2002 Infiniti Q45 Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 5%of 20 total for the year
- Median mileage
- 150miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 2002 Infiniti Q45, 5% of the 20 complaints for this model year. Where a mileage was given, the median is 150 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.
“1 - there is up to a two second delay when quick acceleration is required. At times it feels as if the engine completely stalled. 2 - the vehicle often will not downshift to slow the vehicle on a hill. I could be in 5th gear at around only 1800 RPM, and when I downshift twice, it will not go to 3rd. I often have to downshift up to 6 times for it to respond and switch to third. I need to take my eyes off the road to constantly check if I'm in the gear I select. 3 - the parking/emergency break will not hold the fully loaded vehicle on a hill. …”
NHTSA complaint #10120811, filed 2005-05, 150 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…
Transmission and drivetrain: other model years
Other parts of the 2002 Infiniti Q45
4 complaintsAir bags
3 complaintsExterior lighting
3 complaintsWheels
3 complaintsBrakes
2 complaintsElectrical system
2 complaintsSeats
2 complaintsTires
2 complaintsVehicle speed control
2 complaintsElectronic stability control
1 complaintsFuel system
1 complaintsOther or unknown
1 complaints
← All problems reported for the 2002 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