The liftgate open warning light on a Jeep Grand Cherokee is a reminder to the driver that the liftgate or rear hatch of the vehicle is still open.
The liftgate open warning light 
will illuminate in the instrument cluster of your Grand Cherokee when the liftgate is not securely closed. To turn off the warning light, simply close the liftgate or rear hatch until it is fully latched.
If the light remains on after the liftgate is closed, it may indicate a malfunction in the liftgate’s latch mechanism or a problem with the liftgate’s sensor, and it is best to have it inspected by a professional.
Warning light won’t turn off
Here are some steps you can take to troubleshoot the issue:
Check the liftgate
Make sure that the liftgate is properly closed and latched. Check for any visible damage or debris that may be preventing the liftgate from closing properly.
Inspect the liftgate sensor
The liftgate sensor is typically located at the base of the liftgate and is responsible for sending a signal to the vehicle’s computer when the liftgate is open or closed. If the sensor or its wiring is damaged, it may not be able to send a proper signal.
Run a diagnostic scan
If the above steps do not resolve the issue, the problem may be with the vehicle’s computer. A diagnostic scan with an OBDII scanner can reveal any error codes or issues that may be causing the liftgate warning light to stay on.
If the problem persists after trying these steps, it is best to have your Jeep Grand Cherokee inspected by a professional mechanic.
