Two problems related to transmission gear slipping have been reported for the 2001 Infiniti QX4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Infiniti QX4 based on all problems reported for the 2001 QX4.
Transmission slippage when transmission is shifting from 2nd to 3rd during cold weather during moderate acceleration.
Transmission slippage when transmission is shifting from 2nd to 3rd during cold weather during moderate acceleration. Known service bulletin, NHTSA #62304.