How To Add Coolant To The Coolant Surge Tank - GMC Yukon Denali 2003 Owner's Manual

Notice: Engine damage from running your engine
without coolant isn't covered by your warranty.
See "Overheated Engine Protection Operating
Mode" in the Index for information on driving to a
safe place in an emergency.
Notice: When adding coolant, it is important that
you use only DEX-COOL
If coolant other than DEX-COOL
the system, premature engine, heater core or
radiator corrosion may result. In addition, the engine
coolant will require change sooner — at 30,000 miles
(50 000 km) or 24 months, whichever occurs first.
Damage caused by the use of coolant other
®
than DEX-COOL is not covered by your new vehicle
warranty.
®
(silicate-free) coolant.
®
is added to
How to Add Coolant to the Coolant
Surge Tank
If you haven't found a problem yet, check to see if
coolant is visible in the surge tank. If coolant is visible
but the coolant level isn't at or above the FULL
COLD mark, add a 50/50 mixture of clean, drinkable
®
water and DEX-COOL
surge tank, but be sure the cooling system, including
the coolant surge tank pressure cap, is cool before you
do it. See Engine Coolant on page 5-23 for more
information.
coolant at the coolant
5-31