2003 Infiniti M45: Reliability Data

Source: NHTSA — 177 complaints
177
Total Complaints
95,000mi
Median Mileage
FUEL SYSTEM, GASOLINE
Top Issue
0
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

70,000 25th Percentile
95,000 Median Mileage
124,963 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

FUEL SYSTEM, GASOLINE
65
ENGINE
23
ELECTRICAL SYSTEM
22
ENGINE AND ENGINE COOLING
13
FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
6
FUEL SYSTEM, OTHER
5
SEATS
5
FUEL/PROPULSION SYSTEM
5
ENGINE AND ENGINE COOLING:ENGINE
4
POWER TRAIN
4

Severity Assessment

0
Crashes
0
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"MICHELIN PILOT HX MXM4 ALL SEASON TIRES FAILED IN 1" WET SNOW CONDITION. MICHELIN ISREFUSING TO ACCEPT TIRES DO NOT WORK IN SNOW. THEY WERE SOLD AS ALL SEASON AND HAVE A M+S ON THE SIDE FOR MUD AND SNOW. MY CAR SLID OFF THE CROWN OF THE ROAD INTO THE GRASS. THE CONDITIONS WERE NOT ICY. ALL OF O..."
"2003 INFINITI M45 CONSUMES 4 ML OF OIL AFTER ONLY 1000 MILES AND TOLD BY DEALERSHIO AND MANUFACTURER THAT THIS IS NORMAL.*AK"
"VEHICLE CONSUMES 1 QUART OF MOTOR OIL EVERY 1000 MILES. IT CAUSES CARBON BUILDUP IN THE COMBUSTION CHAMBERS. I WAS TOLD I WOULD HAVE TO PAY TO GET THE CARBON CLEANED PERIODICALLY. VEHICLE HAS 24000 MILES AND IS STILL UNDER WARRANTY. MANUFACTURER SAYS THIS TYPE OF CONSUMPTION IS NORMAL AND DOES NOT W..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28