Remote Start - Many modern key fobs allow you to start your car remotely, which can be useful for warming up or cooling down the interior before you enter.
Panic Button - There's often a panic button that sounds the car's horn and flashes the lights, useful for emergencies.
Open Trunk - Some key fobs have a button specifically for popping open the trunk remotely, handy when your hands are full.
Windows Down - In some models, holding down the unlock button can lower the windows remotely.
Car Locator - Some key fobs have a feature that helps you locate your parked car by flashing the lights.
Memory Settings - If your car has memory settings for seats, mirrors, and other features, the key fob can often recall your preferred settings automatically.
Valet Mode - Some vehicles allow you to enable a valet mode through the key fob, restricting access to certain features like the trunk.
Automatic Parking Assistance - Advanced key fobs can assist in automatic parking maneuvers, helping you park your car in tight spaces.