Malfunction Indicator Lamp - Chevrolet 2007 Silverado 1500 Pickup Owner's Manual

If the transmission continues to operate above
265°F (130°C), contact your nearest dealer or the
GM Roadside Assistance Center. See Roadside
Assistance Program on page 640.
Notice: If you drive your vehicle with the
transmission temperature gage above
normal operating range, you can damage the
transmission. This could lead to costly repairs
that would not be covered by your warranty. Do
not drive your vehicle while the transmission
temperature gage reading is above normal. See
your dealer for service.
The following situations can cause the
transmission to operate at higher temperatures:
•
Towing a trailer
•
Hot outside air temperatures
•
Hauling a large or heavy load
•
Low transmission fluid level
•
High transmission fluid level
•
Restricted air flow to the radiator and the
auxiliary transmission oil cooler, if equipped.
A temporary solution to reduce hotter
transmission operating temperatures may
be to let the transmission cool down.
256
If the transmission is operated at higher
temperatures on a frequent basis, see Scheduled
Maintenance (Gasoline Engine) on page 615 for the
proper transmission maintenance intervals.

Malfunction Indicator Lamp

Check Engine Light
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on to
indicate that there is a problem and service is
required. Malfunctions often will be indicated by the
system before any problem is apparent. This may
prevent more serious damage to your vehicle. This
system is also designed to assist your service
technician in correctly diagnosing any malfunction.
Your vehicle has a
computer which
monitors operation
of the fuel, ignition,
and emission control
systems.