CHEVROLET 2009 Suburban - Manual (Page 424)

5. If the fluid level is below the COLD check band, add
only enough fluid as necessary to bring the level
into the COLD band. It does not take much fluid,
generally less than one pint (0.5L). Do not overfill.
6. Perform a hot check at the first opportunity after
the transmission reaches a normal operating
temperature between 160°F to 200°F (71°C to 93°C).
7. If the fluid level is in the acceptable range, push the
dipstick back in all the way, then flip the handle
down to lock the dipstick in place.
Hot Check Procedure
Use this procedure to check the transmission fluid level
when the transmission fluid temperature is between
160°F and 200°F (71°C and 93°C).
The hot check is the most accurate method to check the
fluid level. The hot check should be performed at the first
opportunity in order to verify the cold check. The fluid
level rises as fluid temperature increases, so it is
important to ensure the transmission temperature is
within range.
1. Locate the transmission
dipstick at the
rear of the engine
compartment, on the
passenger side of the
vehicle.
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.
3. Install the dipstick by pushing it back in all the way,
wait three seconds, and then pull it back out again.
4. Check both sides of the dipstick and read the lower
level. Repeat the check procedure to verify the
reading.
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