Major Problems with Infiniti Q45 Derived from Complaints & Recalls

Learn about the common problems with a used Infiniti Q45 to avoid purchasing a bad year of the model.

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Best and Worst Years for Infiniti Q45

Explore the chart showing how many complaints have been filed for each year of Infiniti Q45.

Model Year	Complaints
2005 Q45	4
2004 Q45	7
2003 Q45	11
2002 Q45	20
2001 Q45	4
2000 Q45	9
1999 Q45	9

Worst 3 Infiniti Q45 complaints

2005 Infiniti Q45 AIR BAGS Victims: 1 Mileage: 117000 miles

2002 Infiniti Q45 RECLINER Victims: 1 Mileage: 40000 miles

1999 Infiniti Q45 TIRES Victims: 1

Browse Infiniti Q45 complaints by category

Problems with ELECTRICAL SYSTEM, ENGINE and TIRES are the most frequent issues recorded by the NHTSA from Infiniti Q45 owners.

Problem Category	Number of Problems
ELECTRICAL SYSTEM 2004 infiniti q45 lemon this automobile has an in-service date of 12-17-04 purchased by me on 02-08-08 at 26...	9 ~ 56139 miles
ENGINE i was driving and dashboard lights came on then vehicle cut off on the highway. i assumed it was a	7 ~ 104857 miles
TIRES i purchased 4 new tires for my vehicle on 7/24/2010 the tires in question are michelin p245/45r18 primacy mxv4 96v....	7 ~ 41120 miles
WHEELS right rear tire suddenly began to lose pressure as much as 5 psi in one mile of freeway driving. i...	7 ~ 27646 miles
STEERING i was driving and dashboard lights came on then vehicle cut off on the highway. i assumed it was a	6 ~ 81867 miles
VEHICLE SPEED CONTROL when cruise control is set and the need to pass or speed up is required if you press the gas...	5 ~ 34498 miles
SUSPENSION when auto reaches speed of 60 mph thru 79 mph there is a vibration throughout car. *ak...	5 ~ 23130 miles
ENGINE AND ENGINE COOLING tl* the contact owns a 2003 infiniti q45. while driving various speeds the engine stalled without warning and all power...	4 ~ 39622 miles
AIR BAGS tl* the contact owns a 2005 infiniti q45. the contact stated that while driving 35 mph another vehicle crashed into...	4 ~ 108250 miles
SEATS tl* the contact owns a 2005 infiniti q45. the contact stated that while driving 35 mph another vehicle crashed into...	3 ~ 74058 miles
ELECTRONIC STABILITY CONTROL my 2003 infiniti q45 repeatedly stalls [so far 15+ times] and often will not restart [10+ times]. with my family...	3 ~ 112067 miles
EXTERIOR LIGHTING 2004 infiniti q45 lemon this automobile has an in-service date of 12-17-04 purchased by me on 02-08-08 at 26...	3 ~ 34591 miles
BODY > STRUCTURE tl* the contact owns a 2004 infiniti q45. the contact stated that the vehicle's frame was corroded. the vehicle was...	2
SERVICE BRAKES, HYDRAULIC 2004 infiniti q45 lemon this automobile has an in-service date of 12-17-04 purchased by me on 02-08-08 at 26...	2 ~ 38557 miles
CRUISE CONTROL > VEHICLE SPEED CONTROL the consumer believes that the laser controlled cruise control could be a potential safety issue to an unwary driver. *nm...	2 ~ 500 miles
PRESSURE MONITORING AND REGULATING SYSTEMS > TIRES low tire pressure warning light came on along with lcd information that vehicle needed to be taken to dealer for...	2 ~ 53500 miles
RIM > WHEELS i own a 2002 infiniti q45 which was purchased new. since taking delivery of the vehicle on august 8 2002...	2 ~ 21032 miles
HEADLIGHTS > EXTERIOR LIGHTING vehicle unsafe to drive at night because of the short range that the normal headlights illuminate. *ph (nar) transfered to	2
SEAT BELTS tamara recalled my seatbelt light has been on for the last year. i were told by the infinity dealer that...	1
FUEL SYSTEM, GASOLINE i am not able to fill my gas tank via a standard fuel station pump. i have to manually insert	1 ~ 144564 miles
FUEL/PROPULSION SYSTEM i am not able to fill my gas tank via a standard fuel station pump. i have to manually insert	1 ~ 144564 miles
SERVICE BRAKES bought 2003 q 45 in spring 2007 still under warranty. june 2009 at 79 000 miles the engine was replaced...	1 ~ 110202 miles
SIDEWALL > TIRES i purchased 4 new tires for my vehicle on 7/24/2010 the tires in question are michelin p245/45r18 primacy mxv4 96v....	1 ~ 81600 miles
SERVICE BRAKES, ELECTRIC the brakes in this vehicle malfunctioned and by such caused a very serious accident. the dealer nissan of the eastside...	1 ~ 40100 miles
IGNITION > ELECTRICAL SYSTEM tl*the contact owns a 2005 infiniti q45. while the vehicle was parked the contact attempted to start the vehicle however...	1 ~ 17000 miles
HINGE AND ATTACHMENTS > HOOD > BODY while checking the oil in the 1999 q45 infiniti the hood suddenly fell and slammed closed. this happened in january...	1 ~ 127000 miles
UNKNOWN OR OTHER i had a problem with my car with the tires constantly leaking. i had to fill them with air all...	1 ~ 60000 miles
ALTERNATOR/GENERATOR/REGULATOR > ELECTRICAL SYSTEM tl* - the contact stated that during 2006 they replaced the alternator in her 2001 infiniti q45. the contact is...	1
AUTOMATIC TRANSMISSION > POWER TRAIN transmission would shift hard while shifting from first to second gear and vehicle would vibrate uncontrollably. driver took the vehicle	1
STRAP/WEBBING > TETHER > CHILD SEAT child safety seat failure harness adjuster fails to properly tighten. bf sc *jb...	1
ROTOR > DISC > FOUNDATION COMPONENTS consumer and the dealership noticed that engine was consuming 2 and a half quarts of oil every 4400 miles. also...	1
RECLINER > FRONT ASSEMBLY > SEATS my "2002" infiniti automobile model q45 was rear ended by another auto while traveling through an interstate construction zone. my...	1 ~ 40000 miles
ENGINE > ENGINE AND ENGINE COOLING 1 - there is up to a two second delay when quick acceleration is required. at times it feels as...	1 ~ 150 miles
PARKING BRAKE 1 - there is up to a two second delay when quick acceleration is required. at times it feels as...	1 ~ 150 miles
CONTROL MODULE (TCM, PCM) > AUTOMATIC TRANSMISSION > POWER TRAIN 1 - there is up to a two second delay when quick acceleration is required. at times it feels as...	1 ~ 150 miles

FAQ

What year Infiniti Q45 is the most reliable?

Speaking of the models produced in the last 7 years, Infiniti Q45 models of 2005, 2001, 2004 year of manufacture have had the least number of complaints.

What year was a bad year for Infiniti Q45?

Infiniti Q45 models of 2002 and 2003 are probably the years to be avoided like the plague due to a higher than an average number of issues reported.

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