Includes step-by-step installation video Contains a detailed instructional video (via the link on the product packaging) demonstrating the battery replacement process.Avoid a Service Appointment for Battery ReplacementRemote reprogramming is not required and Battery replacement is simple.IMPORTANT Compatibility InfoTESTED AND WORKS IN THE FOLLOWING REMOTES - Scion FR-S 2014-2016 , Scion iQ 2014-2015 , Scion tC 2014-2016 , Scion xB 2013-2015 , Scion xD 2014 , Sequoia 2019 , Tacoma 2016-2021 , Tundra 2018-2019 , Corolla 2014-2019 , 86 2017-2019 , Rav4 2013-2018 , Highlander 2014-2019 , Prius C 2012-2016Keyless entry remote fob not includedORIGINAL CR2016 OEM Battery as provided by Manufacturer in 2013-2021 remote head key fobs with FCC IDs: HYQ12BDM HYQ12BEL HYQ12BDM GQ4-52T (with remote opening tool) Bundle of One (1) CR2016 Remote Fob Battery and Opening/Pry Tool.Don't worryIncludes dual-purpose opening tool to help open the remote control (without scratching or damaging the remote control case) and remove the battery. Battery replacement is recommended before or after seeing the "Key Battery Needs Replacing" or Low Key Fob Battery message on the car dashboard (if applicable) or if your remote range is reduced and/or works intermittently.