14815B - SERVICE UPDATE (REVISED WARRANTY TRANSACTION INFORMATION). CERTAIN LIGHT DUTY VEHICLES BUILT WITH RPO C49 FIXED-WINDOW (NOT SLIDING), HEATED BACK GLASS MIGHT HAVE A STRUCTURALLY WEAKENED GLASS DUE TO AN INTERNAL FLAW (SPALL). IN THIS CONDITION, THE BACK GLASS COULD SHATTER WHEN THE DOOR IS CLOSED OR DURING NORMAL VEHICLE OPERATION. DEALERS ARE TO REPLACE THE REAR WINDOW.
