Check the play of the release bearing by spinning it by hand. If there is excessive play or noise, replace the release bearing.

NOTE: The release bearing is packed with grease. Do not wash it in solvent.
HFL Menus
The ignition switch must be in ACCESSORY
or ON
to use HFL.
To use HFL, you must first pair your Bluetooth-compatible cell phone to the
system while the vehicle is parked.
Phone Setup
...
Controls
This chapter explains how to operate the various controls necessary for
driving. ...
Tailgate Lock Cylinder Replacement
For Some Models
NOTE: Put on gloves to protect your hands.
Remove the tailgate lower trim panal.
Disconnect the tailgate cylinder rod (A).
NOTE: Check for damaged or stress-wh ...