Ram 2021 1500 Classic truck

User Manual - Page 99

For RAM 2021 1500 CLASSIC.

PDF File Manual, 376 pages, Download pdf file

RAM 2021 1500 CLASSIC photo
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GETTING TO KNOW YOUR INSTRUMENT PANEL 97
PREMIUM INSTRUMENT CLUSTER
D
ESCRIPTIONS
1. Tachometer
Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Voltmeter
When the engine is running, the gauge
indicates the electrical system voltage.
The pointer should stay within the normal
range if the battery is charged. If the
pointer moves to either extreme left or
right and remains there during normal
driving, the electrical system should be
serviced.
NOTE:
The voltmeter may show a gauge fluctuation at
various engine temperatures. This cycling oper-
ation is caused by the post-heat cycle of the
intake manifold heater system. The number of
cycles and the length of the cycling operation is
controlled by the engine control module.
Post-heat operation can run for several
minutes, and then the electrical system and
voltmeter needle will stabilize.
3. Oil Pressure Gauge
The pointer should always indicate some
oil pressure when the engine is running.
A continuous high or low reading under
normal driving conditions may indicate a
lubrication system malfunction. Imme-
diate service should be obtained from an
authorized dealer.
4. Speedometer
Indicates vehicle speed.
5. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within
the normal range indicates that the
engine cooling system is operating satis-
factorily.
The pointer will likely indicate a higher
temperature when driving in hot weather,
up mountain grades, or when towing a
trailer. It should not be allowed to exceed
the upper limits of the normal operating
range.
6. Instrument Cluster Display
When the appropriate conditions exist,
this display shows the instrument cluster
display messages Ú page 98.
WARNING!
A hot engine cooling system is dangerous.
You or others could be badly burned by steam
or boiling coolant. It is recommended to call
an authorized dealer for service if your
vehicle overheats Ú page 305.
CAUTION!
Driving with a hot engine cooling system
could damage your vehicle. If the
temperature gauge reads “H,” pull over and
stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops
back into the normal range. If the pointer
remains on the “H,” turn the engine off
immediately and call an authorized dealer for
service.
3
21_DS_OM_EN_USC_t.book Page 97
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