2010 Chevrolet Traverse Ignition Lock Cylinder

You shall insert the tumbler spring into each of the 4 spring pockets of the cylinder assembly, install the first tumbler in the slot over the spring, and the remaining tumblers for cuts 4, 6, and 8 following the key code and the same process, pressing the tumblers in place until they are secure, rotate the cylinder assembly, inspect for correct loading of the tumblers by inserting the key into the cylinder, insert the cylinder into the sleeve, and insert the key and function the lock 3 times to distribute the grease inside the sleeve.