When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I may be mistaken but I think they're the internal security sensors. They'll set your truck alarm off if, say, you leave a kid in the truck and they move around.
Yes, I had that happen once. Was borrowing my FIL's '22, he wanted to stay in the truck so I locked it (I could see the truck through the window of the building) but I didn't set the alarm to perimeter only...he switched seats in the back seat and the alarm started going off.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.