Glow Plug Light

Sep 16, 2008 5 Replies
07 Chevy Silverado Classic Diesel

Does your dash glow plug light on the dash light up for a few seconds every start regardless of outside temperature?


Yep, Normal behavior. The computer looks at the outside temperature and decides if you need the glow plugs or not. While it does that it turns the light on.

Does it light during the bulb test (Key on, engine off)? If not either the bulb is blown or there is a problem in the circuit.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required