Chevrolet 2006 Cobalt Owner's Manual page 141

Up-Shift Light
Your vehicle may have an up-shift light. When this light
comes on, you should shift to the next higher gear if
weather, road, and traffic conditions allow you to.
United States Only
See Manual Transaxle Operation on page 2-25 for more
information.
This light is located in your
instrument panel cluster to
the left of the tachometer.
Brake System Warning Light
Your vehicle's hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop you. For good braking, though,
you need both parts working well.
If the warning light comes on, there is a brake problem.
Have your brake system inspected right away.
United States
This light should come on briefly when you turn the
ignition key to RUN. If it does not come on then, have it
fixed so it will be ready to warn you if there is a problem.
Canada
3-29