Over a year after buying a great '02 Tahoe LT, I came to a startling conclusion. I've always used the remote to unlock the doors and disarm the factory "security system". Recently, I was going on a fishing trip and thought I'd better bring a spare key in case I dropped my remote in the lake. Much to my surprise, the keys all worked in the ignition but not in the doors. This sucks. If the battery ever died, how would I get into my truck other than calling AAA? Even if they got me into the truck, would it even start with the security system not disarmed? It's the factory system, not aftermarket. What would be the least expensive way to deal with this? thanks in advance!