Chevrolet 2009 TrailBlazer, Owner'S Manual

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Parking on Hills
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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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CAUTION:
It can be dangerous to get out of the vehicle if the
shift lever is not fully in P (Park) with the parking
brake firmly set. The vehicle can roll.
If the engine has been left running, the vehicle can
move suddenly. You or others could be injured.
To be sure the vehicle will not move, even when
on fairly level ground, use the steps that follow.
Always put the shift lever fully in P (Park) with the
parking brake firmly set.
If the transfer case on four-wheel drive vehicles is
in N (Neutral), the vehicle will be free to roll, even
if the shift lever is in P (Park). Be sure the transfer
case is in a drive gear — not in N (Neutral).
See Four-Wheel Drive on page 2-30.
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