Engine Coolant Temperature - GMC Yukon XL Denali Owner's Manual

5-14 Instruments and Controls
English
The oil pressure gauge shows the
engine oil pressure
in kPa (kilopascals) or psi (pounds
per square inch) when the engine is
running.
Oil pressure can vary with engine
speed, outside temperature and oil
viscosity, but readings above the
low pressure zone indicate the
normal operating range. When the
oil pressure reaches the low
pressure zone, the OIL
PRESSURE LOW STOP ENGINE
message will appear in the Driver
Information Center. See Engine Oil
Messages on page 5 38 and Engine
Oil on page 10 8 for more
information.
A reading in the low pressure zone
can be caused by a dangerously
low oil level or some other problem
causing low oil pressure.
Notice: Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine
oil low can also damage the
engine. The repairs would not be
covered by the vehicle warranty.
Check the oil level as soon as
possible. Add oil if required, but
if the oil level is within the
operating range and the oil
pressure is still low, have the
vehicle serviced. Always follow
the maintenance schedule for
changing engine oil.
For vehicles with a Hybrid, see the
Hybrid Supplement for more
information.
Engine Coolant
Temperature Gauge
Metric