Removal Procedure

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Remove the side door stepwell mat. Refer to MAT REPLACEMENT - STEPWELL .
Remove the bolts that retain the check assembly cover.
Remove the check assembly cover from the stepwell.

Fig 1: Removing Check Assembly Cover
Courtesy of GENERAL MOTORS CORP.
Remove the nuts (2) that retain the check assembly (1) to the sliding side door lower track (3).
Remove the check assembly (1) from the sliding side door lower track (3).

Fig 2: Removing Sliding Door Check Assembly
Courtesy of GENERAL MOTORS CORP.