1.Product components The product includes a SKS key case and key blade, mainly consisting of four buttons, namely Unclock, Lock, Remote Start, and Panic Alarm.It does not contain any internal electronic components 2.Service We provide good after-sales support. Please test the function of each button after replacing the key fob cover. 3.features Designed and produced according to the original adaptation model, with high accuracy; Simply replace the casing, saving time and effort. 4.Battery Replacement General Steps 1.Open the battery compartment: Look for a small slot or groove along the edge of the key or a small panel on the key's backside. Use a small flathead screwdriver or a coin to gently pry open the battery compartment. 2.Remove the old battery: Use your fingers or small tools to push the battery out of the housing. 3.Insert the new battery: Take the new battery and ensure that it is facing the correct way. Align the positive (+) and negative (-) ends of the battery with the corresponding markings or contacts in the compartment. Press the battery firmly into place. 4.Close the battery compartment: Align the cover of the battery compartment with the key and press it back into position . If you encounter any difficulties or are unsure about the process, consult your vehicle's owner's manual or seek assistance from a professional.