Using your OLM Light Tunnel Turn Signal Indicator is super easy. Whenever you want to turn or change lanes, just use your vehicle's regular turn - signal lever as you normally would. As for installation, make sure your vehicle has factory OEM or OE - style turn signal housings. First, unscrew the turn signal housings. Then, carefully remove the plastic covers and break off the black plastic piece that's there. Next, install the OLM indicator in its place. Finally, put the covers and housings back on. When it comes to maintenance, keep the indicators clean. You can use a soft cloth and a mild cleaning solution to wipe them down from time to time. If you notice any damage, like cracks or loose parts, it's a good idea to check and replace them right away. And always double - check that the connections are secure so the indicators work properly.