Chevrolet 2009 Cobalt, Owner'S Manual

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Driving on Grades
Notice: Do not tow on steep continuous grades
exceeding 6 miles (9.6 km). Extended, higher
than normal engine and transmission temperatures
may result and damage the vehicle. Frequent stops
are very important to allow the engine and
transmission to cool.
Reduce speed and shift to a lower gear before starting
down a long or steep downgrade. If the transmission
is not shifted down, the brakes might have to be used so
much that they would get hot and no longer work well.
Pay attention to the engine coolant gage. If the
indicator is in the red area, turn off the air conditioning
to reduce engine load. See Engine Overheating on
page 5-32.
When towing under severe conditions such as hot
ambient temperatures or steep grades, the vehicle may
experience more transmission shifting. A COOLING
MODE ON message may also appear in the DIC.
This alerts the driver that the shifting mode is in progress
and is aiding engine cooling. See DIC Warnings and
Messages on page 3-46 for more information.
Parking on Hills
{
CAUTION:
Parking the vehicle on a hill with the trailer
attached can be dangerous. If something goes
wrong, the rig could start to move. People can be
injured, and both the vehicle and the trailer can
be damaged. When possible, always park the rig
on a flat surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park)
yet. Turn the wheels into the curb if facing downhill
or into traffic if facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
brake pedal until the chocks absorb the load.
4. Reapply the brake pedal. Then apply the parking
brake and shift into P (Park).
5. Release the brake pedal.
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