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#BS-2004-INFQ45-3F81

2004 Infiniti Q45

Based on reports from 14 owners and 2 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

🟢

Preliminary Verdict

Proceed with Caution

Based on 14 complaints, 0 crashes, 0 fires, and 2 recalls. This is the worst model year for this vehicle.

See full verdict with buy/skip conditions

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the ElectricalHIGH

3 owners reported electrical issues — failures commonly reported around 42K miles.

!Inspect the Vehicle Speed Control:cruise ControlMED

Look for symptoms of wear and premature failure

+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

0–30K

30–60K

60–90K

90–120K

120–150K

150K+

Peak failure range: 30–60K miles (6 reports) • Median: 42K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Electrical (3 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Electrical3 (21%)

Vehicle Speed Control:cruise Control2 (14%)

Engine2 (14%)

Steering2 (14%)

Lights2 (14%)

Structure:body1 (7%)

Brakes1 (7%)

Seats1 (7%)

2004 Infiniti Q45: Known Issues & Problem Areas

Electrical Issues

Electrical complaints account for 21% of all reports filed for the 2004 Infiniti Q45, with 3 owners filing complaints with NHTSA. The median mileage at time of complaint is 42,173 miles, suggesting issues tend to surface around the 42K-mile mark.

Vehicle Speed Control:cruise Control Issues

Vehicle Speed Control:cruise Control complaints account for 14% of all reports filed for the 2004 Infiniti Q45, with 2 owners filing complaints with NHTSA. Owners should pay attention to vehicle speed control:cruise control-related symptoms during test drives and pre-purchase inspections.

Engine Issues

Engine complaints account for 14% of all reports filed for the 2004 Infiniti Q45, with 2 owners filing complaints with NHTSA. Owners should pay attention to engine-related symptoms during test drives and pre-purchase inspections.

Steering Issues

Steering complaints account for 14% of all reports filed for the 2004 Infiniti Q45, with 2 owners filing complaints with NHTSA. Owners should pay attention to steering-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

Complaints filed with NHTSA by year for the 2004 Infiniti Q45. Recent trend: increasing.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (2 recalls)

04V497000Oct 2004

EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH

ON CERTAIN PASSENGER VEHICLES, THE BRAKE LAMP SWITCH MAY MALFUNCTION.

12V079000Mar 2012

AIR BAGS:SIDE/WINDOW

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.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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This is the worst model year for the Infiniti Q45 according to owner complaint data. The biggest problem area is transmission.

2004 Infiniti Q45 vs. Class Average (Midsize Cars)

This vehicle

Class avg

266

Below the class average — fewer complaints than typical midsize cars vehicles. A good sign.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 14 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 2 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Infiniti Q45 Model Years

2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987

View all Infiniti Q45 years →

2004 Infiniti Q45: Frequently Asked Questions

What is the most common problem with the 2004 Infiniti Q45?

The most commonly reported issue with the 2004 Infiniti Q45 is related to the electrical, with 3 complaints filed with NHTSA.

Is the 2004 Infiniti Q45 reliable?

The 2004 Infiniti Q45 has 14 complaints, 0 crash reports, and 0 fire reports filed with NHTSA. This is below the class average — a positive sign for reliability.

How much does it cost to fix 2004 Infiniti Q45 problems?

Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.

Does the 2004 Infiniti Q45 have any recalls?

Yes, the 2004 Infiniti Q45 has 2 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Infiniti Q45 problems start?

Based on 11 complaints with mileage data, the median mileage at time of complaint is 42,173 miles. The highest concentration of reported issues occurs in the 30–60K mile range. The full report breaks down exactly which components fail at each mileage bracket.

What’s in the full report?

10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.

How is this different from free NHTSA data?

NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.

How is this different from Carfax?

Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.

What if the report isn’t useful?

100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.