GMC Sierra Denali 2009 Owner's Manual page 363

4. Allow the engine to idle (500 – 800 rpm) for at least
one minute. Slowly release the brake pedal.
5. Keep the engine running and press the Trip/Fuel
button or trip odometer reset stem until TRANS
TEMP (Transmission Temperature) displays on the
Driver Information Center (DIC).
6. Using the TRANS TEMP reading, determine and
perform the appropriate check procedure. If the
TRANS TEMP reading is not within the required
temperature ranges, allow the vehicle to cool,
or operate the vehicle until the appropriate
transmission fluid temperature is reached.
Cold Check Procedure
Use this procedure only as a reference to determine if
the transmission has enough fluid to be operated
safely until a hot check procedure can be made. The
hot check procedure is the most accurate method
to check the fluid level. Perform the hot check procedure
at the first opportunity. Use this cold check procedure
to check fluid level when the transmission temperature is
between 80°F and 90°F (27°C and 32°C).
See Engine Compartment Overview on page 5-14
for more information.
2. Flip the handle up and then pull out the dipstick
and wipe it with a clean rag or paper towel.
1. Locate the transmission
dipstick at the
rear of the engine
compartment, on the
passenger side of the
vehicle.
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