There is a driver seat belt reminder light on the instrument cluster.

When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their seat belt. Then the light stays on solid until the belt is buckled.
This cycle may continue several times if the driver remains or becomes unbuckled while the vehicle is moving.
If the driver seat belt is buckled, neither the light nor the chime comes on.
Passenger Seat Belt Reminder LightInput Shaft Seal Replacement Automatic Transmission Unit
Removal ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.Drain the transfer case fluid. Refer toTransfer Case Fluid Replacement.Remove the propeller shaft. Refer toPropeller Shaft Replacement.Remove the right wheel drive shaft. Refer toFront Wheel Drive Shaft Replaceme ...