Hummer 2004 H2 - Manual (Page 245)

3. Guide the pins on the side step brackets into the
holes in the vehicle’s rocker panel protector
brackets. If you have difficulty doing this, it may
help to have someone hold up the step while you
guide the pins into the holes.
You will be guiding three pins into the holes with
the fourth hole in the vehicle’s rocker panel protector
brackets empty until the next step.
4. Thread the knob through the remaining hole — first
into the rocker panel protector and then into the
threaded hole in the assist step bracket.
If you thread the knob into the step and then the
rocker panel protector, you may think the step
is secure. It will fall out this way. To be sure the step
is secure, try moving the step left and right after
installing the knob.
Notice: Threading the knob into the step and then
into the rocker panel will not secure the assist
step. The step could fall off the vehicle and be
damaged. Always thread the knob through the
rocker panel first.
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