Cadillac 2010 STS Automobile User Manual


 
Engine Coolant Heater
The engine coolant heater can provide easier starting
and better fuel economy during engine warmup in cold
weather conditions at or below 18°C (0°F). Vehicles
with an engine coolant heater should be plugged in at
least four hours before starting. Some models have an
internal thermostat in the cord which will prevent
engine coolant heater operation at temperatures
above 18°C (0°F).
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
For the 3.6L V6 engine, the cord is located in the
front of the engine compartment, on the passenger
side of the vehicle.
For the 4.6L V8 engine, the cord is located in the
engine compartment on the driver side of the
vehicle near the inner fender and above the strut.
3. You must remove the plastic cap to access
the plug.
4. Plug it into a normal, grounded 110-volt AC outlet.
{
WARNING:
Plugging the cord into an ungrounded outlet could
cause an electrical shock. Also, the wrong kind of
extension cord could overheat and cause a fire.
You could be seriously injured. Plug the cord into
a properly grounded three-prong 110-volt AC
outlet. If the cord will not reach, use a heavy-duty
three-prong extension cord rated for at least
15 amps.
5. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away from
moving engine parts. If you do not, it could be
damaged.
The length of time the heater should remain plugged in
depends on several factors. Ask a dealer/retailer in the
area where you will be parking the vehicle for the best
advice on this.
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