2003 Infiniti Q45 Problems

Typical for Model

Real NHTSA owner complaints for the 2003 Infiniti Q45.

20022004
Complaints
20
Crashes
1
Fires
0
Injuries
1
Fatalities
—
Recalls
1

Worst 2003 Infiniti Q45 Problems

Top 3 most-reported issues with average mileage at failure.

#16 complaints

Engine Problems

Avg mileage:119,040 mi
#23 complaints

Electrical Faults

#33 complaints

Steering Defects

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All Problems by Category

Every NHTSA complaint category for the 2003 Infiniti Q45.

Engine Problems
6
complaints
Crashes
—
Fires
—
Avg Miles
119,040
Electrical Faults
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Steering Defects
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Electronic Stability Control
2
complaints
Crashes
—
Fires
—
Avg Miles
—
Engine & Cooling
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Transmission / Drivetrain
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Seat Belt Issues
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Brakes
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Service Brakes, Electric
1
complaints
Crashes
1
Fires
—
Avg Miles
—
Unintended Acceleration
1
complaints
Crashes
—
Fires
—
Avg Miles
—

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2003 Infiniti Q45. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2003 Infiniti Q45

1 NHTSA recall campaign affecting ~1,349 vehicles.

12V079000Air Bags:side/window
~1,349 affected

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.

Other Infiniti Q45 Years

1990199119921993199419951996199719981999200020012002200320042005

2003 Infiniti Q45 — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2003 Infiniti Q45 reliable?
Verdict: Typical for Model. The 2003 Infiniti Q45 has 20 NHTSA complaints, 1 crash-related, and 1 recall campaign. The most common issue is Engine Problems with 6 complaints. Source: NHTSA via VinItel.
What are common problems with the 2003 Infiniti Q45?
Top reported problems: Engine Problems (6 complaints, avg 119,040 mi); Electrical Faults (3 complaints); Steering Defects (3 complaints). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 2003 Infiniti Q45?
The weighted average mileage at time of complaint is about 119,040 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 2003 Infiniti Q45?
NHTSA complaints for the 2003 Infiniti Q45 include 1 crash-related reports, 0 fire reports, 1 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2003 Infiniti Q45 have any recalls?
Yes — 1 NHTSA recall campaign affecting an estimated 1,349 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2003 Infiniti Q45?
Complaint levels are in line with what's expected. Normal used-car due diligence applies — check the specific VIN for accident history, open recalls, and title brands.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Infiniti Q45 reliability report with year-by-year comparison and generation analysis.

Check Your Specific 2003 Infiniti Q45

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