1991 Infiniti Q45 problems & reliability
34 owner complaints filed with NHTSA for the 1991 Infiniti Q45. Last verified Aug 8, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
2 complaints report injuries (3 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Equipment | 7 | 21% |
| Service Brakes, Hydraulic | 6 | 18% |
| Suspension | 5 | 15% |
| Electrical System | 4 | 12% |
| Engine and Engine Cooling | 4 | 12% |
| Power Train | 4 | 12% |
| Visibility | 4 | 12% |
| Air Bags | 2 | 6% |
| Fuel System, Gasoline | 2 | 6% |
| Latches/locks/linkages | 2 | 6% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 14 reported components →Complaints by incident year
What owners report
“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…”
Air Bags · filed May 29, 2004
“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”
Wheels · filed Sep 13, 2002
“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”
Engine and Engine Cooling · filed Dec 19, 2000
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- REAR STEREO SPEAKER FIRES
Engineering Analysis EA98015 · opened Jun 25, 1998 · closed Nov 18, 1998 · led to recall 98V284000
- PASSENGER COMPARTMENT FIRE
Preliminary Evaluation PE98007 · opened Feb 6, 1998 · closed Jun 25, 1998
- TAKATA SEAT BELT BUCKLE FAILURE
Engineering Analysis EA95007 · opened Mar 10, 1995 · closed Aug 2, 1995 · led to recall 95V103002
Technical service bulletins
30 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1991 Infiniti Q45. The 10 most recent:
REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-007H · Service Bulletin/Repair Instructions · issued Feb 27, 2023
WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB09-039J · Service Bulletin/Repair Instructions · issued Feb 27, 2023
WHEEL BEARING COLLISION DAMAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB10-067C · Service Bulletin/Repair Instructions · issued Feb 22, 2023
INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB16-006A · Service Bulletin/Repair Instructions · issued Mar 24, 2021
EXTERIOR CLEANING INFORMATION SERVICE INFORMATION When cleaning the exterior of an Infiniti vehicle, damage may occur when using a cleaner with too high of an alkaline concentration. - Always refer to the Appearance and…
ITB19-008 · Service Bulletin/Repair Instructions · issued Apr 2, 2019
PLASTIC INTERIOR TRIM PROTECTIVE COVERING REMOVAL SERVICE INFORMATION Vehicles are delivered with plastic interior trim protective covering on the front and rear seats, front and rear door panel finishers, steering…
ITB18-037 · Service Bulletin/Repair Instructions · issued Oct 24, 2018
TRANSMISSION & ENGINE AUTOMATED DATA COLLECTION AND DIAGNOSTIC REPORTING SERVICE INFORMATION To support proper diagnosis and to promote Fixed-Right-First-Time ? Infiniti may review CONSULT-III plus (CIII plus) data…
ITB18-034 · Service Bulletin/Repair Instructions · issued Oct 12, 2018
Infiniti USA Electronic Field Communication Subject: Retailed Vehicle Open Campaign Report Lists Updated The lists for each retailer?s Retailed Vehicle Open Campaign Report has been updated today in DBS. We made our…
Infiniti USA Ret · Service Bulletin/Repair Instructions · issued Oct 9, 2018
Infiniti USA Electronic Field Communication Subject: Takata Completion Objectives for Q3 INFINITI is continuing to ask its retailers to urgently help increase customer participation in the Takata recalls to help it…
Infiniti USA Tak · Service Bulletin/Repair Instructions · issued Oct 2, 2018
DBS Enhancement: Retailed Vehicle Open Campaign Report INFINITI announced the availability of a new DBS enhancement tool to the Service > Campaign screen: Retailed Vehicle Open Campaign Report on July 9, 2018, which…
IPSB18-218 Retai · Service Bulletin/Repair Instructions · issued Sep 28, 2018
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 1991 Infiniti Q45 in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1991 Infiniti Q45?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.