Before Driving Off-Road
• Have all necessary maintenance and service work completed.
• Fuel the vehicle, fill fluid levels, and check inflation pressure in all tires, including the spare, if equipped.
• Read all the information about four-wheel-drive vehicles in this manual.
• Make sure all underbody shields, if equipped, are properly attached.
• Know the local laws that apply to off-road driving.
To gain more ground clearance if needed, it may be necessary to remove the front fascia lower air dam.
Notice: Operating the vehicle for extended periods without the front fascia lower air dam installed can cause improper air flow to the engine. Re-attach the front fascia air dam after off-road driving.
See also:
Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If
the octane rating is less than 87, an audible knocking noise, commonly referred
to as spark knock, might be heard when ...
Delayed Entry Lighting
Delayed entry lighting illuminates the interior for a period of time after all the doors have been closed.
The ignition must be off for delayed entry lighting to work. Immediately after all the doors ...
Yukon Denali in the Market
If you have a boat, trailer or anything that needs to be towed, the GMC Yukon
Denali is a great way to travel. It's even better if you have a family. Yes, the
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