Wait To Start Light; Reduced Engine Power Light - GMC 2006 DURAMAX Manual

Wait to Start Light

For pickup models, this light shows that the system is
functioning properly and tells you when the engine is
ready to be started. For van models, an instrument panel
WAIT TO START indicator light shows that the system
is functioning properly and tells you when the engine is
ready to be started.
Your vehicle has a fast warm-up glow plug system. The
wait to start light will illuminate for a considerably shorter
time than most diesel engines due to the rapid heating of
the glow plug system.
For more information, see Starting the Diesel Engine
on page 2-2.
Your diesel engine has a
glow plug system to aid in
starting your vehicle.

Reduced Engine Power Light

(Van Models Only)
If the reduced engine
power light comes on
while you are driving, the
computer is indicating that
your vehicle has a problem.
You should take your
vehicle in for service soon.
3-7