Using your OLM V3 F1 Rear Brake Light Kit is easy. First, decide if you want to use the plug - n - play harness. If you do, it'll make the installation much faster. Connect the harness as follows: the black wire to the black wire on the F1 lamp for the ground, the red wire to the blue wire on the F1 - style lamp for parking/running light, and the yellow wire to the red wire on the F1 - style lamp for the brake light. Once installed, you can switch between the two modes from your driver's seat. When you press the brake pedal, in one mode, the light will blink 15 times, and in the other, it'll work like a normal brake light. As for maintenance, keep the lights clean by using a soft cloth and a mild cleaner. Check the connections regularly to make sure they're secure. If you ever want to return your vehicle to its stock setup, just remove the kit with the help of the plug - n - play harness. Remember, always follow the vehicle's safety guidelines while using and maintaining this product.