yrOEM procedures, specs and recall/TSB info, the same source many shops use.
From $19.99/mo · $59.99/yrStep-by-step photos written from a real teardown. Great for first-timers.
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FAQ
Does the 2003 Infiniti Q45 have any recalls?
Yes. NHTSA lists 1 vehicle recall for the 2003 Infiniti Q45. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2003 Infiniti Q45 problems?
Owners have filed 12 complaints with NHTSA. The most-reported areas are engine (6), electrical (3), steering (3).
What gas mileage does the 2003 Infiniti Q45 get?
EPA ratings run up to 18 mpg combined (4.5 L, Automatic (S5)), across 1 engine and transmission combos.
Where can I get a 2003 Infiniti Q45 repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.