Diagnostic Aids

WARNING: This page is about a different car, the 2009 GMC Yukon and 2009 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

The DIC, if equipped, will display TRANS HOT - IDLE ENGINE when the transmission fluid temperature reaches 132°C (270°F).
Ask the customer about possible overloading, exceeding the trailer towing limit, or towing in overdrive.
Refer to Symptoms - Automatic Transmission .