Jeep WRANGLER 2020 Owner's Manual page 267

Rain Brake Support (RBS)
RBS may improve braking performance in wet
conditions. It will periodically apply a small
amount of brake pressure to remove any water
buildup on the front brake rotors. It functions
when the windshield wipers are in LO or HI
speed. When RBS is active, there is no
notification to the driver and no driver
interaction is required.
Ready Alert Braking (RAB)
RAB may reduce the time required to reach full
braking during emergency braking situations. It
anticipates when an emergency braking
situation may occur by monitoring how fast the
throttle is released by the driver. The Electronic
Brake Controller (EBC) will prepare the brake
system for a panic stop.
Selec-Speed Control (SSC) — If Equipped
SSC is intended for off-road driving in 4WD Low
only. SSC maintains vehicle speed by actively
controlling engine torque and brakes.
SSC has three states:
1. Off (feature is not enabled and will not
activate)
2. Enabled (feature is enabled and ready but
activation conditions are not met, or driver
is actively overriding with brake or throttle
application)
3. Active (feature is enabled and actively
controlling vehicle speed)
Enabling SSC
SSC is enabled by pushing the SSC switch, but
the following conditions must also be met to
enable SSC:
The driveline is in 4WD Low.

The vehicle speed is below 5 mph (8 km/h).

The parking brake is released.

The driver door is closed.

The driver is not applying throttle.

SAFETY
Activating SSC
Once SSC is enabled it will activate automatically
once the following conditions are met:
The driver releases the throttle.

The driver releases the brake.

The transmission is in any selection other

than PARK.
Your vehicle speed is below 20 mph (32 km/h).

The set speed for SSC is selectable by the
driver, and can be adjusted by using the gear
shift +/-. Additionally, the SSC set speed may be
reduced when climbing a grade and the level of
set speed reduction depends on the magnitude
of grade. The following summarizes the SSC set
speeds:
SSC Target Set Speeds
1st = 0.6 mph (1 km/h)

2nd = 1.2 mph (2 km/h)

3rd = 1.8 mph (3 km/h)

4th = 2.5 mph (4 km/h)

5th = 3.1 mph (5 km/h)

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