Jeep 2015 Grand Cherokee SRT - User Guide - Manual (Page 178)

Launch Mode — If Equipped
This system maximizes acceleration traction for straight line racing. To use Launch
Mode please follow the steps below:
1. Bring vehicle to complete stop on a level track surface with the engine running.
2. Set the steering wheel for straight ahead driving.
3. Fully press the brake pedal.
4. Press and release the “LAUNCH” Button.
5. Press the accelerator pedal to the floor.
NOTE:
If the cluster launch DID message indicates all conditions are correct for launch and
the throttle is pressed to the floor quickly (within approximately 1/2 second) the
system will hold the engine speed to a preset speed (below the engine rev limiter
speed).
6. Release the brake pedal.
Pressing the launch control button when launch control is active will deactivate
launch control.
NOTE:
• Launch Mode brings the engine to optimum RPM and waits for the driver to
release the brake. Launch Mode then uses engine throttle only to achieve
controlled wheelslip for maximum acceleration through 62 mph (100 km/h).
• Launch Mode can be initiated in any of the Select Trac Modes.
• Launch Mode is not available until the 500 mile (805 km) break-in has been
achieved.
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