Express 1500 RWD V8-5.3L (2008)
10. Connect the transmission harness 20-way connector to the transmission pass-through connector.
Align the arrows on each half of the connector and insert straight down.
11. Install the transmission oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement (See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Removal and Replacement) .
12. Lower the vehicle.
13. Fill the transmission to the proper level with DEXRON(R) VI transmission fluid. Refer to Transmission Fluid Check (See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/4L60-E/4L65-E/4L70-E -
Automatic Transmission/Transmission Fluid Check) .
Important: It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to
relearn TAP values. Transmission performance may be affected as new TAP values are learned.
14. Reset the TAP values. Refer to Transmission Adaptive Functions (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Description and Operation/4L60-E/4L65-E/4L70-E - Automatic Transmission/Transmission Adaptive Functions) .
