Engine Coolant Temperature; Gauge - GMC 2011 Sierra Owner's Manual

Oil pressure can vary with engine
speed, outside temperature and
oil viscosity, but if readings are
outside the normal operating range,
the oil pressure light comes on.
See
for more information.
A reading outside the normal
operating range can be caused
by a dangerously low oil level or
some other problem causing low
oil pressure. Check the vehicle's
oil as soon as possible. See OIL
PRESSURE LOW STOP ENGINE
under
and
.
WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Lack of proper engine
oil maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule for changing engine oil.
If the vehicle has a diesel engine,
see the Duramax diesel supplement
for more information.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
Instruments and Controls
Engine Coolant
Temperature Gauge
5-17
Metric