2010 Chevrolet Colorado Crew Cab Owner's Manual - Page 119

Remote Keyless Entry (RKE) System Operation Vehicles with Remote Keyless Entry (RKE), transmitter functions work up to 30 feet (9 m) away from the vehicle. There are other conditions which can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 3‑4. UNLOCK: Press to unlock the driver door and turn on the interior lamps. The parking lamps may flash and the horn may sound. LOCK: Press to lock all the doors. The parking lamps may flash and the horn may sound. If a door is open or ajar when LOCK is pressed, the horn sounds several times to let you know the doors did not lock and the content theft‐deterrent system is not armed. Pressing LOCK again while the horn is sounding or within three seconds after the horn stops sounding, the doors lock but the content theft‐deterrent system does not arm until the opened door is closed. Different feedback modes can be programmed through the Driver Information Center (DIC). See "Remote Keyless Entry Feedback" under DIC Operation and Displays on page 4‑33. Press to make the horn sound and the headlamps and taillamps flash for up to 30 seconds. To turn them off wait for 30 seconds, or press L again, or start the vehicle. L (Panic): Press UNLOCK again within three seconds and all of the doors unlock. 3-5