FaultScore

Infiniti Q45 transmission problems

33 of the 307 complaints filed about the Infiniti Q45 are about the transmission — 11% of everything owners reported. The worst model year for it is 1990.

33

Complaints

11%

Share of all complaints

2

Crashes

0

Fires

Transmission & Drivetrain complaints by model year

1990 Q45 14 42.4%

Median failure at 40 miles

1991 Q45 4 12.1%
1992 Q45 8 24.2%

Median failure at 10,500 miles

1993 Q45 1 3.0%
1994 Q45 3 9.1%
2000 Q45 1 3.0%
2002 Q45 1 3.0%

Median failure at 150 miles

2003 Q45 1 3.0%

Median failure at 186,241 miles

What owners said

2003 Infiniti Q45 at 186,241 miles Atlanta, GA

POWER TRAIN

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 M45, Q45; 2003 INFINITI I35, M45; 2003 NISSAN ALTIMA, MAXIMA, MURANO, SENTRA. THERE ARE 11 CONSUMER COMPLAINTS, 3 INVESTIGATIONS AND 33 SERVICE BULLETINS REGARDING THIS ISSUE WITH THE 2003 Q45. INFINITI/NISSAN RECALL # 03V455000

NHTSA complaint #11415335 — an unverified report by a vehicle owner.

1992 Infiniti Q45 at 10,500 miles Antalope, CA Crash

POWER TRAIN:AUTOMATIC TRANSMISSION

TL* - THE CONTACT STATED THAT SHE HAD PURCHASED 1992 INFINITY Q45 ON 02/2006 ,AND ON 12/21/06 THE CONTACT'S VEHICLE WAS INVOLVED IN A CRASH. THE CONTACT STATED THAT THE VEHICLE STEERING WAS DIFFICULT TO HANDLE. THE CONTACT STATED THAT SHE HAS HAD PROBLEMS WITH THE TRANSMISSION LEAKING. THE DEALERSHIP THAT SOLD HER THE TRANSMISSION, AND ENGINE HAD TO REPLACE THEM, , AND T THE VEHICLE NEEDED SEVERAL OTHER REPAIRS AS WELL. THE DEALERSHIP SOLD HER THE VEHICLE THAT WAS NOT SAFE. THE CONTACT STATED THAT ON NUMEROUS OCCASIONS SHE WAS NOT ABLE TO REMOVE THE KEY FROM THE IGNITION.

NHTSA complaint #10178243 — an unverified report by a vehicle owner.

2002 Infiniti Q45 at 150 miles Redondo Beach, CA

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

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. IF THE TRANSMISSION IN PARK FAILS, THE VEHICLE WILL ROLL. ALL ISSUES ARE CONSIDERED TO BE NORMAL BY THE MANUFACTURER. THEY CORRECTED THE PROBLEM ON THEIR NEW 2005 VERSION AND REFUSE TO DO SO ON MY VEHICLE.

NHTSA complaint #10120811 — an unverified report by a vehicle owner.

2000 Infiniti Q45 Stone Mountain, GA

POWER TRAIN:AUTOMATIC TRANSMISSION

TRANSMISSION WOULD SHIFT HARD WHILE SHIFTING FROM FIRST TO SECOND GEAR, AND VEHICLE WOULD VIBRATE UNCONTROLLABLY. DRIVER TOOK THE VEHICLE TO THE DEALER FOR INSPECTION, AND MECHANIC COULD NOT DUPLICATE THE PROBLEM. ALSO, VEHICLE WAS OPERATING AS DESIGNED.

NHTSA complaint #10117286 — an unverified report by a vehicle owner.

1990 Infiniti Q45 at 40 miles Greenville, SC

POWER TRAIN:AUTOMATIC TRANSMISSION

TRANSMISSION FAILURE.

NHTSA complaint #10072769 — an unverified report by a vehicle owner.

1993 Infiniti Q45 White Settlement, TX

POWER TRAIN:AUTOMATIC TRANSMISSION

EXTREME PROBLEMS WITH FUEL SYSTEMS AND/OR TRANSMISSION.... TRANS JUST SERVICED IN OCTOBER OF 2003.

NHTSA complaint #10062666 — an unverified report by a vehicle owner.

1992 Infiniti Q45 Washington, DC

POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

MANUFACTURER ISSUED A RECALL REGARDING THE FILTRATION AND COOLING PERFORMANCE FOR THE AUTOMATIC TRANSMISSION, RECALL STATES THAT AN EXTERNAL FILTER AND COOLER WOULD BE INSTALLED AND THE TRANSMISSION WOULD BE INSPECTED, VEHICLE IS EXPERIENCING PROBLEMS AND CONSUMER IS BEING REFUSED RECALL. *SLC

NHTSA complaint #554164 — an unverified report by a vehicle owner.

1994 Infiniti Q45 Roanoke, AL

POWER TRAIN:AUTOMATIC TRANSMISSION

THIS IS A LEMON WHICH NOW THREATENS PUBLIC SAFETY. INFINITI DOESN'T SEEM TO CARE

NHTSA complaint #730251 — an unverified report by a vehicle owner.

1994 Infiniti Q45 Roanoke, AL

POWER TRAIN:AUTOMATIC TRANSMISSION

THIS IS A LEMON WHICH NOW THREATENS PUBLIC SAFETY. INFINITI DOESN'T SEEM TO CARE

NHTSA complaint #730251 — an unverified report by a vehicle owner.

1992 Infiniti Q45 Orlando, FL

POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH

THE KEY CAME OUT OF THE IGNITION WITHOUT THE CAR BEING IN PARK.

NHTSA complaint #782850 — an unverified report by a vehicle owner.

1990 Infiniti Q45 Bogart, GA

POWER TRAIN:AUTOMATIC TRANSMISSION

I WAS TRICKED INTO BUYING THIS VEHICLE, BEING A FIRST TIME BUYER AND DIVORCED. INCLUDING THIS MAJOR FUEL LEAK (WHICH HAS NOT BEEN ESTABLISHED EXACTLY WHERE THE LEAK IS COMING FROM) THE TRANSMISSION IS GONE. EVEN IF THE TRANSMISSION IS REPLACED THE VEHICLE IS STILL TO HAZARDOUS TO DRIVE. I AM AT MY WITS END WITH THIS CAR BECAUSE I STILL OWE MONEY ON IT.

NHTSA complaint #717648 — an unverified report by a vehicle owner.

1992 Infiniti Q45 Atascadero, CA

POWER TRAIN:AUTOMATIC TRANSMISSION

WE WERE ON EAST-BAY FREEWAY, CENTER LANE, GOING 65 MPH, NO POWER...WE WERE FORTUNATE IT WAS CHRISTMAS MORNING AND NOT MUCH TRAFFIC...

NHTSA complaint #717560 — an unverified report by a vehicle owner.

1992 Infiniti Q45 Atascadero, CA

POWER TRAIN:AUTOMATIC TRANSMISSION

TOOK VEHICLE TO NISSAN DEALERSHIP...FIRST REPLACEMENT TRANSMISSION INSTALLED WAS FAULTY SO THEY THEN HAD TO RE-ORDER ANOTHER NEW TRANSMISSION TO INSTALL...OUR VEHICLE WAS NOT RETURNED UNTIL 1/12/00.

NHTSA complaint #717497 — an unverified report by a vehicle owner.

1990 Infiniti Q45 Mountain Brook, AL

POWER TRAIN:AUTOMATIC TRANSMISSION

NO SUMMARY LISTED FOR ABOVE VEHICLE.

NHTSA complaint #717000 — an unverified report by a vehicle owner.

1990 Infiniti Q45 SAN Leandro, CA

POWER TRAIN:AUTOMATIC TRANSMISSION

TRANSMISSION IS NOISY UPON ENGAGING. DEALER WAS CONTACTED, AND RECOMMENDED REPLACEMENT DUE TO INTERNAL PROBLEMS. NO WARRANTY, REPAIRWORK BEING DONE. PROVIDE FURTHER INFORMATION.

NHTSA complaint #832062 — an unverified report by a vehicle owner.

1992 Infiniti Q45 Mobile, AL

POWER TRAIN:AUTOMATIC TRANSMISSION

VEHICLE MADE A LOUD NOISE AND THE ENGINE COMPLETELY SHUT OFF. DELAER SAID THE VEHICLE NEEDED A NEW TRANSMISSION. *YC CONSUMER STATES THERE WAS NO WARNING OR INDICATION VEHICLE WAS GOING TO CUT OFF. *SLC

NHTSA complaint #837369 — an unverified report by a vehicle owner.

1991 Infiniti Q45 Orlando, FL

POWER TRAIN:AUTOMATIC TRANSMISSION

WHEN SWITCHING GEARS FROM PARK TO DRIVE VEHICLE HESITATES, CONSUMER ALSO, WHEN TRAVELING THERE IS A LOUND NOISE COMING FROM THE FRONT END, TRANSMISSION SLIPPING. CONSUMER HAS CONTACTED THE DEALER, DEALER STATED FUEL FILTER LINE NEEDED REPLACING. PLEASE PROVIDE ANY FURTHER DETAILS.

NHTSA complaint #844944 — an unverified report by a vehicle owner.

1992 Infiniti Q45 Dana Point, CA

POWER TRAIN:AUTOMATIC TRANSMISSION

TRANSMISSION FAILS AND MAKES GRINDING NOISE AND HEAVY VIBRATION WHEN BEING DRIVEN. DEALER HAS BEEN CONTACTED.

NHTSA complaint #833680 — an unverified report by a vehicle owner.

1991 Infiniti Q45 Hull, GA

POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

DEFECTIVE TORQUE CONVERTER IS CAUSING A VIBRATION EFFECT WHEN GAS IS PRESSED AND SPEEDODMETER READS 40-55 MPH. DEALER CONTACTED, AND ARE AWARE OF THE PROBLEM WITH OTHER MODELS, BUT NOT ON THIS MODEL. HOWEVER, PROBLEM STILL EXISTS. PROVIDE FURTHER INFORMATION.

NHTSA complaint #834811 — an unverified report by a vehicle owner.

1990 Infiniti Q45 Birmingham, AL

POWER TRAIN

TRANSMISSION FAILED DUE TO COOLING SYSTEM MALFUNCTION.

NHTSA complaint #529635 — an unverified report by a vehicle owner.

Other Infiniti Q45 problems