Before you buy
This 2004 Infiniti Q45 has 7 NHTSA complaints — top issue: Electrical Faults.
A model-year pattern isn't the car in front of you. Check this exact VIN for accidents, open recalls, odometer rollback, and salvage titles.
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2004 Infiniti Q45 Fuel Economy
✓ EPA Official DataEPA official fuel economy rating for the 2004 Infiniti Q45.
Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions.
2004 Infiniti Q45 Safety Ratings
NHTSA 5-Star ProgramOfficial crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.
Overall
Not RatedFrontal Crash
Not RatedSide Crash
Not RatedRollover
Not RatedSource: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.
INFINITI Q45 (2004) has 7 NHTSA complaints and 2 recalls. Top issues include electrical faults (3 complaints), steering defects (2), and engine problems (2). No crash-related complaints were reported. Source: NHTSA owner complaints and recall records.
- Make
- Infiniti
- Model
- Q45
- Model year
- 2004
- NHTSA owner complaints
- 7
- Crash-related complaints
- 0
- Safety recall campaigns
- 2
- Top reported component
- Electrical Faults
- Reliability signal
- Good Record
- EPA MPG combined
- 18
- EPA MPG city / highway
- 16 / 22
- Fuel type
- Premium Gasoline
- Electronic stability control
- Standard
Common problems
Most common 2004 Infiniti Q45 problems
Top owner-reported complaint areas and where they often appear.
Electrical Faults
Steering Defects
Engine Problems
Complaint patterns center on Electrical Faults, Steering Defects, Engine Problems. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Buyer verdict
Should you buy a used 2004 Infiniti Q45?
The 2004 Q45 may be worth considering for a buyer willing to inspect electrical and steering systems, but the low complaint count limits reliability conclusions. Pre-purchase inspection is essential.
Electrical faults and steering defects can lead to costly repairs or safety concerns, making pre-purchase inspection critical.
May Suit
This year may suit a buyer who values a luxury sedan and is prepared for potential electrical or steering repairs.
May Want to Avoid
Buyers seeking a worry-free ownership experience or those unable to perform thorough inspections should avoid this year.
Pre-purchase
What to check before buying a used 2004 Infiniti Q45
Inspection Focus
- Inspect electrical system for faults (e.g., wiring, modules).
- Check steering components for defects (e.g., power steering, linkage).
- Verify engine performance and check for reported problems.
Before You Close the Deal
- Inspect electrical system for faults (e.g., wiring, modules).
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for steering and engine components.
- Have a mechanic inspect before purchase.
Check the exact car
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2004 Infiniti Q45, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
AI verdict
What the complaint data suggests
Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology
Based on NHTSA complaint data, the 2004 Infiniti Q45 has 7 total complaints and 2 recalls, with top issues in electrical faults (3), steering defects (2), and engine problems (2). No crash-related complaints were reported. Source: NHTSA owner complaints and recall records.
Year context: Only one model year (2004) was analyzed, so no comparison across years is available.
Recall context: With 2 recalls, buyers should verify all recall repairs are completed before purchase.
- Electrical faults account for 3 of 7 total complaints.
- Steering defects account for 2 of 7 total complaints.
- Engine problems account for 2 of 7 total complaints.
- Electrical Faults (3 complaints)
- Steering Defects (2 complaints)
- Engine Problems (2 complaints)
Full breakdown
All 2004 Infiniti Q45 complaints by category
Every owner-reported complaint category filed with NHTSA for the 2004 Infiniti Q45. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Electrical Faults | 3 | — | — | — | |
| Steering Defects | 2 | — | — | — | |
| Engine Problems | 2 | — | — | — | |
| Headlight/Taillight Failures | 2 | — | — | — | |
| Unintended Acceleration | 2 | — | — | — | |
| Structural Problems | 1 | — | — | — | |
| Brake System | 1 | — | — | — | |
| Hydraulic | 1 | — | — | — | |
| Seat-Related Issues | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
In their words
Real owner complaints
Read what owners actually reported to NHTSA for the 2004 Infiniti Q45. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
TL* THE CONTACT OWNS A 2004 INFINITI Q45. THE CONTACT STATED THAT THE VEHICLE'S FRAME WAS CORRODED. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 11V244000 (STEERING, SUSPENSION). THE MANUFACTURER STATED THAT THEY WOULD NOT PAY FOR THE REPAIR. THE DEALER WAS NOT CONTACTED. T…
TL* THE CONTACT OWNS A 2004 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE ENGINE STALLED WHILE THE SERVICE ENGINE SOON WARNING LIGHT AND ANOTHER UNKNOWN LIGHT ILLUMINATED. THE VEHICLE WAS ABLE TO RESTART. THE CONTACT STATED THAT THE VEHICLE FAILED TO ACCELERA…
I WAS DRIVING AND DASHBOARD LIGHTS CAME ON, THEN VEHICLE CUT OFF ON THE HIGHWAY. I ASSUMED IT WAS A BAD ALTERNATOR, BUT IT WAS A DEFECTIVE CRANK SENSOR. *TR
MY LOW BEAM HEADLAMP SYSTEM HAS NOW FAILED AT TWO SEPARATE TIMES, BOTH DURING NIGHTTIME DRIVING. THE FIRST WAS ON NOVEMBER 2, 2009, AT 37,600 MILES, THE LEFT HID BALLAST FAILED; NISSAN REPAIRED THE FAILURE UNDER WARRANTY ALTHOUGH ITS TIME-PORTION HAD EXPIRED. THE SECOND FAILURE W…
2004 INFINITI Q45 LEMON THIS AUTOMOBILE HAS AN IN-SERVICE DATE OF 12-17-04, PURCHASED BY ME ON 02-08-08 AT 26,670 MILES WITH 10 MONTHS REMAINING ON THE TIME WARRANTY THAT'S EXPIRED. IT WAS RETURNED TO MAJOR INFINITI ON 09-29-10 WITH 42,171 MILES ^0,000 WARRANTY) AND…
DT:THE CONSUMERS VEHICLE HAS A CRUISE CONTROL THAT HAS A CHIP THAT IF A CAR GETS TOO CLOSE TO IT SLOWS DOWN. WHEN DRIVING ON THE HIGHWAY AND SOMEBODY CUTS THE CONSUMER OFF IT FEELS LIKE SOMEONE STEPPED ON THE BRAKE DUE TO AN ABRUPT DROP IN SPEED. CONTACTED MANUFACTURER, THE…
THE CONSUMER BELIEVES THAT THE LASER CONTROLLED CRUISE CONTROL COULD BE A POTENTIAL SAFETY ISSUE TO AN UNWARY DRIVER. *NM THE SYSTEM DOES NOT WORK IN THE RAIN OR WHEN DRIVING INTO THE SUN AT SUNSET. THE SYSTEM ACTIVATES THE BRAKES WHILE PASSING OTHER VEHICLE AND THERE IS NO AU…
Source: NHTSA Complaints Database. Real owner reports for the 2004 Infiniti Q45.
Safety recalls
2004 Infiniti Q45 recalls
2 campaignsNHTSA recall campaigns for the 2004 Infiniti Q45. With 2 recalls, buyers should verify all recall repairs are completed before purchase. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
AIR BAGS:SIDE/WINDOW
EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH
Research more
Keep researching before you buy
Compare brands and categories, then check the exact car's history by VIN.
Questions
2004 Infiniti Q45 buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2004 Infiniti Q45 reliable?▾
Good Record. NHTSA currently shows 7 owner complaints, 0 crash-related complaints, and 2 recall campaigns for this model year. The 2004 Q45 may be worth considering for a buyer willing to inspect electrical and steering systems, but the low complaint count limits reliability conclusions. Pre-purchase inspection is essential. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.
What are the most common problems with the 2004 Infiniti Q45?▾
#1: Electrical Faults (3 complaints). #2: Steering Defects (2 complaints). #3: Engine Problems (2 complaints)
At what mileage do problems start on the 2004 Infiniti Q45?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2004 Infiniti Q45?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2004 Infiniti Q45, NHTSA complaints include 0 crash-related reports and 0 fire reports out of 7 total complaints. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2004 Infiniti Q45 have any recalls?▾
Yes. 2 NHTSA recall campaigns affect the 2004 Infiniti Q45. A major recall area is AIR BAGS:SIDE/WINDOW. With 2 recalls, buyers should verify all recall repairs are completed before purchase. Always verify open recalls by VIN because completion status varies by vehicle.
Should I buy a 2004 Infiniti Q45?▾
The 2004 Q45 may be worth considering for a buyer willing to inspect electrical and steering systems, but the low complaint count limits reliability conclusions. Pre-purchase inspection is essential. Electrical faults and steering defects can lead to costly repairs or safety concerns, making pre-purchase inspection critical. Pay extra attention to Electrical Faults during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpectorAI.
Wider context: See the full Infiniti Q45 reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2004 Infiniti Q45 based on your ownership experience.
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Ratings are based on owner experience and are separate from NHTSA data shown above.
Before you buy
Check the exact vehicle history before you buy
Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.