PKSB (Parking Support Brake) The Parking Support Brake system consists of the following functions that operate when driving at a low speed or backing up, such as when parking. When the system determines that the probability of a collision with a detected object or pedestrian is high, a warning operates to urge the driver to take evasive action. If the system determines that the possibility of a collision with a detected object or pedestrian is extremely high, the brakes are automatically applied to help avoid the collision or help reduce the impact of the collision. PKSB (Parking Support Brake) system Parking Support Brake function (static objects) Parking Support Brake function (static objects) Parking Support Brake function (rear-crossing vehicles) Parking Support Brake function (rear-crossing vehicles) Warning: Cautions regarding the use of the system Do not overly rely on the system, as doing so may lead to an accident. Always drive while checking the safety of the surroundings of the vehicle. Depending on the vehicle and road conditions, weather, etc., the system may not operate. The detection capabilities of sensors and radars are limited. Always drive while checking the safety of the surroundings of the vehicle. The driver is solely responsible for safe driving. Always drive carefully, taking care to observe your surroundings. The Parking Support Brake system is designed to provide support to lessen the severity of collisions. However, it may not operate in some situations. The Parking Support Brake system is not designed to stop the vehicle completely. Additionally, even if the system has stopped the vehicle, it is necessary to depress the brake pedal immediately as brake control will be canceled after approximately 2 seconds. It is extremely dangerous to check the system operations by intentionally driving the vehicle into the direction of a wall, etc. Never attempt such actions. When to disable the Parking Support Brake In the following situations, disable the Parking Support Brake as the system may operate even though there is no possibility of a collision. When inspecting the vehicle using a chassis roller, chassis dynamo or free roller When loading the vehicle onto a boat, truck or other transport vessel If the suspension has been modified or tires of a size other than specified are installed If the front of the vehicle is raised or lowered due to the carried load When equipment that may obstruct a sensor is installed, such as a towing eyelet, bumper protector (an additional trim strip, etc.), bicycle carrier, or snow plow When using automatic car washing devices If the vehicle cannot be driven in a stable manner, such as when the vehicle has been in an accident or is malfunctioning When the vehicle is driven in a sporty manner or off-road When the tires are not properly inflated When the tires are very worn When a tire chains, compact spare tire or an emergency tire puncture repair kit is used Notice: If “ PKSB Unavailable” is displayed on the multi-information display and the PKSB OFF indicator is on If this message is displayed immediately after the power switch is changed to ON, operate the vehicle carefully, paying attention to your surroundings. It may be necessary to drive the vehicle for a certain amount of time before the system returns to normal. (If the system does not return to normal after driving for a while, clean the sensors and their surrounding area on the bumpers.) PKSB (Parking Support Brake) Enabling/disabling the system Parking Support Brake (PKSB) Enabling/disabling the system Switches PKSB (Parking Support Brake) Enabling/Disabling the Parking Support Brake Press the switch to enable/disable the parking support brake. All of the Parking Support Brake functions (static objects and rear-crossing vehicles) are enabled/disabled simultaneously. When the Parking Support Brake is disabled, the PKSB OFF indicator (Indicators) illuminates. To enable the system, press the switch again. If disabled using this method, the system will not be re-enabled by turning the power switch off and then to ON. Note: When towing a trailer When the 7-pin connector is connected and Auto Trailer Detection (ATD) (Auto Trailer Detection (ATD)) is activated, the function automatically turns off. When “ 4L” mode selected (4WD models) The parking support brake is automatically disabled. Display and buzzer for hybrid system output restriction control and brake control If the hybrid system output restriction control or brake control operates, a buzzer will sound and a message will be displayed on the multi-information display and head-up display (if equipped), multimedia display, to alert the driver. Depending on the situation, hybrid system output restriction control will operate to either limit acceleration or restrict output as much as possible. Hybrid system output restriction control is operating (acceleration restriction) Acceleration greater than a certain amount is restricted by the system. Multi-information display: “ Object Detected Acceleration Reduced” Multimedia display and head-up display (if equipped): No warning displayed PKSB OFF indicator: Not illuminated Buzzer: Does not sound Hybrid system output restriction control is operating (output restricted as much as possible) The system has determined that stronger-than-normal brake operation is necessary. Multimedia display: “ BRAKE!” Multi-information display and head-up display (if equipped): “ BRAKE!” PKSB OFF indicator: Not illuminated Buzzer: Short beep Brake control is operating The system determined that emergency braking is necessary. Multimedia display: “ BRAKE!” Multi-information display and head-up display (if equipped): “ BRAKE!” PKSB OFF indicator: Not illuminated Buzzer: Short beep Vehicle stopped by system operation The vehicle has been stopped by brake control operation. Multimedia display: “ Press Brake Pedal” Multi-information display and head-up display (if equipped): “ Switch to Brake” (If the accelerator pedal is not depressed, “ Press Brake Pedal” will be displayed.) PKSB OFF indicator: Illuminated Buzzer: Short beep System overview If the Parking Support Brake determines that a collision with a detected object is possible, the hybrid system output will be restricted to restrain any increase in the vehicle speed. (Hybrid system output restriction control: See figure 2.)Additionally, if the accelerator pedal continues to be depressed, the brakes will be applied automatically to reduce the vehicle speed. (Brake control: See figure 3.) Figure 1 When the PKSB (Parking Support Brake) is not operating Hybrid system output Braking force Time Figure 2 When hybrid system output restriction control operates Hybrid system output Braking force Time Hybrid system output restriction control begins operating (System determines that possibility of collision with detected object is high) Figure 3 When hybrid system output restriction control and brake control operates Hybrid system output Braking force Time Hybrid system output restriction control begins operating (System determines that possibility of collision with detected object is high) Brake control begins operating (System determines that possibility of collision with detected object is extremely high) Note: If the Parking Support Brake has operated If the vehicle is stopped due to operation of the Parking Support Brake, the Parking Support Brake will be disabled and the PKSB OFF indicator will illuminate. If the Parking Support Brake operates unnecessarily, brake control can be canceled by depressing the brake pedal or waiting for approximately 2 seconds for it to automatically be canceled. Then, the vehicle can be operated by depressing the accelerator pedal. Re-enabling the Parking Support Brake To re-enable the Parking Support Brake when it has been disabled due to operation of the Parking Support Brake, either enable the system again (Enabling/Disabling the Parking Support Brake), or turn the power switch off and then back to ON. Additionally, if any of the following conditions are met, the system will be re-enabled automatically and the PKSB OFF indicator will turn off: The P shift position is selected The object is no longer detected in the traveling direction of the vehicle The traveling direction of the vehicle changes PKSB (Parking Support Brake) Warning message Parking Support Brake (PKSB) Warning message If “ PKSB Unavailable” is displayed on the multi-information display and the PKSB OFF indicator is on If the vehicle is stopped due to operation of the Parking Support Brake, the Parking Support Brake will be disabled and the PKSB OFF indicator will illuminate. A sensor may be covered with water drops, ice, snow, dirt, etc. Remove the water drops, ice, snow, dirt, etc., from the sensor to return the system to normal.Also, due to ice forming on a sensor at low temperatures, a warning message may be displayed or the sensor may not be able to detect an object. Once the ice melts, the system will return to normal. If this message continues to be displayed even after cleaning the sensor, or is displayed even though the sensor is clean, have the vehicle inspected by your Toyota dealer. Initialization Parking Support Brake If a 12-volt battery terminal has been disconnected and reconnected The system needs to be initialized. To initialize the system, drive the vehicle straight ahead for 5 seconds or more at a speed of approximately 22 mph (35 km/h) or more.