One problem related to turn signal switch has been reported for the 1999 Jeep Grand Cherokee. The most recently reported issues are listed below.
For 7 to 10 miles when applying brakes there is jerking and pulsation, dealer stated that front brake rotors were warped. Consumer states keyless remote works intermittently. The battery failed, the head lights come on by themselves when it was in auto setting and the parking lights also come on at times due to multifunction switch failure.