Engine Coolant
The cooling system in the vehicle is filled with DEX-COOL® engine coolant. The coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first.
The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating on page 10‑18.
See also:
Adding Equipment to the Airbag-Equipped Vehicle
Q: Is there anything I might add to or change about the vehicle that could keep
the airbags from working properly?
A: Yes. If you add things that change the vehicle's frame, bumper system, heig ...
Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance.
However, if a customer wishes to write or e-mail GMC, the letter should be addressed to:
United States
GMC Customer Assistance ...
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
country is in a panic over gas prices ...