GM Service Manual Online
For 1990-2009 cars only

Object Number: 830037  Size: A1

This indicator, in the left of the instrument panel, will come on when the glow plugs are on and the ignition key is in ON/RUN or START.

Wait until the indicator turns off before turning the ignition key to START.

When the temperature is below 32°F (0°C), you should wait no more than 10 seconds to start your vehicle. See Ignition Positions for more information.