Fully tested complete remote with a battery installed Replaces CWTWB1U313, CWTWB1U343, CWTWB1U311 DIY step by step programming instructions included KeylessOption warranty card Included with each purchase included This is a replacement part to match the original in form and function Replacement keyless entry remote with battery and electronics installed. Easy to follow step by step DIY programming instructions are included with your purchase. Please enter your year make model into the parts finder to verify this item is compatible.