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SERVICE TRAILER BRAKE SYSTEM
On vehicles with the Integrated Trailer Brake Control
(ITBC) system, this message displays and a chime
sounds when there is a problem with the ITBC system.
When this message displays, power is no longer
available to the trailer brakes.
As soon as it is safe to do so, carefully pull your vehicle
over to the side of the road and turn the ignition off.
Check the wiring connection to the trailer and turn the
ignition back on. If this message still displays, either
your vehicle or the trailer needs service. See your
dealer/retailer.
See “Integrated Trailer Brake Control System” under
Towing a Trailer on page 4-50 for more information.
STABILITRAK OFF
If your vehicle has StabiliTrak, this message displays
when you turn off StabiliTrak, or when the stability
control has been automatically disabled. To limit wheel
spin and realize the full benefits of the stability
enhancement system, you should normally leave
StabiliTrak on. However, you should turn StabiliTrak off
if your vehicle gets stuck in sand, mud, ice, or snow
and you want to rock your vehicle to attempt to free it,
or if you are driving in extreme off-road conditions and
require more wheel spin. See If Your Vehicle is Stuck
in Sand, Mud, Ice, or Snow on page 4-30. To turn
the StabiliTrak system on or off, see StabiliTrak
®
System
on page 4-6.
There are several conditions that can cause this message
to appear.
• One condition is overheating, which could occur if
StabiliTrak
®
activates continuously for an extended
period of time.
• The message also displays if the brake system
warning light is on. See Brake System Warning Light
on page 3-42.
• The message could display if the stability system
takes longer than usual to complete its diagnostic
checks due to driving conditions.
• The message displays if an engine or vehicle related
problem has been detected and the vehicle needs
service. See your dealer/retailer.
• The message also displays if the vehicle is shifted
into 4LO.
The message turns off as soon as the conditions that
caused the message to be displayed are no longer
present.
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