Your vehicle has two separate circuit brake systems. Each circuit works diagonally across the vehicle. If one circuit of the brake system should fail, the other half of the system still works. If one circuit fails, the brake pedal will go down much closer to the floor than usual and you will need to press it down much harder. And a much longer distance will be needed to stop the vehicle.
Brake booster
The brake booster uses engine manifold vacuum to assist braking force. Do not turn the ignition switch to the "LOCK"/ "OFF" position while driving because that will turn off the brake booster, resulting in poor braking power.
The brakes will continue to work even when the brake booster completely stops functioning. If this happens, however, you will have to depress the pedal much harder than normal and the braking distance will increase.
Brake system
Brake assist systemDtc u0164 lost communication with hvac control module
INSTRUMENTATION/DRIVER INFO (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0164 LOST COMMUNICATION WITH HVAC CONTROL MODULEDetected when CAN data is not received from A/C CM.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE"> ...
Shift lock function
The shift lock function helps prevent the
improper operation of the select lever.
The select lever cannot be operated
unless the ignition switch is turned to the
"ON" position and the brake pedal is
depressed.
The select lever cannot be moved from
the "P" position to any other positio ...
Caution
AIRBAG SYSTEM > General DescriptionCAUTION1. BEFORE STARTING ALL WORKS• Before performing vehicle maintenance, turn the ignition switch to OFF and disconnect the negative terminal from battery. NOTE">• The airbag system (including pretensioner) is fitted with a backup power s ...