1998 Infiniti Q45
The Verdict
Worst problem area
Airbags & Restraints
Airbags & Restraints leads by volume: 7 of 14 complaints (50%) mention it.
Complaints filed rose from 12 in 1997 to 14 in 1998.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 1996 | 1997 | 1998 | 1999 | 2000 | vs. 1998 Midsize Cars |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 4,550 | 4,300 | 4,300 | 4,300 | 4,300 | |
| Combined MPG | 17 | 18 | 18 | 18 | 18 | |
| City / Highway MPG | 15 / 20 | 16 / 22 | 16 / 22 | 16 / 22 | 16 / 21 | |
| CO₂ tailpipe (g/mi) | 523 | 494 | 494 | 494 | 494 | |
| Complaints filed | 7 | 12 | 14 | 9 | 9 | |
| Recalls issued | 0 | 3 | 3 | 0 | 1 | |
| Crash-involved complaints | 0 | 0 | 4 | 2 | 0 | |
| Fire-involved complaints | 0 | 0 | 1 | 0 | 0 | |
| Injuries reported | 0 | 0 | 8 | 1 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 1 | 1 | 1 | 1 | 1 |
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 1998 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 is the most common complaint about the 1998 Infiniti Q45?
Airbags & Restraints: 7 of 14 NHTSA complaints (50%) mention it.
What gas mileage does the 1998 Infiniti Q45 get?
EPA rates it 18 MPG combined.
How much does it cost to fuel a 1998 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 4-spd | 8 | 4.1L | 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 | 1 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 0 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 2 | 0 | 1 | 0 | 0 |
| Brakes | 1 | 0 | 0 | 0 | 0 |
| Steering | 1 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 1 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 7 | 4 | 0 | 8 | 0 |
| Driver Assistance & Speed Control | 1 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 0 | 0 | 0 | 0 | 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)
ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR · Campaign 02V171000 · Jun 26, 2002
Defect: ON CERTAIN PASSENGER VEHICLES, ONE OF THE DIODES USED IN THE ALTERNATOR MAY HAVE BEEN DAMAGED WHEN BUILT. THIS CAN EVENTUALLY RESULT IN FAILURE OF THE DIODE AND AN ELECTRICAL SHORT WHICH COULD MELT THE PLASTIC HOUSING.
Consequence: IF THE COMBUSTIBLE GAS EMITTED BY THE MELTING PLASTIC DOES NOT DISPERSE DUE TO AIR FLOW THROUGH THE ENGINE COMPARTMENT, IT COULD IGNITE AND IN TURN IGNITE THE FAN GUIDE IN THE ALTERNATOR.
Remedy: DEALERS WILL REPLACE THE ALTERNATOR. OWNER NOTIFICATION BEGAN JULY 29, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.
ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR · Campaign 99V129000 · May 27, 1999
Defect: VEHICLE DESCRIPTION: PASSENGER VEHICLES. ONE OF THE DIODES USED IN THE ALTERNATOR MAY HAVE BEEN DAMAGED WHEN BUILT. THIS CAN EVENTUALLY RESULT IN FAILURE OF THE DIODE AND AN ELECTRICAL SHORT WHICH COULD MELT THE PLASTIC HOUSING.
Consequence: IF THE COMBUSTIBLE GAS EMITTED BY THE MELTING PLASTIC DOES NOT DISPERSE DUE TO AIR FLOW THROUGH THE ENGINE COMPARTMENT, IT COULD IGNITE AND IN TURN IGNITE THE FAN GUIDE IN THE ALTERNATOR.
Remedy: DEALERS WILL REPLACE THE ALTERNATOR.
POWER TRAIN:AUTOMATIC TRANSMISSION · Campaign 98V325000 · Dec 23, 1998
Defect: VEHICLE DESRIPTION: PASSENGER VEHICLES. THE IGNITION KEY CAN BE REMOVED WHEN THE ENGINE IS TURNED OFF WITHOUT PLACING THE TRANSMISSION SHIFT LEVER IN THE "PARK" POSITION. THIS DOES NOT COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 102, "TRANSMISSION SHIFT LEVER SEQUENCE, STARTER INTERLOCK, AND TRANSMISSION BRAKING EFFECT."
Consequence: IF THIS OCCURRED AND THE DRIVER FAILED TO MOVE THE SHIFT LEVER TO 'PARK' OR ENGAGE THE PARKING BRAKE, THE VEHICLE COULD ROLL AWAY IF PARKED ON A SLOPE.
Remedy: DEALERS WILL REPLACE THE SHIFT LOCK CONTROL UNIT.