2003 Honda Civic Keyless Entry Remote Control Car Key Fob for NHVWB1U523 or NHVWB1U521 Warranty: 180 Day Replacement Guarantee Self-programming instructions are included with your purchase. Support: Your purchase gives you 100% free e-mail and phone technical support from our expert staff. This remote replaces OE Part#: 72147-S5A-A01 | FCC ID#: NHVWB1U523 or NHVWB1U521 This Product will function as the original remote for your vehicle