When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Do you have a 2nd fob to try? Maybe the lock button is bad on the fob? Presumably, your 2nd fob isn't in the car; don't think it would let you lock it, if that were the case.