I have an 06 base Vibe. My license plate bulbs burned out. I used my map light bulbs as I needed license plate illumination right now! Anyway, later I got bulbs and put them in my map light - no light. The map light previously did work, I turned them on to make sure the bulbs were good before I put them in the license light sockets. So, I tested the bulbs with jumpers at the battery - bulbs work. Hmmm. I took off the rear view mirror & unplugged the power wire. I tested the voltage in the wire & was only getting 7.5 volts! Hmmm. I turned on the car and retested - getting 8.5v now! I shut off the car, disconnected the battery for 30 minutes and retested - same results. I can find no blown fuses. Everything else is working fine. The map light was working just fine, now, IDK??? Any ideas? This is weird... Maybe I'll put the other bulbs back in and see if they work in there? Why 7 & 8 volts??? I really like Vibes. My daughter needed a good car so I sold her my 05, so I just HAD TO FIND another one!... Here's a good story. Had a ski boat with a nice Volvo Penta stern drive. Put it away in the fall, got it out in the spring, pushed the throttle forward and the boat went backwards! I ended up taking the stern drive apart and flipped the reverse ring over and then all was normal again! Is that crazy or what?!?!