Thermal camouflage are materials and design considerations that hinder infrared detection.
— Battlelog description
Thermal Camo is a ground vehicle specialization featured in Battlefield 3, the counterpart to Stealth for air vehicles. When equipped, a vehicle's thermal signature is reduced when viewing through Thermal Optics. The vehicle also becomes harder to track using guided missiles/shells, and if spotted, the mark will disappear sooner.
Vehicles using Thermal Camo have their "active spotted time" reduced by 66% and their "passive spotted time" reduced by 99%. Weapon lock takes 60% longer to achieve.
Thermal Camo does not completely prevent heatseeking weaponry from working—such vehicles are still vulnerable to attack if exposed for long enough.
Thermal Camo is a vehicle specialization featured in Battlefield 4. The Specialization reduces the vehicle's thermal signature as seen through the Thermal Optics specialization as well as other infrared devices in a manner similar to that of the Battlefield 3 counterpart. While their heat signature is reduced, vehicles can still be attacked with heatseeking weaponry though it may take the operator more time to acquire a successful lock on the vehicle.