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WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Engine Coolant Temperature (ECT) is less than 122°F (50°C).
Intake Air Temperature (IAT) is less than 122°F (50°C).
Difference between IAT and ECT is less than 14°F (8°C).
Battery voltage is 11-18 volts.