When the vehicle is started, if the transmitter battery is weak, the DIC may display NO REMOTE DETECTED or NO REMOTE KEY WAS DETECTED PLACE KEY IN TRANSMITTER POCKET THEN START YOUR VEHICLE. The REPLACE BATTERY IN REMOTE KEY message may also be displayed at this time.
To start the vehicle:

Replace the transmitter battery as soon as possible
Programming Transmitters to
the Vehicle
Battery Replacement#PIT5030E: Diagnostic Tip - Intermittent No Crank When Ignition Key Is Turned To The Crank Position - (May 2, 2013) Ignition System
Subject:Diagnostic Tip - Intermittent No Crank When Ignition Key Is Turned To The Crank PositionModels: 2010 - 2014 Buick LaCrosse, Regal2012 – 2014 Buick Verano (Without RPO BAH Or ATH)2013 – 2014 Buick Encore2013 – 2014 Chevrolet Trax (Canada only)2010 - 2014 Chevrolet Camaro, Equinox2011 - ...