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Hot Check Procedure
Note: Use this procedure to check the transmission fluid level when the TFT is between 160°F and 200°F (71°C and 93°C). The hot check procedure
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.
2.
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.
Note: Always check the fluid level at least twice. Consistent readings are important to maintaining proper fluid level. If inconsistent
readings are noted, inspect the transmission vent assembly to ensure it is clean and unclogged.
4.
Check both sides of the dipstick and read the lower level. Repeat the check procedure to verify the reading.
5.
Inspect the color of the fluid on the dipstick. The fluid should be Red or Dark Brown. If the fluid is very dark or Black and has a burnt
odor, see Fluid Condition Section of this Instruction Sheet.
6.
A safe operating fluid level is within the HOT crosshatch band on the dipstick. If the fluid level is not within the HOT band, and the TFT is
between 160°F and 200°F (71°C and 93°C), add or drain fluid as necessary to bring the level into the HOT band. If the fluid level is low,
add only enough fluid to bring the level into the HOT band. It does not take much fluid, generally less than one pint (0.5L). Do not overfill.
Also, if the fluid level is low, inspect the transmission for leaks.
7.
If the fluid level is in the acceptable range, push the dipstick back in all the way in place.
Transmission Adaptive Functions
The Supermatic 6L80 RWD transmission utilizes a line pressure control system during upshifts to compensate for new transmission build variation
and the normal wear of transmission components. New transmission to transmission variation and normal wear of the apply components within
the transmission over time can cause shift time (the time required to apply a clutch) to be longer or shorter than desired. In order to compensate
for these changes, the transmission control module (TCM) adjusts the pressure commands to the various pressure control (PC) solenoids, to
maintain the originally calibrated shift timing. The automatic adjusting process is referred to as "adaptive learning" and it is used to ensure
consistent shift feel plus increase transmission durability. The TCM monitors the A/T input speed sensor (ISS) and the A/T output speed sensor
(OSS) during commanded shifts to determine if a shift is occurring too fast (harsh) or too slow (soft) and adjusts the corresponding PC solenoid
signal to maintain the set shift feel.
If transmission adapts are needed to be reset, follow General Motors Service Procedures for a 2015 Chevrolet Silverado with a 6L80 transmission.
Supermatic 6L80 Transmission Controller Kit for LS Crate Engines
ALL INFORMATION WITHIN ABOVE BORDER
Date
TO BE PRINTED EXACTLY AS SHOWN ON 8.5
x 11 WHITE 16 POUND NON-BOND
RECYCLABLE PAPER. PRINT ON BOTH
28AP22
SIDES, EXCLUDING TEMPLATES. TO BE
UNITIZED IN ACCORDANCE WITH GMCCA
04MY23
SPECIFICATIONS.
Revision
Prev. Revisions Archived
Revision – Blake Nye
Revision – Blake Nye
REV 04MY23
Auth
DR
Title Installation Instructions
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Supermatic 6L80 Transmission Controller Kit for LS Crate Engines
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