Welcome to the Lexus How-To series, where owners can learn more about their vehicle's new features. This how-to tutorial includes how to replace a Smart Acce This process will apply to alot of the keyless entry Fords from these years. The principle for your Ford key will likely be similar if it is of a different y See how to replace the battery in your 2000 - 2012 Ford Focus key fob keyless entry remote.PART # 2S4T-15K601-AA - Order Here: .