VehicleVerdict

1991 Infiniti Q45 problems

Verdict · NHTSA data

One of the years to avoid

With 49 complaints filed to NHTSA — about 4.3 times the median Q45 year — the 1991 model ranks #1 of 20 Q45 years for complaint volume. It lands on the years-to-avoid list.

Electrical System leads the complaint categories with 13 reports (27% of the total).

49

NHTSA complaints

2

Recalls

3

Investigations

3

Crash-involved

4

Fires reported

3

Injuries

0

Deaths

—

NCAP overall

How does 1991 compare to other Q45 years?

Q45 NHTSA complaints by model year, 1991 highlighted49 complaints1987: 0 complaints1988: 0 complaints1989: 0 complaints1990: 33 complaints1991: 49 complaints1992: 34 complaints1993: 3 complaints1994: 47 complaints1995: 8 complaints1996: 8 complaints1997: 13 complaints1998: 16 complaints1999: 10 complaints2000: 13 complaints2001: 5 complaints2002: 29 complaints2003: 20 complaints2004: 14 complaints2005: 5 complaints2006: 0 complaints
Q45 NHTSA complaints by model year, 1991 highlighted. Red bars are years to avoid.

See all Q45 years to avoid →

What are the most common 1991 Infiniti Q45 problems?

ComponentComplaintsShare
Electrical System1327%
Brakes816%
Suspension510%
Visibility & Wipers48%
Transmission48%
Engine48%
Latches & Locks24%
Fuel System24%
Airbags24%
Tires & Wheels24%
Climate Control (A/C & Heat)12%
Other12%
Body & Structure12%

Does the 1991 Infiniti Q45 have recalls?

2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

98V284000Electrical SystemNovember 5, 1998 · 28,970 units

Defect

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH BOSE REAR SPEAKERS THAT HAVE AN INTEGRAL AMPLIFIER. A CONDUCTIVE BRIDGE CAN FORM BETWEEN TWO LINES OF THE CIRCUIT BOARD PATTERN WHEN THERE IS ACCUMULATED ELECTROLYTE LEAKED FROMA CAPACITOR AND HIGH HUMIDITY CONDITIONS. THIS CAN CLOSE A TRANSISTOR ON THE CIRCUIT BOARD WHICH CAUSES OVERHEATING.

Consequence

THIS CONDITION COULD RESULT IN SMOKE OR FLAME AND POSSIBLY THE SPEAKER CATCHING FIRE.

Remedy

DEALERS WILL REPLACE THE CIRCUIT BOARD WITH A NEW BOARD THAT HAS BEEN COATED.

95V103002Seat BeltsMay 24, 1995 · 2,730,462 units

Defect

THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY.

Consequence

THE SAFETY BELTS WOULD NOT PROVIDE ADEQUATE PROTECTION TO AN OCCUPANT IN A VEHICLE CRASH.

Remedy

OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD ENSURE THAT BOTH BUCKLES ARE OPERATING PROPERLY BY INSERTING EACH LATCH PLATE INTO ITS BUCKLE, TUGGING ON THE BELT TO MAKE SURE THE LATCH IS SECURELY LOCKED, AND THEN PRESSING THE RELEASE BUTTON. THE LATCH PLATE SHOULD POP OUT OF THE BUCKLE WHEN THE BUTTON IS PRESSED. IF EITHER RELEASE BUTTON SHOWS A SIGN OF BREAKING OR CRACKING OR IF EITHER BUCKLE FAILS TO OPERATE PROPERLY, OWNERS SHOULD PROMPTLY CONTACT THEIR AUTHORIZED DEALER TO SCHEDULE AN APPOINTMENT TO HAVE THE BUCKLE REPLACED OR REPAIRED FREE OF CHARGE.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“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”

Complaint filed with NHTSA · Electrical System · June 20, 1996 · fire

“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…”

Complaint filed with NHTSA · Brakes · May 27, 1997

“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”

Complaint filed with NHTSA · Suspension · August 10, 1999

“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”

Complaint filed with NHTSA · Transmission · August 10, 1999

“RIGHT PASSENGER WINDOW FALLS DOWN INSIDE OF DOOR. TRANSMISSION FLUID LEAKS ONTO EXHAUST SYSTEM RESULTING IN LOTS OF SMOKE.”

Complaint filed with NHTSA · Visibility & Wipers · June 30, 1996

1991 Infiniti Q45 — common questions

Is the 1991 Infiniti Q45 reliable?

NHTSA data argues against it: 49 complaints put the 1991 model at #1 of 20 Q45 years. It is one of the Q45 years to avoid.

What are the most common 1991 Q45 problems?

According to NHTSA complaint data, the leading problem areas are electrical system (13 complaints), brakes (8 complaints), suspension (5 complaints).

Does the 1991 Infiniti Q45 have recalls?

Yes — NHTSA lists 2 recall campaigns affecting the 1991 Infiniti Q45. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 1991 Infiniti Q45 under NHTSA investigation?

NHTSA opened 3 investigations into this model year; all are now closed.

Which Infiniti Q45 years should you avoid?

Based on complaint rates and open investigations, the Q45 years to avoid are 1991, 1994, 1992, 1990. The cleanest record among Q45 years belongs to 2006.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.