Park Interlock And Neutral Lock

WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

Neutral lock is a requirement for the Transmission Control Switch (TCS) knob. The TCS knob is always locked at ignition on when the engine is not running.

When driving in 'S', 'D' or 'R' at a speed of more than 5 km/h (3 mph), the driver selects 'P' or 'N':

Without the brake pedal pressed, the TCS knob will be immediately locked once the vehicle speed falls to below 5 km/h (3 mph).
With the brake pedal pressed, the TCS knob will remain unlocked for as long as the brake pedal remains pressed, regardless of vehicle speed.

The transmission will only engage 'P' once the vehicle speed is less than 2 km/h (1 mph).

If the driver selects 'N' neutral and releases the brake pedal with a vehicle speed of less than 5 km/h (3 mph), the TCS knob will be locked 2 seconds after 'N' neutral is selected. The TCS knob will remain locked until the driver presses the brake pedal again.

If the transmission receives a range change request without the brake pedal pressed, the TCM initiates a soft lock function. The transmission will remain in 'P' or 'N', depending on the starting position.

If a transmission position letter is flashing in the message center and the vehicle has no drive, the driver must:

Press the brake pedal.
Reselect 'N' neutral or 'P' park on the TCS knob.
Select the required driving range, ensuring that the brake pedal is pressed.

Rocking Function

The rocking function compliments the neutral lock function. For all changes from a non-driving range to a driving range, it is necessary to press the brake pedal (to release either the park interlock or neutral lock).

In situations where the driver will require to change the gear selection from 'R' to 'D', or from 'D' to 'R', without brake pedal input (for example car park maneuvering, three point turns or 'rocking' the vehicle from a slippery surface), the rocking function gives a 2 second lock delay when 'N' is selected on the TCS knob and the brake pedal is not pressed.

On China vehicles, the rocking function is not applicable.