Traverse FWD V6-3.6L (2009)
recorded for one or two different drivers. Once a steering column driving entry or exit position is adjusted by the driver it must be set in memory. To
record a position, the driver must press the SET MEMORY button, which is followed by a chime to acknowledge that input. Within 5 seconds, either the
MEMORY 1 or MEMORY 2 button must be pressed. When the DDM receives these inputs, it sends a class 2 message to the SCM. The SCM records
the feedback voltages from the column position sensors for that driver. A single chime is sounded to acknowledge that the position was recorded.
To record a second position, the second driver must press the SET MEMORY 2 button, after they have made the appropriate adjustments, and the
process continued.
Memory Personalization Recall
When the driver presses the MEMORY 1 or MEMORY 2 button, the DDSA receives the input and a single chime is sounded. The DDSA sends a class 2
message to the SCM indicating which driver memory setting has been selected. The SCM applies both battery positive voltage and ground to the column
motors until all the column position sensor feedback voltages equal the feedback voltages stored in memory for the appropriate driver.
When a keyless entry transmitter is used to unlock the vehicle doors, the remote function actuator (RFA) module communicates which driver key fob
performed that command. The SCM receives the unlock command via a class 2 message from the RFA module.
Tilt/Telescoping Description
The energy absorbing and locking steering column includes three important features in addition to the steering function.
1. The steering column is energy absorbing and is designed to compress in a front-end collision which will lessen the chance of injury to the driver.
2. The steering column has a tilt/telescoping control system that consists of an electronic control module capable of class 2 serial data
communication, a steering column power assembly with positioning motors and sensors, and a steering column control switch.
3. The multi-function lever provides for the control of the headlamp high beams, and the windshield washer and wiper.
Ignition Lock Cylinder Control Actuator
The vehicle it is equipped with a floor mounted console gear shifter, and has a ignition lock cylinder control actuator system in the steering column as an
added safety feature. The ignition lock cylinder control actuator systems purpose is to prevent the steering wheel from being locked when the
transmission is in gear and the vehicle may still be moving. The ignition lock cylinder control actuator system consists of the BCM, the lock cylinder
relay, and the ignition lock cylinder control actuator. The ignition lock cylinder control actuator contains a pin that is spring loaded out to mechanically
prevent the ignition key cylinder from being turned to the lock position when vehicle speed is above 5 mph for 15 seconds and the transmission is not in
the Park position. If vehicle power is lost, and/or the transmission is not in the Park position the operator will not be able to turn the ignition key to the
lock position and will not be able to remove the ignition key from the column. For situations where the vehicle must be towed, the system can be
overridden by pressing a release button that is reached through an access hole located on the under side of the steering column. First, remove the black
plug covering the hole.
