Lexus ES manuals

Lexus ES: Lexus Safety System + 2.0

The Lexus Safety System + 2.0 consists of the following drive assist systems and contributes to a safe and comfortable driving experience:

Driving assist system

WARNING

■Lexus Safety System + 2.0 The Lexus Safety System + 2.0 is designed to operate under the assumption that the driver will drive safely, and is designed to help reduce the impact to the occupants and the vehicle in the case of a collision or assist the driver in normal driving conditions.

As there is a limit to the degree of recognition accuracy and control performance that this system can provide, do not overly rely on this system. The driver is always responsible for paying attention to the vehicle's surroundings and driving safely.

Sensors

Two types of sensors, located behind the front grille and windshield, detect information necessary to operate the drive assist systems.

Lexus ES. Using the driving support systems

  1. Radar sensor
  2. Front camera

WARNING

■To avoid malfunction of the radar sensor Observe the following precautions.

Otherwise, the radar sensor may not operate properly, possibly leading to an accident resulting in death or serious injury.

Lexus ES. Using the driving support systems

  1. Radar sensor
  2. Grille cover

If the front of the radar sensor or the front or back of the grille cover is dirty or covered with water droplets, snow, etc., clean it.

Clean the radar sensor and grille cover with a soft cloth to avoid damaging them.

■To avoid malfunction of the front camera Observe the following precautions.

Otherwise, the front camera may not operate properly, possibly leading to an accident resulting in death or serious injury.

Lexus ES. Using the driving support systems

  1. From the top of the windshield to approximately 0.4 in. (1 cm) below the bottom of the front camera
  2. Approximately 7.9 in. (20 cm) (Approximately 4.0 in. [10 cm] to the right and left from the center of the front camera)

WARNING

■If a warning message is displayed on the multi-information display A system may be temporarily unavailable or there may be a malfunction in the system.

Situation Actions
When the area around a sensor is covered with dirt, moisture (fogged up, covered with condensation, ice, etc.), or other foreign matter To clean the part of the windshield in front of the front camera, use the windshield wipers or the windshield defogger of the air conditioning system
When the temperature around the front camera is outside of the operational range, such as when the vehicle is in the sun or in an extremely cold environment If the front camera is hot, such as after the vehicle had been parked in the sun, use the air conditioning system to decrease the temperature around the front camera.

If a sunshade was used when the vehicle was parked, depending on its type, the sunlight reflected from the surface of the sunshade may cause the temperature of the front camera to become excessively high.

If the front camera is cold, such after the vehicle is parked in an extremely cold environment, use the air conditioning system to increase the temperature around the front camera.
The area in front of the front camera is obstructed, such as when the hood is open or a sticker is attached to the part of the windshield in front of the front camera. Close the hood, remove the sticker, etc. to clear the obstruction.

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 PCS (Pre-Collision System)

The pre-collision system uses a radar sensor and front camera to detect objects in front of the vehicle. When the system determines that the possibility of a frontal collision with an object is

 LTA (Lane Tracing Assist)

When driving on highways and freeways with white (yellow) lane lines, this function alerts the driver when the vehicle might depart from its lane or course* and provides assistance by operating t

 RSA (Road Sign Assist)

The RSA system recognizes specific road signs using the front camera to provide information to the driver via the display. If the system judges that the vehicle is being driven over the speed l

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 Parts Location

PARTS LOCATION ILLUSTRATION *1 FUEL LID LOCK WITH MOTOR ASSEMBLY *2 FUEL LID OPENER SWITCH *3 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - FUEL OPN RELAY *4 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - FUEL OPN FUSE *5 TRUNK AND FUEL SWITCH ASSEMBLY -

 Steering Angle Midpoint Initial Setting Incomplete (C1AEA)

DESCRIPTION When the clearance warning ECU assembly detects that the steering angle neutral point memorization is incomplete during self diagnosis, C1AEA is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1AEA Steering Angle Midpoint Initial Setting Incomplete S

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