1990 Infiniti Q45 Problems

Above Average Complaints

Real NHTSA owner complaints for the 1990 Infiniti Q45.

< older1991
Complaints
33
Crashes
1
Fires
0
Injuries
0
Fatalities
Recalls
0

Worst 1990 Infiniti Q45 Problems

Top 3 most-reported issues with average mileage at failure.

#18 complaints

Automatic Transmission

Avg mileage:40 mi
#23 complaints

Engine And Engine Cooling:Engine

#33 complaints

Transmission / Drivetrain

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All Problems by Category

Every NHTSA complaint category for the 1990 Infiniti Q45.

Automatic Transmission
8
complaints
Crashes
Fires
Avg Miles
40
Engine And Engine Cooling:Engine
3
complaints
Crashes
Fires
Avg Miles
Transmission / Drivetrain
3
complaints
Crashes
Fires
Avg Miles
Manual Transmission
2
complaints
Crashes
Fires
Avg Miles
Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip
2
complaints
Crashes
Fires
Avg Miles
Steering:Rack And Pinion
2
complaints
Crashes
Fires
Avg Miles
Side/Rear Glass
2
complaints
Crashes
Fires
Avg Miles
Electrical System:Ignition
1
complaints
Crashes
Fires
Avg Miles
Wiring & Fuses
1
complaints
Crashes
Fires
Avg Miles
Equipment:Electrical:Radio/Tape Deck/Cd Etc.
1
complaints
Crashes
Fires
Avg Miles
Exterior Lighting:Brake Lights
1
complaints
Crashes
Fires
Avg Miles
Gasoline Fuel System
1
complaints
Crashes
Fires
Avg Miles
Power Train:Automatic Transmission:Cooling Unit And Lines
1
complaints
Crashes
Fires
Avg Miles
Service Brakes, Hydraulic:Foundation Components:Hoses, Lines/Piping, And Fittings
1
complaints
Crashes
Fires
Avg Miles
Steering:Hydraulic Power Assist System
1
complaints
Crashes
Fires
Avg Miles
Suspension:Front
1
complaints
Crashes
1
Fires
Avg Miles
Visibility:Defroster/Defogger/Hvac System
1
complaints
Crashes
Fires
Avg Miles
Visibility:Windshield Wiper/Washer
1
complaints
Crashes
Fires
Avg Miles

Search Owner Complaints

Read what owners actually reported to NHTSA for the 1990 Infiniti Q45. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Other Infiniti Q45 Years

1990 Infiniti Q45 — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 1990 Infiniti Q45 reliable?
Verdict: Above Average Complaints. The 1990 Infiniti Q45 has 33 NHTSA complaints, 1 crash-related, and 0 recall campaigns. The most common issue is Automatic Transmission with 8 complaints. Source: NHTSA via VinItel.
What are common problems with the 1990 Infiniti Q45?
Top reported problems: Automatic Transmission (8 complaints, avg 40 mi); Engine And Engine Cooling:Engine (3 complaints); Transmission / Drivetrain (3 complaints). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 1990 Infiniti Q45?
The weighted average mileage at time of complaint is about 40 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 1990 Infiniti Q45?
NHTSA complaints for the 1990 Infiniti Q45 include 1 crash-related reports, 0 fire reports, 0 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 1990 Infiniti Q45 have any recalls?
No NHTSA recall campaigns have been issued for the 1990 Infiniti Q45 as of the latest data sync. Verify by VIN for the most current status — new recalls can be issued years after a model year ships.
Should I buy a 1990 Infiniti Q45?
Slightly worse than average. Most owners are fine; problem clusters are concentrated around specific components. Check the issues table below and match against the specific car's mileage.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Infiniti Q45 reliability report with year-by-year comparison and generation analysis.

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