2003 Infiniti Q45 Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 8%of 12 total for the year
- Median mileage
- 186,241miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 2003 Infiniti Q45, 8% of the 12 complaints for this model year. Where a mileage was given, the median is 186,241 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The circuit board for crank position sensor and cam position sensor have improper solder joints. This has caused the service engine light to come on, the engine may not start, power reduces, engine stalls at a traffic light or while in motion, on a city street or highway or while making a turn. This is also a common problem with the 2002 Infiniti m45, Q45; 2003 Infiniti i35, m45; 2003 nissan altima, maxima, murano, sentra. There are 11 consumer complaints, 3 investigations and 33 service bulletins regarding this issue with the 2003 Q45. Infiniti/nissan recall # 03v455000”
NHTSA complaint #11415335, filed 2021-05, 186,241 milesRelated service bulletins
- 10149806Oct 12, 2018TRANSMISSION & ENGINE AUTOMATED DATA COLLECTION AND DIAGNOSTIC REPORTING SERVICE INFORMATION To support proper diagnosis and to promote Fixed-Right-First-Time ? Infiniti may…
- 10192822May 10, 2016SERVICE INFORMATION Replacement 5-speed rear wheel drive Automatic Transmission (A/T) assemblies and replacement control valves (valve bodies) now come with blank Transmission…
- 10033227Feb 11, 2010Infiniti: 5 speed a/t dtc diagnoses for p1701, p1702, p1703, p1704, p1705, p1754, p1759, p1764, p1769, p1774. Applies to re 5r05a only transmissions (5 speed a/t). If one or more…
Transmission and drivetrain: other model years
Other parts of the 2003 Infiniti Q45
6 complaintsElectrical system
3 complaintsSteering
3 complaintsBrakes
2 complaintsElectronic stability control
2 complaintsEngine cooling
1 complaintsSeat belts
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2003 Infiniti Q45
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology