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Infiniti Q45Model year report

2001 Infiniti Q45 Problems

Complaints
5filed with NHTSA
Median mileage
174,663miles, 2 complaints with mileage
Recalls
1campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
18 mpgcombined, 4.1L 8-cyl RWD · 16 city / 21 hwy

Sources: NHTSA records for the 2001 Infiniti Q45 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 5 consumer complaints for the 2001 Infiniti Q45. The part named most often is electrical system, with 2 complaints (40% of the total), followed by other or unknown (1) and seat belts (1). 2 of the complaints include a mileage, and 0% of those were filed for vehicles with under 50,000 miles; the median is 174,663 miles. Of all complaints, 1 involved a crash, according to the filers. NHTSA lists 1 recall campaign and 38 technical service bulletins for this model year. Electrical system complaints overlap with 7 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Electrical system: “Vehicle experiences a total electrical shutdown. First occasion was after a 6 hour drive and shut down in the parking lot. Vehicle was transported 100 miles to nearest infinity dealership, alternator checked out, recharged the battery and returned the vehicle. Second experience occurred 1 month later while driving the vehicle again experienced total shutdown, all lights on dash came on, engine shutdown. Vehicle towed to infinity dealership, replaced alternator and battery, as of this date continuing to search for cause.”

NHTSA complaint #10102680, filed 2004-12, 54,326 miles

Seat belts: “The contact owns a 1999 Infiniti Q45. While the vehicle was parked, the contact became aware that the driver's seat belt strap was shredding. The vehicle was taken to the dealer at the manufacturer's request. The contact was informed that the seat belt strap needed to be replaced and that the part was ordered. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact later received an email from the manufacturer stating that the parts were no longer manufactured. The contact was informed that there was no fix for the vehicle. …”

NHTSA complaint #11722201, filed 2026-03, 295,000 miles

Mileage when problems were reported

0% of the 2 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 54,326 and 295,000 miles.

0%0–100%10–250%25–5050%50–750%75–1000%100–15050%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (2 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 174,663 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

20032004220072026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2001 Infiniti Q45 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
Q45 RWD4.1L 8-cyl4-speed automatic162118$4,550

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2001 Infiniti Q45 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 38 on record; the latest 10 are shown.

See all 38 bulletins →

Other model years of the Infiniti Q45

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2004742,1732—18—Not enough data
200312100,0001—18—Not enough data
20022063,0001—18—Stable
20015174,6631—18—Not enough data
2000918,2331—18—Not enough data
19999114,0000—18—Not enough data
19981477,0003—18—Not enough data
199712125,0003—18—Not enough data
19967—0—17—Not enough data
19957—0—17—Not enough data
199430—0—17Not compared (before 2008)Stable
19922810,5001—17Not compared (before 2008)Stable
199134—2—17Not compared (before 2008)Stable
199028401—17Not compared (before 2008)Stable

All Infiniti Q45 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2001 Infiniti Q45 have?

NHTSA recorded 5 consumer complaints for the 2001 Infiniti Q45 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2001 Infiniti Q45 is reported most often?

Electrical system is named most often, in 2 complaints (40% of the total), followed by other or unknown with 1.

Has the 2001 Infiniti Q45 been recalled?

NHTSA lists 1 recall campaign for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2001 Infiniti Q45 get?

The EPA rates the 2001 Infiniti Q45 (Q45, 4.1L 8-cyl) at 18 mpg combined, 16 city and 21 highway, with an estimated annual fuel cost of $4,550 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2001 Infiniti Q45 reported?

Among the 2 complaints that include a mileage, the median is 174,663 miles and the middle half falls between 54,326 and 295,000 miles; 0% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.