We had a flat on the 4th of July ours too is under the van we had to look in the book to find it . Thank Heavens my DH was along but it was stuck up there and took a lot of banging and a few choice words to get it down. If You have never tried taking it out, a good sunny day would be a good day for a test run! I have changed tires before but this one would not have happened if it had just been me.