One problem related to power assist brake vacuum has been reported for the 1998 Infiniti Q45. The most recently reported issues are listed below.
Brake system fails to adequately stop vehicle. Lso, vehicle will intermittently surge while brakes are being applied. Dealership has examined vehicle, but cannot find a remedy for the problem. Consumer feels this could be related to brake booster failure.
| Brake Foundation Components problems | |
| Power Assist Brake Vacuum problems |