GMC 2005 Sierra 1500 Pickup, Owner'S Manual, Page: 539 / 574

At the First 100, 1,000 and 6,000
Miles (160, 1 600 and 10 000km)
Check dual wheel nut torque. For proper torque, see
Capacities and Specifications on page 5-130.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See Engine Oil (Gasoline Engine) on
page 5-20 for further details.
Notice: It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL
®
coolant mixture if necessary. See Engine
Coolant on page 5-35 for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield
washer tank and add the proper fluid if necessary.
At Least Once a Month
Tire Inflation Check
Visually inspect your tires and make sure tires are
inflated to the correct pressures. Do not forget to check
your spare tire. See Tires on page 5-72 for further
details. Check to make sure the spare tire is stored
securely. Push, pull and then try to turn the spare tire.
If it moves, tighten it. See Changing a Flat Tire on
page 5-92.
6-11