2012 Toyota Prius Owners Manual - Page 724

4-3. Do-it-yourself maintenance STEP 2 Partly remove the fender liner. STEP 3 Unplug the connector pushing the lock release. while STEP 4 Turn the bulb base counterclockwise. STEP 5 Install a new bulb. Align the 3 tabs on the light bulb with the mounting, and insert. 414