The package includes:

DT-51190 Transmission Fluid Filling adapter for GM vehicles with 8L45 & 8L90 Transmission * 1;

Features:

This is a required tool to fill or add fluid to the GM vehicles with 8L45 & 8L90 Transmission,such as Chevrolet, GMC & Cadillac (2015+) and so on

Instructions:

Drive the vehicle until the transmission is at operating temperature.

Make SURE it is level.

With the transmission in Park and the engine idling, remove the Oil level check plug from bottom center of transmission pan.

When full, fluid should just trickle out of this hole.

1.) Remove the inner fill plug from transmission. Use a wrench to hold the outer nut to prevent draining all the fluid.

2.) Install the Transmission Fluid Fill Adapter.

3.) Fill transmission to correct fluid level. Add fluid in small increments and continually check until fluid is slowly dripping.

4.) Remove the Transmission Fluid Fill Adapter.

5.) Some leaking will occur this is normal and you should let this happen so that the proper level is attained.

6.) Re-install the inner fill plug in transmission.