Model year guide

1999 Infiniti Q45

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 1999 Infiniti Q45 is worth — from official NHTSA and EPA data. 7 on record.

1999 Infiniti Q45 at a glance

Safety recallsNone
Owner complaints9
Combined18 mpg
Typical price$1,020

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

1999 Infiniti Q45 recalls 0

No NHTSA safety-recall campaigns are on record for the 1999 Infiniti Q45.

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.

1999 Infiniti Q45 common problems

The most-reported problem areas across all 9 owner complaints filed with NHTSA — and what to check before you buy.

Tires
Check tread depth, the DOT age date, and that all four tires match with even wear. Look for bulges or cracks.
Structure
Inspect for rust, fresh undercoating, mismatched paint, uneven panel gaps and any sign of prior collision or frame repair.
Wheels
Inspect wheels for bends, cracks and curb rash, and feel for vibration at highway speed.
Steering
Steering should be tight and centered — no play, clunks or wandering. Test at low and highway speed; listen for power-steering whine.
Suspension
Listen for clunks over bumps, check the car sits level, and look for uneven tire wear and worn shocks or struts.
Vehicle Speed Control
Test cruise control and throttle response, and watch for any hesitation or unintended acceleration.

1999 Infiniti Q45 MPG & running costs

Combined18 mpg
City16 mpg
Highway22 mpg
Est. annual fuel cost$4,550
EPA size classMidsize Cars
TransmissionAutomatic 4-spd
Passenger volume97 cu ft
Cargo volume13 cu ft
5-yr fuel cost vs average new car$10,750 more

Source: U.S. EPA / DOE fueleconomy.gov.

What's a 1999 Infiniti Q45 worth?

Low
$500
Typical price
$1,020
High
$1,550

From 5 comparable 1999 Infiniti Q45 listings.

Estimated 5-year cost to own

A rough guide to what running a 1999 Infiniti Q45 costs over five years and 75,000 miles.

Fuel (5 yrs)$22,750
Fuel only$22,750
Per mile$0.30

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Dimensions & weight

Length
199.2 in
Width
71.7 in
Height
57.1 in
Wheelbase
111.4 in
Curb weight
3,891 lb
Front track
60.6 in
Rear track
60.6 in

Manufacturer-reported figures for the 1999 Infiniti Q45. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

Manufacturer service bulletins 66

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 66.

REMOVING 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 2023

WINDSHIELD 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 2023

WHEEL 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 2023

INFINITI; 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 2021

EXTERIOR CLEANING INFORMATION SERVICE INFORMATION When cleaning the exterior of an Infiniti vehicle, damage may occur when using a cleaner with too high of an alkaline concentration. - Always refer to the Appearance and care section of the related owner?s manu…

Bulletin ITB19-008 · Equipment · Apr 2019

PLASTIC INTERIOR TRIM PROTECTIVE COVERING REMOVAL SERVICE INFORMATION Vehicles are delivered with plastic interior trim protective covering on the front and rear seats, front and rear door panel finishers, steering wheel, and sun visors (see examples on page 2…

Bulletin ITB18-037 · Structure, Equipment · Oct 2018

TRANSMISSION & ENGINE AUTOMATED DATA COLLECTION AND DIAGNOSTIC REPORTING SERVICE INFORMATION To support proper diagnosis and to promote Fixed-Right-First-Time ? Infiniti may review CONSULT-III plus (CIII plus) data relating to vehicle operation and function to…

Bulletin ITB18-034 · Power Train · Oct 2018

Infiniti USA Electronic Field Communication Subject: Retailed Vehicle Open Campaign Report Lists Updated The lists for each retailer?s Retailed Vehicle Open Campaign Report has been updated today in DBS. We made our best effort to reassign vehicles to retailer…

Bulletin Infiniti USA Ret · Equipment · Oct 2018

Infiniti USA Electronic Field Communication Subject: Takata Completion Objectives for Q3 INFINITI is continuing to ask its retailers to urgently help increase customer participation in the Takata recalls to help it achieve 100% customer recall participation fo…

Bulletin Infiniti USA Tak · Air Bags · Oct 2018

DBS Enhancement: Retailed Vehicle Open Campaign Report INFINITI announced the availability of a new DBS enhancement tool to the Service > Campaign screen: Retailed Vehicle Open Campaign Report on July 9, 2018, which identifies owner contact information for spe…

Bulletin IPSB18-218 Retai · Equipment · Sep 2018

Source: NHTSA Office of Defects Investigation, listed for the Q45. Model-year data, not specific to one car.

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.

1999 Infiniti Q45 trims & engines on record

Trims
Base
Engines
4.1L 8-cyl

1999 Infiniti Q45 vehicles on record

1999 Infiniti Q45 BaseJNKBY31AXXM606563 1999 Infiniti Q45 BaseJNKBY31A9XM603072 1999 Infiniti Q45 BaseJNKBY31A4XM602170 1999 Infiniti Q45 BaseJNKBY31A6XM604633 1999 Infiniti Q45 BaseJNKBY31A8XM601684 1999 Infiniti Q45 BaseJNKBY31A8XM604973 1999 Infiniti Q45JN1BBAY33Z0100002

Other Infiniti Q45 model years

2005 2004 2003 2002 2001 2000 1998 1997 1995 1994

1999 Infiniti Q45 — frequently asked questions

Does the 1999 Infiniti Q45 have any safety recalls?

NHTSA lists no safety-recall campaigns for the 1999 Infiniti Q45. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 1999 Infiniti Q45?

Across all 9 owner complaints filed with NHTSA, the most-reported problem areas are tires, structure, wheels.

What gas mileage does the 1999 Infiniti Q45 get?

The 1999 Infiniti Q45 has a U.S. EPA estimate of 18 mpg combined (16 city / 22 highway).

How much is a 1999 Infiniti Q45 worth?

Comparable 1999 Infiniti Q45 listings run roughly $500–$1,550, typically around $1,020 (from 5 vehicles).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.