Total Complaints
49 filings
INFINITI Q45 · model year
1991 INFINITI Q45
49 NHTSA complaints, 3 crash reports for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1991INFINITIQ45 carries 49 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 3 crashes, 4 fires, 3 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1991 Q45 is equipment:electrical:radio/tape deck/cd etc. with 6 filings, followed by service brakes, hydraulic:foundation components:disc:pads (4) and suspension:front (3). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 7 investigation files overlapping the 1991 Q45. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
49
Complaints
3
Crashes
4
Fires
3
Injuries
0
Deaths
Crashes Reported
3 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC. | 6 |
| SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS | 4 |
| SUSPENSION:FRONT | 3 |
| ELECTRICAL SYSTEM:IGNITION | 2 |
| ENGINE AND ENGINE COOLING:ENGINE:GASOLINE | 2 |
| VISIBILITY:POWER WINDOW DEVICES AND CONTROLS | 2 |
| POWER TRAIN:MANUAL TRANSMISSION | 2 |
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 1 |
| ELECTRICAL SYSTEM:HORN | 1 |
| SUSPENSION:REAR:SPRINGS | 1 |
| ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR | 1 |
| ENGINE AND ENGINE COOLING:EXHAUST SYSTEM | 1 |
| VISIBILITY:WINDSHIELD | 1 |
| SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER | 1 |
| VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT | 1 |
Recent Complaints
20040529AIR BAGS
I AM CONCERNED ABOUT THE PASSIVE RESTRAINTS(AIR BAGS) THAT WERE USED IN THE 1991, INFINITI, Q45. AFTER DOING SOME RESEARCH I HAVE DISCOVERED THAT IN NUMEROUS ACCIDENTS THE AIR BAG FAILED TO DEPLOY, AND INJURIES RESULTED. ADDITIONALLY, I HAVE UNCOVERED THAT INFINITI IS AWARE OF THE PROBLEM, YET A RECALL WAS NEVER ISSUED. IN INFINITI'S OWE IN HOUSE BULLETINS IT IS LISTED THAT THERE IS A PROBLEM WITH THE "CRASH ZONE SENSOR." ALSO REFERENCE IS MADE REGARDING A "PINS IN CONNECTOR FOR BETTER CONTACT" AND THE AIR BAG HARNESS. WHY HASN'T A RECALL BEEN ISSUED? FORTUNATELY I HAVE NOT BEEN INVOLVED IN AN ACCIDENT IN THE THIRTEEN YEARS THAT I HAVE OWED MY 1991 INFINITI Q45. HOWEVER, NOW I AM NOW WORRIED. SINCE I HAVE NOT PERSONAL EXPERIENCED THIS PROBLEM AND YOU HAVE A REQUIRED FIELD I HAVE USED THE DATE MY CAR WENT INTO ACTIVE SERVICE. *LA
20020913WHEELS:RIM
CONSUMER STATES THAT THE RIM ON THE VEHICLE CRACKED PREMATURELY, WITHOUT VEHICLE BEING IN AN ACCIDENT. NOT THE ORGINIAL RIM OF THE VEHCILE KMC RIMS.PLEASE PROVIDE MORE INFO. NLM
20010530CrashLATCHES/LOCKS/LINKAGES:HOOD:LATCH
WRECK ON PASS SIDE AFTER HOOD CAME UP AND IT WAS LATCH BUT CAME LOOSE. *AK
20001219ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
INTERMITTENTLY, THE VEHICLE STALLS OUT WHEN DECELERATING AND THE POWER STEERING DISENGAGES. THIS HAS CAUSED ALMOST SERVERAL MISSED CRASHES. A TECHNICAL SERVICE BULLETIN # FC0008624 HAS BEEN ISSUED ON THIS SITUATION. (LETTER WRITTEN BY FATHER FOR DAUGHTER) *CJ
20001030STRUCTURE:BODY
SUNVISORS HIT DRIVER OR PASSENGER ON HEAD WHEN GOING AROUND TURNS. SUNVISORS ARE NOT ADJUSTABLE AND CANNOT BE REPAIRED BY DEALER.*AK
19990812POWER 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. *AK
19990812FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
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. *AK
19990812SUSPENSION:FRONT
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. *AK
19990724EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
FRONT SPEAKERS BEGAN MALFUNCTIONING LESS THAN AN HOUR AFTER A RECALL SERVICE REPLACING THE REAR SPEAKER AMPLIFIORS. RECALL NOTICE STATED THAT REAR SPEAKERS COULD MALFUNCTION AND CAUSE A FIRE. THE NOTICE WARNED THAT IF A "POP" WAS HEARD TO TURN OFF THE SYSTEM. WITHIN LESS THAN AN HOUR OF THE RECALL SERVICE THE FRONT SPEAKERS BEGAN TO OCCASINALLY "POP" AND THEN GO OFF AND ON. THE CASSETTE PLAYER ALSO BEGAN TO MALFUNCTION FOR THE FIRST TIME , GO "OFF AND ON" AND PLAYS TAPES AT AN ACCELEATED RATE OF SPEED. DEALER AND INFINITTI HAVE BEEN CONTACTED AND REFUSE TO CORRECT THE PROBLEMS STATING NO CONNECT BETWEEN THE PERFORMED RECALL AND THREE COMPONENT SYSTEM MALFUNCTION WHCIH APPEARED FOR THE FIRST TIME LESS THAN AN HOUR LATER. PLEASE TELL ME IF THE FRONT SPEAKER "POPPING" REPRESENTS ANY KIND OF SAFETY RISK AND IF SO WHAT I NEED TO DO?
19990723ELECTRICAL SYSTEM:IGNITION:MODULE
THE COMPUTER ALMOST CAUGHT ON FIRE BECAUSE IT IT'S LOCATED DIRECTLY ABOVE THE GAS TANK. THE DEALER AND MANUFACTURER HAVE BEEN NOTIFIED. *AK
19990708FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
TERMINAL TO FUEL MODULATOR SHORTED CAUSING FAILURE OF MODULATOR. THIS OCCURRED TWICE AND RESULTING IN FAILURE OF A SECOND MODULATOR AND FUEL PUMP.
19990402FireEQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
THE NHTSA DID A RECALL ON THE BACK SPEAKERS FOR THIS SAME CAR AND THERE IS A PROBLEM WITH THE FRONT SPEAKER AS WELL. *AK
19990315FireEQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
SHORT OR SPARK BEHIND RADIO RESULTED IN VEHICLE FIRE.
19990315EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
RECALL REPAIR OF THE REAR SPEAKER/AMPLIFIERS COMPLETED, FRONT SPEAKERS ARE EXPERIENCING SAME DEFECT HOWEVER ARE NOT INCLUDED IN THE RECALL REPAIR.
19990312EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
CONSUMER UNPLUGGED THE SPEAKER FROM THE FRONT DRIVER'S SIDE DOOR AFTER HE HAD EXPERIENCED FUMED/ODORS FROM THAT AREA. CONSUMER RECEIVED A RECALL NOTICE FOR THE REAR SPEAKER FIRES--I RECALL 9V-284. *AK
19990216FireUNKNOWN OR OTHER
NO SUMMARY LISTED FOR THIS VEHICLE. *AK
19990212POWER 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. *AK
19990108ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
RADIATOR CAP LEAKS, CAUSING FLUID TO LEAK OUT ONTO THE ENGINE WHILE THE VEHICLE IS BEING DRIVEN. DEALER HAS BEEN CONTACTED. *AK
19981117FireEQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
LEFT REAR SPEAKER IGNITED, RESULTING IN A FIRE. VEHICLE WAS TOTALED. *AK
19980519SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS
VEHICLE HAS DEFECTIVE BRAKE PADS. WHILE DRIVING AND PRESSING THE BRAKE PEDAL, IT GOES DOWN METAL TO METAL. THERE WAS NO WARNING/INDICATOR LIGHT. SPEED LIMIT IS AT NORMAL OR BELOW, WHEN GOING DOWN HILL THE VEHICLE IS IN SECOND GEAR, DEALER CONTACTED DEALER, AND STATES THAT THE PADS ARE SUFFICIENT FOR THE VEHICLE. *AK
Compare 1991INFINITIQ45 to Similar Vehicles
NHTSA Investigations
PE23023Preliminary EvaluationClosed
Complete loss of motive power due to engine failure
RQ15001Recall QueryClosed
Occupant Classification System Failure
PE15001Preliminary EvaluationClosed
Improper Frontal Air Bag Deployment
PE14034Preliminary EvaluationClosed
Steering column separation
PE12022Preliminary EvaluationClosed
Collision Mitigation System Malfunction
Frequently Asked Questions
How many complaints does the 1991 INFINITI Q45 have?▼
The 1991 INFINITI Q45 has 49 NHTSA complaints, 3 crashes, 4 fires, 3 injuries, and 0 deaths reported.
What are the most common problems with the 1991 INFINITI Q45?▼
The most-complained component for the 1991 INFINITI Q45 is EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC. with 6 complaints. Other frequently reported areas include SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS and SUSPENSION:FRONT.
Is the 1991 INFINITI Q45 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.