ELECTRONIC PARKING BRAKE OVERRIDE
Lexus LFA vehicles are equipped with an electrically applied parking brake. The system
uses a switch located on the lower right side of the instrument panel to send a signal to an
electric motor which applies or releases the parking brake. The LFA has the ability to
adjust the amount of tension on the park brake cable through the use of a tension sensor
on the cable and an angle sensor in the vehicle. If the LFA is sitting on a level surface
then moderate tension is applied to the parking brake when the switch is activated. If the
switch is activated with the LFA on an incline, more tension is applied to the parking
brake system to help hold the vehicle in position.
Power is needed in the vehicle to apply and release the parking brake. In the event that
the battery is discharged or the switch, mounted in the dash to the lower right of the
steering wheel, will not release the parking brake, an override procedure is incorporated
into the system.
The first step is to ensure there is battery power in the vehicle, so perform your normal
diagnostic procedure to ensure the battery is functioning. If there is any question as to
the state of charge of the battery, hook your jump starting system to the vehicle following
all the procedures outlined in the jump starting section of this service guide and your
normal jump starting precautions. If ensuring battery power does not release the parking
brake, it will need to be released manually using the following steps.
• Turn the key to the “ON” position
• Shift the transmission into Neutral (“N”) by pulling rearward on both shifter
paddles at the same time
• Turn the key to the OFF position
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