Transmission failure.
The worst 1990 Infiniti Q45 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Transmission14
- Engine3
- Visibility3
- Brakes2
- Electrical2
- Steering2
- Fuel system1
- Lights1
- Suspension1
Specific symptoms reported on the 1990 Infiniti Q45
Recalls 1
Seat belts: front: buckle assembly
- What is wrong
- 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.
- Risk
- 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.
Recall number 95V103002 · Recall details
See all 1 recalls for the 1990 Infiniti Q45
Defect investigations
Takata seat belt buckle failure
There is no summary currently available
EA95007
Technical service bulletins for the 1990 Infiniti Q45 10
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Windshield cracking
- Removing foreign material from the window glass
- Wheel bearing collision damage
- Infiniti: SRS precautions during service
- Infiniti: tire pressure monitoring system (TPMS) warning light on/blinking
- Infiniti: vent control valve replacement. no applied vehicles affected: all models; no model years listed.
- Infiniti: electronic control unit damage CAN result from improper battery connection
- Air bag harness replacement
- 1997 QX4 wheel balance machine adapter kits
- Engine hard to start , hot or cold
1990 Infiniti Q45 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 4.5L 8‑cyl | RWD | 15 | 20 | 17 |
What 1990 Infiniti Q45 owners say
Most recent owner complaints, unedited.
Rack and pinion steering failure.
The consumer had to use excessive force to steer the vehicle. The dealer stated the power steering system was leaking fluid and needed to be serviced. The problem re-occurred, and then the dealer stated the rack and pinion needed to be replaced.
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.
Infiniti, the manufacturer, issued a recall campaign for 1991 and 1992 model q 45's. Mine is a 1990 model, which has all of the warning signs of the fire danger involved in the stereo speaker recall that was instituted, however, infiniti refuses to include the 1990 models. They admitted they have had reports of problems with the 1990 model q45 stereo speakers, but they continue to refuse to include that year in the recall. My concern is that the 1990 models are subject to the same fire danger and I don't particularly want my car to go up in flames due to a speaker/wiring failure that can be easily fixed by the manufacturer if included in their recall campaign.
No summary listed for above vehicle.
The ABS light came on due to a defective ABS brake line which leaked, causing the ABS fluid to become inoperative. Please provide further information and VIN#.
Rear brake lamp socket overheats causing short in system resulting in failure of all brake lamps.
The federal safety agency has received numerous complaints and service bullitens (according to the federal safety agency records accessable on the web) regarding the faulty design and frequent failure of this dangerous transmission. Why has the federal safety agency not investigated this transmission and recalled it?
Transmission is noisy upon engaging. Dealer was contacted, and recommended replacement due to internal problems. No warranty, repairwork being done. Provide further information.
Compare the 1990 Infiniti Q45
Other model years
1990199119921993199419951996199719981999200020012002200320042005
Questions about the 1990 Infiniti Q45
Is the 1990 Infiniti Q45 reliable?
Owners have filed 28 complaints about the 1990 Infiniti Q45, 4.0 times a typical Q45 model year.
What is the most common problem with the 1990 Infiniti Q45?
Transmission and drivetrain, with 14 complaints. Next is engine (3).
How many recalls does the 1990 Infiniti Q45 have?
1 recall, covering seat belts.
What gas mileage does the 1990 Infiniti Q45 get?
Official estimates for the 1990 Infiniti Q45 range from 17 mpg combined. The most efficient version (4.5L 8-cyl, RWD) gets 15 city and 20 highway.
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