Conditions for Running

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2003 Hummer H2, 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 GMC Sierra, and 2003 GMC Cab & Chassis Sierra. However, it is still accessible from the selected car via links, so may be relevant.

The start-up Engine Coolant Temperature (ECT) is less than 122°F (50°C).
The start-up Intake Air Temperature (IAT) is less than 122°F (50°C).
The difference between the IAT and the ECT is less than 14°F (8°C).
The battery voltage is between 11-18 volts.