Looks like the 1LE guys are having a similar issue.
http://www.camaro5.com/forums/showthread.php?t=390124
From the thread:
Quote:
Tire Pop Noise in Cold Temperatures
The 2012-2013 Camaro ZL1 and 2013 Camaro SS with RPO 1LE feature high performance tires that may exhibit a single audible "pop" or "snap" noise immediately after the vehicle is put into motion. This noise is typically noticed first thing in the morning after the vehicle has been stationary overnight or for an extended period of time and is more pronounced in lower ambient temperatures. The noise sounds similar to a brake pad that has temporarily stuck to a rotor due to vehicle inactivity. After the initial vehicle movement, the noise can no longer be duplicated until the car remains stationary again for an extended period of time.
This condition is a characteristic of the vehicle’s high performance tires. Due to the tires’ soft rubber compound, they have a natural tendency to stick to the pavement. When the vehicle is moved, this pop noise is the sound of the tire releasing from the pavement. Do not make any repairs. This is a normal characteristic of the high performance tires.
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