1. Open the trunk of the pickup truck, find a suitable location to install the lock, which should be installed at the edge or center of the trunk, and fix the lock on the trunk with a screwdriver or other tools.

2. If it is an electronic password lock, you need to set the password according to the steps in the manual, make sure to remember the password, test the function of the lock, close the trunk of the pickup truck, and use the key or enter the password to lock it.