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Hsa off, Electronic roll mitigation (erm) – Jeep 2015 Wrangler - Owner Manual User Manual

Page 476

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HSA Off
If you wish to turn off the HSA system, follow this

procedure:
1. Start with the engine off and vehicle in PARK (auto-

matic transmission) or NEUTRAL with clutch out

(manual transmission) with wheels straight. Apply

parking brake on manual transmission vehicle.

2. Start the engine.
3. With the engine running, the brake applied, and the

clutch out, rotate the steering wheel 180° counterclock-

wise from center.

4. Press the ESC OFF switch four times within twenty

seconds.

5. Rotate the steering wheel 360° clockwise (180° clock-

wise from center).

6. Cycle ignition switch OFF then ON.

7. If the sequence was completed properly, the “ESC

Activation/Malfunction Indicator Light” will blink

several times to confirm HSA is off.

Steps 1-7 must be completed within 90 seconds to turn off

HSA. Repeat steps 1-7 to re-enable HSA functionality.

Electronic Roll Mitigation (ERM)

This system anticipates the potential for wheel lift by

monitoring the driver’s steering wheel input and the

speed of the vehicle. When ERM determines that the rate

of change of the steering wheel angle and vehicle’s speed

are sufficient to potentially cause wheel lift, it applies the

appropriate brake and may reduce engine power to

lessen the chance that wheel lift will occur. ERM will only

intervene during very severe or evasive driving maneu-

vers.
Electronic Roll Mitigation (ERM) can only reduce the

chance of wheel lift occurring during severe or evasive

474 STARTING AND OPERATING