Yes, they will work for seat heater switches. Seat heater switch bulb and rear vent window switch bulb share the same part number 84999-10310 with 14V 0.91W specs.
Mirror adjustment switch is not lighted for LC. It is lighted for LX.
I used CEC Industries #8111 Bulbs, 14 V, 0.91 W for the rear vent window and RSCA switches. It works but it is slightly longer than factory bulb.
REAR VENT L switch has old factory bulb. REAR VENT R and RSCA switches have #8111 bulb.