Removal Procedure

Raise the vehicle to a suitable height.
Remove the front section of the assist step extension. Refer to ASSIST STEP PLATE REPLACEMENT .
Remove the screws from the left rear outer edge of the assist step extension.
Lift upward on the assist step extension until fully released from the retainer.

Fig 1: Removing Screws From Left Rear Outer Edge Of Assist Step Extension
Courtesy of GENERAL MOTORS CORP.
Remove the screws from the right rear inner and outer wheel well.
Open the sliding door to expose the screw.
Lift upward on the assist step extension until fully released from the retainer.

Fig 2: Removing Screws From Right Rear Inner And Outer Wheel Well
Courtesy of GENERAL MOTORS CORP.
Remove the rear section of the assist step extension.

Fig 3: Removing Rear Section Of Assist Step Extension
Courtesy of GENERAL MOTORS CORP.