Diagnostic Aids
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
The DIC, if equipped, displays "TRANS HOT - IDLE ENGINE" when the TFT reaches 132°C (270°F). The TFT on the scan tool should rise steadily to a normal operating temperature, and then stabilize. Ask about the customer driving habits, trailer towing, etc. Trailer towing should occur in DRIVE (D). Ensure the engine cooling system is functioning normally.