Hummer 2006 H3 - Manual (Page 91)

Ignition Positions
With the key in the ignition
switch, you can turn to
four different positions.
LOCK (A): This position locks your ignition. It also
locks your transmission on automatic transmission
vehicles. It will lock your steering wheel on manual
transmission vehicles when the key is removed.
It is a theft-deterrent feature. You will only be able to
remove your key when the ignition is turned to LOCK.
If you have an automatic transmission, the ignition
switch cannot be turned to LOCK unless the shift
lever is in PARK (P).
Notice: Using a tool to force the key from the
ignition switch could cause damage or break the
key. Use the correct key and turn the key only with
your hand. Make sure the key is all the way in.
If it is, turn the steering wheel left and right while
you turn the key hard. If none of this works,
then your vehicle needs service.
ACC (ACCESSORY) (B): This is the position in
which you can operate your electrical accessories or
items plugged into the accessory power outlets.
On automatic transmission vehicles, this position
unlocks the ignition. On manual transmission vehicles,
it unlocks the ignition and steering wheel. Use this
position if your vehicle must be pushed or towed.
ON (C): This is the position that the switch returns to
after you start your engine and release the switch.
The switch stays in ON when the engine is running.
But even when the engine is not running, you can use
ON to operate your electrical accessories and to display
some instrument panel cluster warning and indicator
lights. The transmission is also unlocked in this position
on automatic transmission vehicles.
START (D): This is the position that starts the engine.
When the engine starts, release the key. The ignition
switch will return to ON for normal driving.
When the engine is not running, ACC and ON allow you
to operate your electrical accessories, such as the
radio or items plugged into the accessory power outlets.
A warning tone will sound if you open the driver’s
door when the ignition is in ACC or LOCK and the
key is in the ignition.
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