Tire Pressure Light; Malfunction Indicator Lamp - GMC Yukon XL Denali 2005 Owner's Manual

Tire Pressure Light

A CHECK TIRE PRESSURE DIC message will
accompany the light.
This light will also come on for a bulb check when the
vehicle is started.
See Tire Pressure Monitor System on page 5-63 for
more information.
For more information on your tires, see Tires on
page 5-56.
If your vehicle is equipped
with the Tire Pressure
Monitor system, this light
will come on if the
system detects low tire
pressure.

Malfunction Indicator Lamp

Check Engine Light
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on to
indicate that there is a problem and service is required.
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition, and emission
control systems.
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