The RKE transmitter is used to remotely lock and unlock the doors from up to 60 m (195 feet) away from the vehicle.
Press to unlock the
driver door. Press again
within five seconds to
unlock all remaining
doors.
Press to lock all doors.
Lock and unlock feedback can be personalized.
Press and hold for
approximately one second to
open the trunk.
Press and release to locate
the vehicle.
Press and hold for more than
two seconds to sound
the panic alarm.
Press again to cancel the
panic alarm.
See Keys and Remote Keyless Entry (RKE) System Operation.
Chevrolet Cobalt Owners Manual. Gasoline Octane
If the vehicle has the 2.2L L4 engine (VIN Code 5),
use regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than
87, an audible knocking noise, commonly referred to
as spark knock, might be heard when driving. If this
occurs, use a gasoline rated ...