C238x2 Replacement Complete with battery and circuit board. Set of 2. Lifetime warranty! Our fault? Get 100% refund! Easy set-up instructions, just message us your vehicle's year, make and model. Two self program, two working keys are needed. If you do not have two working keys, you can take go to a dealer or automotive locksmith to have them programmed. All vehicles 2010 and above are dealer program only. Fully Tested with battery included.