Thank you so much! Have to replace it in the A.M., granddaugther taking driving test. All lights must work! Thanks again

2005 Vibe. Owners manual mentions nothing about this bulb. there are two of them and one is burnt out. Did a search on this forum and found part #168. What bulb do I ask for at an Auto parts dealer and how do I gain access to change it?Thanks for any and all help!