2004 Infiniti Q45
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2004 Infiniti Q45 is worth — from official NHTSA and EPA data. 5 on record.
2004 Infiniti Q45 at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2004 Infiniti Q45 recalls 2
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.
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.
ON CERTAIN PASSENGER VEHICLES, THE BRAKE LAMP SWITCH MAY MALFUNCTION.
Fix: DEALERS WILL REPLACE THE BRAKE LAMP SWITCH. THE RECALL BEGAN ON OCTOBER 25, 2004. OWNERS SHOULD CONTACT INFINITI AT 1-800-662-6200.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
2004 Infiniti Q45 common problems
The most-reported problem areas across all 7 owner complaints filed with NHTSA — and what to check before you buy.
2004 Infiniti Q45 MPG & running costs
Source: U.S. EPA / DOE fueleconomy.gov.
What's a 2004 Infiniti Q45 worth?
Estimated 5-year cost to own
A rough guide to what running a 2004 Infiniti Q45 costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. Depreciation compares today's typical asking price for this model year ($5,480) with the same model 5 model-years older ($1,020), from CarLogs listing data. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Dimensions & weight
Manufacturer-reported figures for the 2004 Infiniti Q45. Source: Transport Canada vehicle specifications via NHTSA.
Investigations & service bulletins
NHTSA defect investigations 2
Non-deployment of Side Thorax Air Bags Closed
The subject vehicles are equipped with seat-mounted, side thorax air bags for the driver and front passenger. This investigation revealed that faulty side air bag module electrical connectors located under the driver and front passenger seats can cause an interruption in the electrical circuit that will drop the input voltage below the specified range. As a result, the air bag warning lamp illuminates on the instrume…
NHTSA #EA09005 · Air Bags · opened Apr 2009 · closed Apr 2012SIDE AIR BAG NON-DEPLOYMENT Closed
THE SUBJECT VEHICLES ARE EQUIPPED WITH SEAT-MOUNTED, SIDE TORSO AIR BAGS FOR THE DRIVER AND FRONT PASSENGER. THIS INVESTIGATION HAS REVEALED THAT FAULTY SIDE AIR BAG MODULE CONNECTORS LOCATED UNDER THE FRONT SEATS CAN CAUSE AN INTERRUPTION IN THE ELECTRICAL CURRENT THAT WILL DROP THE INPUT VOLTAGE BELOW THE SPECIFIED RANGE. AS A RESULT, THE AIR BAG WARNING LAMP ILLUMINATES AND THE AFFECTED SIDE AIR BAG IS DEACTIVATED…
NHTSA #PE08067 · Air Bags · opened Dec 2008 · closed Apr 2009An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.
Manufacturer service bulletins 54
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 54.
CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement “Certification Label” or “VIN Plate/Label” may be needed. HINT: Certification Label = FMVSS (Federal Motor Vehicle Safety Stand…
Bulletin ITB09-063C · Structure · Apr 2026INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB13-052E · Electrical System · May 2024WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB17-009H · Visibility/wiper · Apr 2024REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB13-007I · Visibility/wiper · Apr 2024WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB09-039K · Visibility/wiper · Apr 2024REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB13-007H · Structure, Visibility · Feb 2023WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB09-039J · Visibility, Structure · Feb 2023WHEEL BEARING COLLISION DAMAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB10-067C · Wheels · Feb 2023INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB16-006A · Electrical System · Mar 2021NAVIGATION MAP DATA UPDATE MATRIX This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Bulletin ITB11-003F · Electrical System · Mar 2021Source: NHTSA Office of Defects Investigation, listed for the Q45. Model-year data, not specific to one car.
Canadian recalls 2
Transport Canada recall campaigns for the 2004 Infiniti Q45. Relevant if the car was first sold in, or imported from, Canada.
Airbag
Certain vehicles may develop increased electrical resistance in the intermediate connector for the seat-mounted side airbags. As a result, the airbags may not function as intended, causing the instrument panel warning lamp to illuminate. Failure of the side airbags to deploy during a crash (where deployment is warranted) could increase the risk of personal injury to the seat oc…
Transport Canada #2012069 · Feb 2012Lights And Instruments
Certain vehicles fail to comply with the requirements of CMVSS 108 pertaining to stop lamps and reflex reflectors. Correction: Dealers will install updated rear combination lamp assemblies.
Transport Canada #2006261 · Oct 2006Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the Infiniti Q45
The Infiniti Q45 is a full-size luxury sedan that was marketed by the Infiniti division of Nissan from the 1990 to 2006 model years. The inaugural product line and flagship sedan of the brand, the Q45 competed directly against the Acura Legend and Lexus LS 400, as multiple Japanese automobile manufacturers began to establish dedicated luxury-vehicle brands in North America during the late 1980s.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.
