GMC 2007 Yukon XL, Owner'S Manual

Page: 378 / 630

When you are back on roads, though, be sure to
replace the air dam.
Notice: Operating your vehicle for extended
periods without the front fascia lower air dam
installed can cause improper air flow to the
engine. Always be sure to replace the front
fascia air dam when you are finished off-road
driving.
To reinstall the lower air dam do the following:
1. Line up the snap features and push the
air dam rearward to engage the snaps.
2. Install the two outboard bolts.
Before You Go Off-Roading
There are some things to do before you go out.
For example, be sure to have all necessary
maintenance and service work done. Check to
make sure all underbody shields, if the vehicle has
them, are properly attached. Be sure you read
all the information about your four-wheel-drive or
all-wheel-drive vehicle in this manual. Is there
enough fuel? Is the spare tire fully inflated? Are the
fluid levels up where they should be? What are
the local laws that apply to off-roading where you
will be driving? If you do not know, you should
check with law enforcement people in the
area. Will you be on someone’s private land?
If so, be sure to get the necessary permission.
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