4WD GMC YUKON 2009 Get To Know Guide

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The Oil Life System calculates engine oil
life based on vehicle use and displays
CHANGE ENGINE OIL in the Driver
Information Center (DIC) when it’s nec-
essary to change your engine oil and
filter. The Oil Life System should be reset
to 100% only following an oil change.
Reset the Oil Life System using the DIC:
1. Turn on the ignition.
2. Press the (Vehicle Information)
button until the DIC displays OIL LIFE
REMAINING.
3. Press and hold the (Set/Reset)
button until 100% is displayed.
4. Turn off the ignition.
Reset the Oil Life System without the DIC:
1. Turn on the ignition, with the engine off.
2. Fully press and release the accelera-
tor pedal slowly three times within
five seconds.
3. If the CHANGE ENGINE OIL mes-
sage flashes, the system is reset;
otherwise, repeat the procedure.
4. Turn off the ignition.
See Section 5 of your Owner Manual.
Reset the Engine Oil Life
System
Refueling the Vehicle
To open the fuel door, press the center-
rear edge of the door and it will pop
open slightly. Pull the door to open it
fully.
When closing the fuel door, press the
rear edge of the door until it latches and
is flush with the side of the vehicle.
See Section 5 of your Owner Manual.
Maximizing Fuel Economy
Your driving behavior is a big contributor
to your vehicle’s fuel economy.
Modifying your driving habits will
improve your fuel mileage. Here are
several fuel-saving tips:
• Combine short trips to minimize cold
engine starts, which reduce fuel
economy.
• Avoid quick starts and stops.
Accelerate moderately and drive at a
steady speed.
• Anticipate traffic flow and brake mod-
erately or coast.
• Use the air conditioning and defrost
modes only when necessary.
• Minimize electrical accessory opera-
tion by turning off items such as the
rear defogger and heated seats when
they are not needed.
• Use the remote start feature sparing-
ly. This feature turns the engine on,
consuming fuel at idle.
• Do not warm up the engine by idling.
Even on the coldest days, driving will
help the engine warm up faster.
• Selecting the AUTO feature on 4WD
models will be less economical than
2WD.
• Unload unnecessary cargo to reduce
the amount of weight in the vehicle.
• Regularly check and maintain proper
tire pressure.
• Maintain your vehicle. Regular main-
tenance will keep your vehicle run-
ning cleaner and more efficiently.