Autostart (remote start via key fob). Use it all the time... Last week I drove from DC to KS with 2 kids and 2 dogs. Had to leave the truck unattended LOTS for human potty breaks and food purchases. Autostart the truck, go do what we need, and be back within the 10 or 15 minutes before the autostart shuts off (I honestly don't know the timeframe it runs for - we just hurry...). Tons of people walked by the truck with it running and Sadie sitting in the front seat - never an issue. Even the time we DIDN'T get out of the store before the truck shut off.... (We were late by seconds - the interior was still ice-cold when we got in).