Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

The PCM does not illuminate the malfunction indicator lamp (MIL).
TRANS HOT-IDLE ENGINE message displayed on the driver information center (DIC)
The PCM freezes transmission adaptive functions.
The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM stores this information as Freeze Frame Records.
The PCM stores DTC P0218 in PCM history.