The 1997 Infiniti Q45 has 4 recalls, the most serious involving a damaged diode in the alternator that can short out, melt the alternator's plastic housing, and ignite a fire in the engine compartment.
The remaining three recalls all trace back to the same underlying problem with the shift lock system. Under normal operation, removing the ignition key should only be possible when the transmission is in Park, but a fault in the shift lock control unit allows the key to be pulled out while the car is still in Drive or another gear. If a driver does this, walks away, and has not applied the parking brake, the vehicle can roll freely on any slope. The fix for this issue covers the same defect across multiple regulatory filings, so owners only need to address it once.