GMC Sierra Denali 2015 Owner's Manual page 122

GMC Sierra Denali Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299750) - 2015 - crc - 11/12/13
5-14 Instruments and Controls
English, Standard Theme Shown
This gauge measures the
temperature of the vehicle's engine
coolant.
While driving under normal
operating conditions, if the needle
moves into the red warning area,
the engine is too hot. Pull off the
road, stop the vehicle, and turn off
the engine as soon as possible.
Transmission
Temperature Gauge
Metric, Standard Theme Shown
Black plate (14,1)
English, Standard Theme Shown
This gauge appears when the
vehicle is in tow/haul mode and
shows the transmission fluid
temperature. If the gauge is reading
in the red area and/or a message
appears in the Driver Information
Center (DIC), the vehicle must be
stopped and the cause checked.
One possible cause is a low fluid
level in the transmission.
See Transmission Messages on
page 5-38.