The Infiniti Q45 spans 1990–2007 with 25 recorded NHTSA recalls and a 3.5/5 ForCar reliability score. The years to approach with caution are 1991, 1994, 1990 (most owner complaints); the cleanest are 2006, 2007, 1993. It delivers up to 18 mpg combined and NHTSA-rated safety.
How we score: NHTSA crash-test safety (40%), recall frequency across all years (25%) and the share of owner complaints involving a crash, fire or injury (35%). Based on NHTSA & EPA data — not user reviews.
Overview
The Infiniti Q45 is one of the most popular vehicles in its class, produced from 1990 to 2007 across multiple generations.
How to read a Infiniti Q45 VIN — every digit explained
Every Infiniti Q45 carries a unique 17-character VIN stamped at the factory. Each position is a code — together they spell out where, when and how your car was built. Here's exactly what every digit means.
- WMI (1–3) — country & manufacturer. Tells you it's a Infiniti and the country it was built in.
- VDS (4–8) — model, body style, engine, trim & restraints. The 8th digit is the engine code.
- Check digit (9) — a math check that proves the VIN is genuine.
- Model year (10) — the year it was built (e.g. R = 2024, S = 2025).
- Plant (11) — which factory assembled this Q45.
- Serial (12–17) — the unique sequential production number.
Digits 4–17 — the engine code (8th), model-year letter (10th) and plant — follow the universal SAE standard, identical on every car. For the full year-code table (2001–2026), country codes and where the VIN is stamped on your Q45, see the complete guide to reading a VIN.
How many recalls does the Infiniti Q45 have?
The Infiniti Q45 has 25 recorded NHTSA recalls across 1990–2007. Pick a year below to see its recalls — then verify open recalls against your specific VIN.
2006 Infiniti Q45 recalls 1
Exterior Lighting:brake Lights
What's wrong. 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."
Risk. 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.
Fix. 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.
2005 Infiniti Q45 recalls 3
Child Seat:latch Strap
What's wrong. 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.
Risk. IF A CHILD SEAT IS NOT SECURED, THERE IS AN INCREASED RISK OF INJURY IN A CRASH.
Fix. 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.
Exterior Lighting:brake Lights
What's wrong. 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."
Risk. 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.
Fix. 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.
Air Bags:side/window
What's wrong. 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.
Risk. NON-DEPLOYMENT OF SIDE AIR BAGS COULD INCREASE THE RISK OF PERSONAL INJURY.
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.
2004 Infiniti Q45 recalls 2
Exterior Lighting:brake Lights:switch
What's wrong. ON CERTAIN PASSENGER VEHICLES, THE BRAKE LAMP SWITCH MAY MALFUNCTION.
Risk. IF THIS OCCURS, THE BRAKE LIGHTS WILL NOT ILLUMINATE WHEN THE BRAKE IS APPLIED, WHICH COULD RESULT IN A CRASH.
Fix. DEALERS WILL REPLACE THE BRAKE LAMP SWITCH. THE RECALL BEGAN ON OCTOBER 25, 2004. OWNERS SHOULD CONTACT INFINITI AT 1-800-662-6200.
Air Bags:side/window
What's wrong. 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.
Risk. NON-DEPLOYMENT OF SIDE AIR BAGS COULD INCREASE THE RISK OF PERSONAL INJURY.
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.
2003 Infiniti Q45 recalls 1
Air Bags:side/window
What's wrong. 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.
Risk. NON-DEPLOYMENT OF SIDE AIR BAGS COULD INCREASE THE RISK OF PERSONAL INJURY.
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.
2002 Infiniti Q45 recalls 1
Engine And Engine Cooling
What's wrong. ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER DEFORMATION CAUSED BY HEAT STRESS ACCELERATED BY THE EXISTENCE OF FLUX RESIDUE DURING THE SOLDERING PROCESS.
Risk. THIS COULD CAUSE THE "SERVICE ENGINE SOON" WARNING LIGHT TO COME ON, CREATE A NO START CONDITION, CAUSE REDUCED ENGINE POWER, OR CAUSE THE ENGINE TO STOP RUNNING WITHOUT WARNING DURING VEHICLE OPERATION, WHICH COULD RESULT IN A CRASH.
Fix. DEALERS WILL REPLACE THE CRANK POSITION SENSORS. CAMSHAFT POSITION SENSOR(S), AND IN SOME CASES, THE VARIABLE TIMING CONTROL SENSOR(S). VEHICLES INVOLVED IN A PREVIOUS RECALL CAMPAIGN, 01V357, ARE ALSO INCLUDED IN THIS NEW CAMPAIGN. THE REPLACEMENT SENSORS USED IN THAT CAMPAIGN ARE ALSO AFFECTED. OWNER NOTIFICATION BEGAN ON DECEMBER 22, 2003. OWNERS SHOULD CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.
2001 Infiniti Q45 recalls 1
Wheels
What's wrong. ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 17 INCH ALLOY WHEELS, THE WHEELS MAY HAVE A CASTING DEFECT FROM WHICH CRACKS COULD PROPAGATE AS THE VEHICLE IS BEING DRIVEN.
Risk. IF A SUFFICIENT NUMBER OF CRACKS DEVELOP, THE WHEEL COULD FAIL AND SEPARATE FROM THE MOUNTING HUB, INCREASING THE RISK OF A CRASH.
Fix. DEALERS WILL REPLACE THESE WHEELS. OWNER NOTIFICATION BEGAN APRIL 28, 2003. 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 INFINITI AT 1-800-662-6200.
2000 Infiniti Q45 recalls 1
Wheels
What's wrong. ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 17 INCH ALLOY WHEELS, THE WHEELS MAY HAVE A CASTING DEFECT FROM WHICH CRACKS COULD PROPAGATE AS THE VEHICLE IS BEING DRIVEN.
Risk. IF A SUFFICIENT NUMBER OF CRACKS DEVELOP, THE WHEEL COULD FAIL AND SEPARATE FROM THE MOUNTING HUB, INCREASING THE RISK OF A CRASH.
Fix. DEALERS WILL REPLACE THESE WHEELS. OWNER NOTIFICATION BEGAN APRIL 28, 2003. 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 INFINITI AT 1-800-662-6200.
1998 Infiniti Q45 recalls 3
Power Train:automatic Transmission
What's wrong. 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."
Risk. 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.
Fix. DEALERS WILL REPLACE THE SHIFT LOCK CONTROL UNIT.
Electrical System:alternator/generator/regulator
What's wrong. 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.
Risk. 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.
Fix. DEALERS WILL REPLACE THE ALTERNATOR.
Electrical System:alternator/generator/regulator
What's wrong. 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.
Risk. 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.
Fix. 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.
1997 Infiniti Q45 recalls 3
Power Train:automatic Transmission
What's wrong. 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."
Risk. 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.
Fix. DEALERS WILL REPLACE THE SHIFT LOCK CONTROL UNIT.
Electrical System:alternator/generator/regulator
What's wrong. 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.
Risk. 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.
Fix. DEALERS WILL REPLACE THE ALTERNATOR.
Electrical System:alternator/generator/regulator
What's wrong. 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.
Risk. 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.
Fix. 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.
1992 Infiniti Q45 recalls 1
Equipment:electrical:radio/tape Deck/cd Etc.
What's wrong. VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH BOSE REAR SPEAKERS THAT HAVE AN INTEGRAL AMPLIFIER. A CONDUCTIVE BRIDGE CAN FORM BETWEEN TWO LINES OF THE CIRCUIT BOARD PATTERN WHEN THERE IS ACCUMULATED ELECTROLYTE LEAKED FROMA CAPACITOR AND HIGH HUMIDITY CONDITIONS. THIS CAN CLOSE A TRANSISTOR ON THE CIRCUIT BOARD WHICH CAUSES OVERHEATING.
Risk. THIS CONDITION COULD RESULT IN SMOKE OR FLAME AND POSSIBLY THE SPEAKER CATCHING FIRE.
Fix. DEALERS WILL REPLACE THE CIRCUIT BOARD WITH A NEW BOARD THAT HAS BEEN COATED.
1991 Infiniti Q45 recalls 2
Seat Belts:front:buckle Assembly
What's wrong. THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY.
Risk. THE SAFETY BELTS WOULD NOT PROVIDE ADEQUATE PROTECTION TO AN OCCUPANT IN A VEHICLE CRASH.
Fix. OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD ENSURE THAT BOTH BUCKLES ARE OPERATING PROPERLY BY INSERTING EACH LATCH PLATE INTO ITS BUCKLE, TUGGING ON THE BELT TO MAKE SURE THE LATCH IS SECURELY LOCKED, AND THEN PRESSING THE RELEASE BUTTON. THE LATCH PLATE SHOULD POP OUT OF THE BUCKLE WHEN THE BUTTON IS PRESSED. IF EITHER RELEASE BUTTON SHOWS A SIGN OF BREAKING OR CRACKING OR IF EITHER BUCKLE FAILS TO OPERATE PROPERLY, OWNERS SHOULD PROMPTLY CONTACT THEIR AUTHORIZED DEALER TO SCHEDULE AN APPOINTMENT TO HAVE THE BUCKLE REPLACED OR REPAIRED FREE OF CHARGE.
Equipment:electrical:radio/tape Deck/cd Etc.
What's wrong. VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH BOSE REAR SPEAKERS THAT HAVE AN INTEGRAL AMPLIFIER. A CONDUCTIVE BRIDGE CAN FORM BETWEEN TWO LINES OF THE CIRCUIT BOARD PATTERN WHEN THERE IS ACCUMULATED ELECTROLYTE LEAKED FROMA CAPACITOR AND HIGH HUMIDITY CONDITIONS. THIS CAN CLOSE A TRANSISTOR ON THE CIRCUIT BOARD WHICH CAUSES OVERHEATING.
Risk. THIS CONDITION COULD RESULT IN SMOKE OR FLAME AND POSSIBLY THE SPEAKER CATCHING FIRE.
Fix. DEALERS WILL REPLACE THE CIRCUIT BOARD WITH A NEW BOARD THAT HAS BEEN COATED.
1990 Infiniti Q45 recalls 1
Seat Belts:front:buckle Assembly
What's wrong. THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY.
Risk. THE SAFETY BELTS WOULD NOT PROVIDE ADEQUATE PROTECTION TO AN OCCUPANT IN A VEHICLE CRASH.
Fix. OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD ENSURE THAT BOTH BUCKLES ARE OPERATING PROPERLY BY INSERTING EACH LATCH PLATE INTO ITS BUCKLE, TUGGING ON THE BELT TO MAKE SURE THE LATCH IS SECURELY LOCKED, AND THEN PRESSING THE RELEASE BUTTON. THE LATCH PLATE SHOULD POP OUT OF THE BUCKLE WHEN THE BUTTON IS PRESSED. IF EITHER RELEASE BUTTON SHOWS A SIGN OF BREAKING OR CRACKING OR IF EITHER BUCKLE FAILS TO OPERATE PROPERLY, OWNERS SHOULD PROMPTLY CONTACT THEIR AUTHORIZED DEALER TO SCHEDULE AN APPOINTMENT TO HAVE THE BUCKLE REPLACED OR REPAIRED FREE OF CHARGE.
Best and worst years for the Infiniti Q45
Based on NHTSA owner-complaint volume across 18 tracked years, the worst years are 1991, 1994, 1990 and the best (fewest complaints) are 2006, 2007, 1993.
ForCar aggregate — our own analysis of complaint volume, not published by NHTSA.
| Year | Owner complaints | Top issue | Verdict |
|---|---|---|---|
| 1990 Q45 | Power Train | Avoid | |
| 1991 Q45 | Service Brakes | Avoid | |
| 1992 Q45 | Power Train | Average | |
| 1993 Q45 | Fuel System | Best | |
| 1994 Q45 | Air Bags | Avoid | |
| 1995 Q45 | Vehicle Speed Control | Average | |
| 1996 Q45 | Suspension | Average | |
| 1997 Q45 | Electrical System | Average | |
| 1998 Q45 | Air Bags | Average | |
| 1999 Q45 | Tires | Average | |
| 2000 Q45 | Suspension | Average | |
| 2001 Q45 | Electrical System | Average | |
| 2002 Q45 | Engine And Engine Cooling | Average | |
| 2003 Q45 | Engine | Average | |
| 2004 Q45 | Electrical System | Average | |
| 2005 Q45 | Vehicle Speed Control | Average | |
| 2006 Q45 | — | Best | |
| 2007 Q45 | — | Best |
What are the most common Infiniti Q45 problems?
The most-reported Infiniti Q45 problems are Seats (7 reports), Tires (13 reports) and Engine (8 reports) — out of 259 owner complaints NHTSA holds for the model. Here's how they break down:
Most-reported components — tap a category to read what owners actually experienced:
Source: NHTSA owner complaints, all model years. Bar = share of total complaints. Full reports searchable on NHTSA.gov.
Infiniti Q45 specifications & dimensions
The 2004 Infiniti Q45 measures 200″ long on a 113″ wheelbase, with a curb weight near 3,977 lb. Full dimensions below — engine, horsepower and trim decode from your VIN. For the original factory build — MSRP, trim and standard equipment — rebuild the Infiniti Q45 window sticker.
| Years | Length | Width | Height | Wheelbase | Curb weight |
|---|---|---|---|---|---|
| 2004 | 200″ | 72″ | 59″ | 113″ | 3,977 lb |
| 2001 | 200″ | 72″ | 57″ | 111″ | 4,043 lb |
| 1998 | 199″ | 72″ | 57″ | 111″ | 3,882 lb |
| 1990–1995 | 200″ | 72″ | 56″ | 113″ | — |
Source: NHTSA vPIC / Transport Canada vehicle specifications. Metric values converted to imperial; generation ranges approximate.
Infiniti Q45 cargo space, seating & interior room
How much the Q45 holds — passengers and cargo. EPA measures its interior at 107 cu ft of passenger volume and 15 cu ft of cargo. Seating capacity and legroom vary by trim.
Exact seating capacity, third-row availability, legroom and headroom decode from your VIN or vary by trim — the original factory equipment & options list shows what each trim included.
Passenger & cargo volume from EPA fueleconomy.gov (largest configuration). Seats, legroom and headroom from NHTSA vPIC on VIN decode.
Infiniti Q45 tire size, oil type & owner specs
The fitment owners look up most — tires, wheels, oil and batteries. Exact wheel and tire sizes decode from your VIN or the driver's door-jamb placard; the universal items are listed below.
Exact tire, wheel, oil grade, capacity and battery group are added per trim and model year — decode your VIN above for the factory fitment. Universal items shown as-is.
What MPG does the Infiniti Q45 get?
The Infiniti Q45 returns up to 18 combined MPG (EPA), which works out to roughly $4,300/yr in fuel. Pick an engine to see MPG, annual running cost and CO₂ by year:
The 2007 Infiniti Q45 (3.5L 6-cyl) gets 17 mpg combined and costs about $4,550/yr to fuel, emitting 523 g/mi CO₂ (smog 5/10) — about $11,750 more than the average new vehicle over 5 years.
| Year | City | Hwy | Comb | Fuel/yr | CO₂ g/mi | Smog | Engine |
|---|---|---|---|---|---|---|---|
| 2007 Q45 | 15 | 20 | $4,550 | 523 | 5/10 | 3.5L 6-cyl |
The 2006 Infiniti Q45 (4.5L 8-cyl) gets 18 mpg combined and costs about $4,300/yr to fuel, emitting 494 g/mi CO₂ (smog 5/10) — about $10,500 more than the average new vehicle over 5 years.
| Year | City | Hwy | Comb | Fuel/yr | CO₂ g/mi | Smog | Engine |
|---|---|---|---|---|---|---|---|
| 2006 Q45 | 16 | 22 | $4,300 | 494 | 5/10 | 4.5L 8-cyl | |
| 2005 Q45 | 16 | 22 | $4,300 | 494 | 1/10 | 4.5L 8-cyl | |
| 2004 Q45 | 16 | 22 | $4,300 | 494 | 1/10 | 4.5L 8-cyl | |
| 2003 Q45 | 16 | 22 | $4,300 | 494 | — | 4.5L 8-cyl | |
| 2002 Q45 | 16 | 23 | $4,300 | 494 | — | 4.5L 8-cyl | |
| 2001 Q45 | 16 | 21 | $4,300 | 494 | — | 4.1L 8-cyl | |
| 2000 Q45 | 16 | 21 | $4,300 | 494 | — | 4.1L 8-cyl | |
| 1999 Q45 | 16 | 22 | $4,300 | 494 | — | 4.1L 8-cyl | |
| 1998 Q45 | 16 | 22 | $4,300 | 494 | — | 4.1L 8-cyl | |
| 1997 Q45 | 16 | 22 | $4,300 | 494 | — | 4.1L 8-cyl | |
| 1996 Q45 | 15 | 20 | $4,550 | 523 | — | 4.5L 8-cyl | |
| 1995 Q45 | 15 | 20 | $4,550 | 523 | — | 4.5L 8-cyl | |
| 1994 Q45 | 15 | 20 | $4,550 | 523 | — | 4.5L 8-cyl | |
| 1993 Q45 | 15 | 20 | $4,550 | 523 | — | 4.5L 8-cyl | |
| 1992 Q45 | 15 | 20 | $4,550 | 523 | — | 4.5L 8-cyl | |
| 1991 Q45 | 15 | 20 | $4,550 | 523 | — | 4.5L 8-cyl | |
| 1990 Q45 | 15 | 20 | $4,550 | 523 | — | 4.5L 8-cyl |
Source: EPA fuel-economy database (ForCar-hosted, 1986–2027) — best combined rating per engine & year, with EPA annual fuel cost and tailpipe CO₂. Trim & drivetrain vary slightly; decode your VIN for the exact figure.
See how the Q45 stacks up against the most fuel-efficient sedans, or calculate this Q45's real yearly fuel cost.
What engines does the Infiniti Q45 have? Power & range
The Infiniti Q45 is offered with 2 powertrains — 3.5L 6-cyl, 4.5L 8-cyl. Here's the lineup by engine, transmission and drivetrain.
| Engine | Displacement | Transmission | Drive | Fuel |
|---|---|---|---|---|
| V6 | 3.5L · 6-cyl | Automatic (S5) | 4-Wheel or All-Wheel Drive | Premium |
| V8 | 4.5L · 8-cyl | Automatic (S5) | RWD | Premium |
Horsepower, torque and fuel-tank size decode from your VIN — exact figures vary by engine and trim.
Source: EPA fueleconomy.gov (engines, drivetrain, range, charge time). Horsepower & torque from NHTSA vPIC on VIN decode.
How much does a Infiniti Q45 cost to own?
A Infiniti Q45 tends to depreciate faster than average. A typical example keeps roughly 37% of its value after five years — losing about 63% to depreciation. Fuel, maintenance and insurance add to the total cost to own.
| Age | Value retained | Est. resale value | Lost to depreciation |
|---|---|---|---|
| Year 1 | 75% | $22,500 | −$7,500 |
| Year 2 | 63% | $18,900 | −$11,100 |
| Year 3 | 53% | $15,900 | −$14,100 |
| Year 4 | 44% | $13,200 | −$16,800 |
| Year 5 | 37% | $11,100 | −$18,900 |
What goes into the five-year cost to own:
- Depreciation — the biggest cost: this Q45 loses about 63% of its value over five years. See the full depreciation curve by age.
- Fuel — ≈ $21,500 over five years at roughly 15,000 miles a year.
- Maintenance & repairs — routine service, tires and wear items as the Q45 ages.
- Insurance — varies by driver, state and trim; get a quote for your exact figure.
Resale & depreciation are ForCar estimates from typical segment value-retention curves — not a live market quote. Fuel from EPA fueleconomy.gov at ~15k mi/yr.
How much is a Infiniti Q45 to insure?
A Infiniti Q45 costs about $2,387 a year to insure for a typical driver on full coverage — roughly 66% above the average car. That's from its real HLDI insurance-loss index (166, where 100 = average car); your own rate moves with state, age, record and coverage.
Estimate = US-average premium × the Q45's HLDI loss index. See Infiniti insurance cost by model, cost by state, or compare any car.
Is the Infiniti Q45 safe?
NHTSA crash-test ratings aren't published for the Q45 yet — see the top-rated safest cars instead.
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How many miles does a Infiniti Q45 last?
A well-maintained Infiniti Q45 typically lasts 200,000–250,000 miles. With regular oil, transmission and timing service, most examples comfortably pass the 200,000-mile mark. Its ForCar Reliability Score is 3.5/5.
Check your Infiniti Q45’s VIN — history, recalls & specs
Title records, open recalls, build details and paint code — straight from the VIN. Free.
Check this Q45’s VIN free →All Infiniti Q45 model years
A year-by-year snapshot of the Infiniti Q45 — recalls, best EPA fuel economy and NHTSA safety. Tap a year for full details.
| Year | Recalls | Best MPG | Safety |
|---|---|---|---|
| 2007 Q45 | 0 | — | |
| 2006 Q45 | 1 recall | — | |
| 2005 Q45 | 3 recalls | — | |
| 2004 Q45 | 2 recalls | — | |
| 2003 Q45 | 1 recall | — | |
| 2002 Q45 | 1 recall | — | |
| 2001 Q45 | 1 recall | — | |
| 2000 Q45 | 1 recall | — | |
| 1999 Q45 | 1 recall | — | |
| 1998 Q45 | 3 recalls | — | |
| 1997 Q45 | 3 recalls | — | |
| 1996 Q45 | 1 recall | — | |
| 1995 Q45 | 1 recall | — | |
| 1994 Q45 | 1 recall | — | |
| 1993 Q45 | 1 recall | — | |
| 1992 Q45 | 1 recall | — | |
| 1991 Q45 | 2 recalls | — | |
| 1990 Q45 | 1 recall | — |
Recalls = NHTSA campaigns that year · MPG = best EPA combined · Safety = NHTSA overall stars (tested years).
Frequently asked questions
What are the worst years for the Q45?
By owner-complaint volume, 1991, 1994, 1990 drew the most reports. 2006, 2007, 1993 have the cleanest records.
How many recalls does the Q45 have?
25 recorded NHTSA recalls across 1990–2007. Always check open recalls by your VIN. See all Infiniti recalls and reliability across every model.
What MPG does the Q45 get?
Up to 18 combined MPG (EPA), depending on engine — from the base 4-cylinder to the hybrid.
How many miles does a Q45 last?
A well-maintained Q45 typically reaches 200,000–300,000 miles with regular maintenance.
Is the Q45 reliable?
Our ForCar Reliability Score for the Q45 is 3.5/5, based on NHTSA safety, recall history and complaint severity.
What's the Infiniti Q45 warranty?
New Infiniti models carry a 4 years / 50,000 miles basic (bumper-to-bumper) warranty and a 6 years / 70,000 miles powertrain warranty. Coverage can vary by model year and market — confirm with a Infiniti dealer.
Where is the Infiniti Q45 made?
The assembly plant is encoded in the VIN — the 11th character. Decode your Q45's VIN above to see exactly where it was built; Infiniti may build it at more than one plant depending on the year.
How much ground clearance does the Q45 have?
Ground clearance varies by trim and drivetrain — AWD/4WD versions often sit higher. Decode your VIN or check the specific trim for the exact figure.