2005 Infiniti Q45
The Verdict
The 2005 Infiniti Q45 has 4 owner complaints filed with NHTSA. The most reported issues are body (2 complaints) and electrical (2 complaints). With a Klunk Score of 99/100, it earns a "Smooth Ride" rating.
This is the cleanest year on record. Nice pick.
Klunk Score: Smooth Ride
This vehicle year has significantly fewer complaints than average. A reliable choice.
How is this calculated?
The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.
Recalls 2
Active safety recalls from NHTSA for this vehicle year.
CERTAIN PASSENGER VEHICLES EQUIPPED WITH POWER REAR SEATS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." THE LOWER ANCH...
Risk
IF A CHILD SEAT IS NOT SECURED, THERE IS AN INCREASED RISK OF INJURY IN A CRASH.
Remedy
DEALERS WILL REPLACE THE LOWER ANCHORAGE BRACKETS WITH MODIFIED ONES TO ENSURE THAT THE STANDARD IS MET. THE RECALL BEGAN ON OCTOBER 17, 2005. OWNERS MAY CONTACT INFINITI AT 1-800-662-6200.
Reported Apr 10, 2026
CERTAIN VEHICLES FAIL TO COMPLY WITH THE STOP LAMP AND REFLEX REFLECTOR REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, 'LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Risk
THIS STANDARD IS TO REDUCE CRASHES, INJURIES AND DEATHS BY PROVIDING ADEQUATE ILLUMINATION OF THE ROADWAY, AND BY ENHANCING THE CONSPICUITY OF MOTOR VEHICLES ON THE PUBLIC ROADS SO THAT THEIR PRESE...
Remedy
DEALERS WILL REPLACE THE REAR COMBINATION LAMP ASSEMBLIES FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT APRIL 16, 2007. OWNERS MAY CONTACT INFINITI AT 1-800-662-6200.
Reported Apr 10, 2026
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Under the Hood
Each number is a complaint. Darker = bigger problem.
By Category
By Severity
Worst Problems
Complaints
WHEN CRUISE CONTROL IS SET, AND THE NEED TO PASS OR SPEED UP IS REQUIRED, IF YOU PRESS THE GAS PEDAL TO THE FLOOR THE CAR TAKES OFF AND *THEN STOPS RESPONDING AND DROPS BACK TO SET CRUISE CONTROL SPEED WHILE YOU ARE STILL FLOORING IT. IT BUCKS BACK AND FORTH. I SPOKE TO SEVERAL OWNERS ON A INFINITI OWNERS SITE AND THERES PERFORMS THE SAME. ITS DANGEROUS IF THE NEED TO SPEED UP OCCURS. THIS IS A PROBLEM IN THE CODING OF THE PARAMETERS IN THE ECU AND COULD BE DEADLY WITH UNEXPECTED PERFORMANCE. THIS HAPPENED ON I40 IN KNOXVILLE TENNESSEE IN HEAVY TRAFFIC. THIS CONDITION CAN BE REPEATED BACK TO BACK MULTIPLE TIMES.
TL* THE CONTACT OWNS A 2005 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, ANOTHER VEHICLE CRASHED INTO HER PASSENGER SIDE. THE AIR BAGS DID NOT DEPLOY AND THE FRONT DRIVER'S SEAT TWISTED TOWARD THE DRIVER'S DOOR DURING THE CRASH. THE CONTACT SUFFERED INJURIES AND WAS TAKEN TO THE HOSPITAL. THE VEHICLE WAS TOWED TO THE CONTACT'S HOME. THE FAILURE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 117,000.
I PURCHASED 4 NEW TIRES FOR MY VEHICLE ON 7/24/2010 THE TIRES IN QUESTION ARE MICHELIN P245/45R18 PRIMACY MXV4 96V. AFTER ONLY 3500 MILES THE REAR RIGHT TIRE BLEW ON THE HIGHWAY, FORTUNATELY FOR ME THERE WAS HEAVY TRAFFIC AND I WAS NOT DOING OVER 30MPH. THE TIRE WAS REPLACED WITH THE SPARE TIRE AND THEN IT WAS DISCOVERED A 3" GASH FROM THE SIDE WALL TO THE FIRST THREAD. NO FOREIGN OBJECTS WERE FOUND IN THE TIRE TO SUGGEST THAT I PICKED SOMETHING ON THE ROAD,HOWEVER I DID NOTICE THAT THE REINFORCEMENTS WERE RIPPED I AM CONCERNED ABOUT THE SAFETY OF THESE TIRES AND HAVE KEPT THE DAMAGED TIRE FOR INSPECTION FOR ANYONE WHO MAY WANT TO INVESTIGATE. THANK YOU. *TR
TL*THE CONTACT OWNS A 2005 INFINITI Q45. WHILE THE VEHICLE WAS PARKED, THE CONTACT ATTEMPTED TO START THE VEHICLE; HOWEVER, THE KEY WOULD NOT TURN IN THE IGNITION. SHE CALLED AAA TO GET THE VEHICLE TO START. THE VEHICLE WAS TAKEN TO THE DEALER FOR SERVICE, BUT NO FAILURES WERE FOUND AT THAT TIME. THE CURRENT MILEAGE WAS 28,000 AND FAILURE MILEAGE WAS 17,000. UPDATED 01/02/08. *LJ UPDATED 12/12/07 *TR