2003 Infiniti Q45 Brakes Problems
- Complaints
- 2about this part
- Share
- 17%of 12 total for the year
- Median mileage
- 75,151miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the brakes of the 2003 Infiniti Q45, 17% of the 12 complaints for this model year. Where a mileage was given, the median is 75,151 miles. 1 of these say a crash was involved, according to the filers.
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 brakes in this vehicle malfunctioned and by such caused a very serious accident. The dealer, nissan of the eastside in bellevue wa was supposed to fix said brakes as I noted that they were not operating correctly in my test drive of the vehicle and I wrote the contract subject to the brakes being fixed. When they didn't fix the brakes they were committing fraud and also in breech of contract.. They did not fix the brakes as agreed. Infiniti of fife then supposedly did said brake work. A few days later the car is in an accident due to brake failure. …”
NHTSA complaint #10255514, filed 2009-01, 40,100 miles“Bought 2003 q 45 in spring 2007, still under warranty. June 2009 at 79,000 miles the engine was replaced (under warranty). 6/30/09, 80,081 miles car problem with no acceleration and service engine and cruise control light coming on. Problem didn't reoccur until june 2012 when engine suddenly cut off while driving. Would restart in neutral but in a week or so it did it again on the interstate at about 55. Fortunately was in right lane and could get to emergency lane before someone ran into me. Car restarted. …”
NHTSA complaint #10519942, filed 2013-06, 110,202 milesRelated service bulletins
- 10127461Nov 28, 2017BRAKE NOISE/JUDDER/PEDAL FEEL DIAGNOSIS AND REPAIR This bulletin has been amended to include vehicles built up to the publication date. Also, tips for using the ProCut? brake…
- 10192219Jul 23, 2013SERVICE INFORMATION - This bulletin is to assist you in responding to customer questions about brake operation, and provides diagnostic and repair information for each item…
- 10192218Jul 23, 2013If YOU CONFIRM: A vehicle needs to have the brake rotors resurfaced (front or rear). ACTION: Use the ProCut PFM Series on-car brake lathe to perform brake rotor resurfacing and…
Brakes: other model years
Other parts of the 2003 Infiniti Q45
6 complaintsElectrical system
3 complaintsSteering
3 complaintsElectronic stability control
2 complaintsEngine cooling
1 complaintsSeat belts
1 complaintsTransmission and drivetrain
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