Overdrive/Override (OD/OR) Switch (A/T)
OD/OR switch is used on Grand Cherokee. PCM controls 3-4 O/D up-shift and down-shift through OD solenoid, located on transmission. OD/OR switch is a push-button switch, located on gear shift lever. It is used to override PCM control of OD solenoid and keep transmission in a lower gear. An indicator light will come on when OD/OR switch is open and PCM OD control is not allowed.