Pre-programmed at the factory with exact OE protocol, so it's ready to be installed and OE-relearned out of the box. Designed and manufactured to meet or exceed OE performance in compliance with all SAE2657 specifications. Undergoes extensive testing - including operational temperature, thermal shock, extreme temperature, humidity, frost, proof pressure, rapid deflation, contamination, salt fog, drop, centrifugal force vehicle speed, mechanical vibration tests—to ensure durability.