The Verdict
Worst problem area
Electrical
Electrical leads by volume: 3 of 7 complaints (43%) mention it.
Complaints filed fell from 12 in 2003 to 7 in 2004.
At a glance
- NHTSA complaints
- 7
- Recall campaigns
- 2
- EPA fuel cost per year
- $4,300
- Combined MPG
- 18
Complaints by model year
Where owners report problems
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Cost, Fuel Economy & Complaint History
| Category | 2002 | 2003 | 2004 | 2005 | 2006 | vs. 2004 Midsize Cars |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 4,300 | 4,300 | 4,300 | 4,300 | 4,300 | |
| Combined MPG | 18 | 18 | 18 | 18 | 18 | |
| City / Highway MPG | 16 / 23 | 16 / 22 | 16 / 22 | 16 / 22 | 15–16 / 22 | |
| CO₂ tailpipe (g/mi) | 494 | 494 | 494 | 494 | 494 | |
| Complaints filed | 20 | 12 | 7 | 4 | 0 | |
| Recalls issued | 1 | 1 | 2 | 3 | 1 | |
| Crash-involved complaints | 1 | 1 | 0 | 1 | 0 | |
| Fire-involved complaints | 0 | 0 | 0 | 0 | 0 | |
| Injuries reported | 1 | 1 | 0 | 1 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 1 | 1 | 1 | 1 | 2 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2004 Infiniti Q45 have?
2 NHTSA recall campaigns as of Nov 7, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2004 Infiniti Q45?
Electrical: 3 of 7 NHTSA complaints (43%) mention it.
What gas mileage does the 2004 Infiniti Q45 get?
EPA rates it 18 MPG combined.
How much does it cost to fuel a 2004 Infiniti Q45?
EPA estimates $4,300 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (1)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (S5) | 8 | 4.5L | Rear-Wheel Drive | Premium | Midsize Cars | 16 mpg | 22 mpg | 18 mpg | $4,300 | 494 g/mi |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 2 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 0 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 3 | 0 | 0 | 0 | 0 |
| Brakes | 1 | 0 | 0 | 0 | 0 |
| Steering | 2 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 0 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 0 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 2 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 2 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 2 | 0 | 0 | 0 | 0 |
| Other | 0 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (2)
AIR BAGS:SIDE/WINDOW
- Defect
- 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.
- Consequence
- NON-DEPLOYMENT OF SIDE AIR BAGS COULD INCREASE THE RISK OF PERSONAL INJURY.
- Remedy
- 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.
EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH
- Defect
- ON CERTAIN PASSENGER VEHICLES, THE BRAKE LAMP SWITCH MAY MALFUNCTION.
- Consequence
- IF THIS OCCURS, THE BRAKE LIGHTS WILL NOT ILLUMINATE WHEN THE BRAKE IS APPLIED, WHICH COULD RESULT IN A CRASH.
- Remedy
- DEALERS WILL REPLACE THE BRAKE LAMP SWITCH. THE RECALL BEGAN ON OCTOBER 25, 2004. OWNERS SHOULD CONTACT INFINITI AT 1-800-662-6200.