Roll Stability Advisor
IMPORTANT: This is not an advance warning
system. The RSA displays a message only after
the driving maneuver is completed.
The roll stability system uses a lateral-acceleration
sensor that monitors rollover risk. Shortly after a
curve, lane change, or other driving maneuver that
results in a rollover risk detection, a dash warning
light illuminates, an audible tone sounds, and an ad-
visory message is displayed in the driver message
center. The purpose is to advise the driver that the
previous maneuver produced a rollover risk.
The RSA displays different text messages depending
on the severity of the risk of each rollover risk occur-
rence. From the highest risk level to the lowest risk
level, the system will sound a warning tone and dis-
play a message, as shown in
Fig. 4.28.
NOTE: The system will calculate and recom-
mend a speed reduction value. It may be differ-
ent than the values shown here.
Bring the vehicle to an authorized Freightliner service
facility if a system failure message is displayed.
lamp indicates traction
OR roll control event.
Follow instructions in
driver’s manual.
24−01204−000
07/11/2003
f080125
SAFETY INSTRUCTIONS
Fig. 4.26, Roll Stability Decal
06/26/2003 f602128
Fig. 4.27, Roll Stability Indicator Lamp
Message to Display
41
MessageMSG
No.
System Fault1
WARNING
RAC SYSTEM FAIL
ACTIVE SLOWING
ROLLOVER RISK
4 NoneRSC2
VERY HIGH RISK OF
ROLLOVER DETECTED
REDUCE SPEED
AT LEAST 11 KPH
REDUCE SPEED
AT LEAST 7 MPH
or in metric
19.6 10RSA Level 33
HIGH RISK OF
ROLLOVER DETECTED
REDUCE SPEED
AT LEAST 11 KPH
REDUCE SPEED
AT LEAST 7 MPH
or in metric
14 5RSA Level 24
ROLLOVER RISK
DETECTED
REDUCE SPEED
AT LEAST 11 KPH
or in metric
REDUCE SPEED
AT LEAST 7 MPH
8.4 2RSA Level 15
HARD BRAKING WITH
ABS ACTIVATED
LOOK AHEAD
BRAKE SOONER
14 0.5HBED Level 36
HARD BRAKING
DETECTED
LOOK AHEAD
BRAKE SOONER
14 0.5HBED Level 27
LOSS OF TRACTION
ABS ACTIVATED
ROAD SURFACE
MAY BE POOR
14 0.5HBED Level 18
07/25/2008 f040769
Display
Time:
Seconds
Buzzer
Time:
Seconds
Fig. 4.28, Roll Stability and Hard-Braking Warnings
Instruments
4.26
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