2003 Infiniti Q45 problems, complaints & recalls

2021-05-05 · Vehicle Speed Control · 186,241 mi

“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 m…”

2017-11-29 · Engine · 150,000 mi

“tl* the contact owns a 2003 infiniti q45. while driving 35 mph, the vehicle stalled and the service engine warning indicator illuminated. the contact was able to restart the vehicle after several attempts. the vehicle was taken to an independent mechanic where it was diagnosed that the camshaft position sensor failed and needed replacement. the veh…”

2017-03-29 · Seat Belts

“tamara recalled my seatbelt light has been on for the last year. i were told by the infinity dealer that my car was not recall for the seatbelt. the seatbelt warning light stays on constantly in the navigation system and a little blanking icon. i am told by the dealer that i am responsible for repairs…”

2016-08-08 · Engine And Engine Cooling · 61,000 mi

“tl* the contact owns a 2003 infiniti q45. while driving various speeds, the engine stalled without warning and all power was lost. after several attempts, the vehicle was able to restart. the failure recurred randomly. the vehicle was taken to a dealer where the failure could not be determined. the vehicle was not repaired. the manufacturer was not…”

2015-09-25 · Engine · 112,000 mi

“start car first thing in the am. driving normal. within 5 miles engine shuts off without warning. loose all power. no code appears. auto will not start. finally starts after 5 or 6 tries. this problem has continued to occur every two or three days over the last six months. but auto starts immediately after. auto and transmission are not performing …”

2015-03-31 · Engine · 94,000 mi

“i own a 2003 infinity q45 and without warning this vehicle stalls where ever it wants at a light while you driving on a major highway on a major street no warning what so ever and infinity is aware of the problem but they only want to help certain vin numbers. i took my family skiing to scranton pa and on interstate i80 the car stall without warnin…”

2015-02-04 · Steering · 92,000 mi

“tl* the contact owns a 2003 infiniti q45. the contact stated that while driving at 30 mph, a noise emitted from the front of the vehicle. the vehicle was taken to a dealer. the technician diagnosed that the fan belt and power steering belt needed to be replaced. the vehicle was repaired. in addition, three months later, the vehicle failed to start.…”

2014-07-15 · Steering · 80,000 mi

“tl* the contact owns a 2003 infiniti q45. the contact stated that while driving 35 mph, the steering wheel seized and there was a sudden loss of power. the vehicle was able to restart and resumed to normal. the failure occurred on three occasions. the dealer repaired the vehicle but the failure recurred. the manufacturer was not made aware of the…”

2014-03-23 · Electrical System · 100,000 mi

“i have a 2003 q45 and the car has shut off while driving several times. there is has in the car. i get it maintenance regularly. its shut off while driving on the highway putting my family at risk. its not safe to drive. after doing online searches i determined that a lot of people are having this same issue with this make and model. please resea…”

2013-06-15 · Steering · 110,202 mi

“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…”