2005 Infiniti Q45
The Verdict
Worst problem area
Electrical
Electrical leads by volume: 1 of 4 complaints (25%) mentions it.
Complaints filed fell from 7 in 2004 to 4 in 2005.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2003 | 2004 | 2005 | 2006 | vs. 2005 Midsize Cars |
|---|---|---|---|---|---|
| Annual fuel cost ($) | 4,300 | 4,300 | 4,300 | 4,300 | |
| Combined MPG | 18 | 18 | 18 | 18 | |
| City / Highway MPG | 16 / 22 | 16 / 22 | 16 / 22 | 15–16 / 22 | |
| CO₂ tailpipe (g/mi) | 494 | 494 | 494 | 494 | |
| Complaints filed | 12 | 7 | 4 | 0 | |
| Recalls issued | 1 | 2 | 3 | 1 | |
| Crash-involved complaints | 1 | 0 | 1 | 0 | |
| Fire-involved complaints | 0 | 0 | 0 | 0 | |
| Injuries reported | 1 | 0 | 1 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | |
| Configurations compared | 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 2005 Infiniti Q45 have?
3 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What gas mileage does the 2005 Infiniti Q45 get?
EPA rates it 18 MPG combined.
How much does it cost to fuel a 2005 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 | 0 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 0 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 1 | 0 | 0 | 0 | 0 |
| Brakes | 0 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 1 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 1 | 1 | 0 | 1 | 0 |
| Driver Assistance & Speed Control | 1 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 1 | 1 | 0 | 1 | 0 |
| Visibility & Lighting | 0 | 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 (3)
AIR BAGS:SIDE/WINDOW · Campaign 12V079000 · Feb 29, 2012
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 · Campaign 06V395000 · Oct 13, 2006
Defect: CERTAIN VEHICLES FAIL TO COMPLY WITH THE STOP LAMP AND REFLEX REFLECTOR REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, 'LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: THIS STANDARD IS TO REDUCE CRASHES, INJURIES AND DEATHS BY PROVIDING ADEQUATE ILLUMINATION OF THE ROADWAY, AND BY ENHANCING THE CONSPICUITY OF MOTOR VEHICLES ON THE PUBLIC ROADS SO THAT THEIR PRESENCE IS PERCEIVED AND THEIR SIGNALS UNDERSTOOD, BOTH IN DAYLIGHT AND IN DARKNESS OR OTHER CONDITIONS OF REDUCED VISIBILITY.
Remedy: DEALERS WILL REPLACE THE REAR COMBINATION LAMP ASSEMBLIES FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT APRIL 16, 2007. OWNERS MAY CONTACT INFINITI AT 1-800-662-6200.
CHILD SEAT:LATCH STRAP · Campaign 05V374000 · Aug 29, 2005
Defect: CERTAIN PASSENGER VEHICLES EQUIPPED WITH POWER REAR SEATS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." THE LOWER ANCHORAGE BRACKETS IN THE REAR SEATS DO NOT MEET THE LOCATION REQUIREMENT IN THIS STANDARD. THIS MAY CAUSE DIFFICULTY IN ATTACHING SOME CHILD SEATS TO THESE BRACKETS.
Consequence: IF A CHILD SEAT IS NOT SECURED, THERE IS AN INCREASED RISK OF INJURY IN A CRASH.
Remedy: DEALERS WILL REPLACE THE LOWER ANCHORAGE BRACKETS WITH MODIFIED ONES TO ENSURE THAT THE STANDARD IS MET. THE RECALL BEGAN ON OCTOBER 17, 2005. OWNERS MAY CONTACT INFINITI AT 1-800-662-6200.