GMC 2009 Sierra - Manual (Page 179)

StabiliTrak ® Indicator Light
If equipped, this warning
light should come on
briefly when the engine is
started.
If the warning light does not come on then, have it fixed
so it will be ready to warn you if there is a problem.
If it stays on, or comes on when you are driving, there
may be a problem with your StabiliTrak
® system
and your vehicle may need service. When this warning
light is on, the system is off and will not limit wheel
spin. Adjust your driving accordingly.
This light will also flash when the StabiliTrak ® system
is active.
If the StabiliTrak ® system warning light comes on and
stays on for an extended period of time when the system
is turned on, your vehicle needs service. See StabiliTrak
®
System on page 4-5 for more information.
Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
It also provides an indicator of how hard your vehicle is
working. During a majority of the operation, the gage
will read 210°F (100°C) or less. If you are pulling a load
or going up hills, it is normal for the temperature to
fluctuate and go over the 235°F (113°C) mark. If the
gage reaches the 260°F (125°C) mark, it indicates that
the cooling system is working beyond its capacity.
See Engine Overheating on page 5-26.
United States Canada
3-43