A replacement 1-button 2-way remote for the Viper: 5701, 5301, 4204, 3203 and 5204. If your original is lost, damaged or no longer working, this is the same transmitter — it pairs to the system already fitted to your vehicle, so nothing else needs to change. Check it's the right one The FCC ID is printed on the back of your old fob or inside the battery compartment. If it reads EZSDEI7251, this is your remote. Programming This fob needs pairing to your system before it will work. Most people manage it themselves using the guide linked on this page. If you'd rather not, bring the vehicle to our Markham shop and we'll do it. Batteries Takes CR2016 x 2. Try a fresh set in your old fob first — a flat battery and a dead fob behave identically, and batteries cost a fraction of this. Ships free across Canada.
