Toyota Camry (XV70): Precaution

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected.

IGNITION SWITCH EXPRESSIONS

(a) The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section.

PRECAUTIONS FOR FRONT RADAR SENSOR SYSTEM

(a) The millimeter wave radar sensor assembly may not be able to reliably detect the following objects:

• Pylons made from plastic, etc., glass surfaces such as the entrance to a convenience store, low to the ground objects such as curbs, etc.
• Persons or objects laying down
• Pedestrians, bicycles, motorcycles, trees, animals, walls, etc.

(b) The millimeter wave radar sensor assembly may not be able to detect obstacles or accurately measure the distance, angle or speed of obstacles in the following situations:

• When the preceding vehicle or vehicles travelling in another lane splashes water or kicks up snow at the front of the vehicle
• When the rear end of the preceding vehicle is small (such as an empty trailer)
• When the posture of the vehicle has changed greatly due to modifications or overloading
• When raindrops or snow is stuck on the front of the sensor or on the front or back of the radar sensor cover
• When driving in bad weather (rain, fog, snow, sandstorms, etc.)
• When the front grille or radar sensor cover has been subjected to a strong impact
• When the radar sensor cover is damaged as a result of an impact, or the installation condition of the millimeter wave radar sensor assembly has changed
• When a vehicle cuts closely in front of the vehicle, or when a two-wheeled vehicle is being driven close by
• When a non-genuine radar sensor cover is installed
• When an accessory, such as bull bars, a grille guard, etc., which interferes with millimeter radio waves is installed in front of the millimeter wave radar sensor assembly
• When the radar sensor cover and its surrounding area has been painted or is covered with a sticker

(c) The sensor may mistakenly detect signs over the road, structures such as traffic lights, ceilings of tunnels, steel plates on the road, high bridges, bridge seams, manholes, cat's eyes, gutters, bottles, cans, etc.

(d) The sensor may mistakenly detect vehicles driving around curves nearby and vehicles driving in the distance as though they are driving in the same lane as the vehicle.

(e) The sensor may mistakenly detect or fail to detect objects when driving in an environment where there are many reflective objects around, such as a tunnel.

(f) The following objects may hinder the sensor's ability to detect objects. Therefore, always make sure that the radar sensor cover and the front of the millimeter wave radar sensor assembly are kept clean.

• Mud, insects, oil, etc.
• Snow
• Metal film (aluminum foil, candy wrappers that have a metallic coating, etc.)

PRECAUTIONS WHEN REPLACING MILLIMETER WAVE RADAR SENSOR ASSEMBLY

(a) Millimeter wave radar sensor assembly dirt detection function:

• The millimeter wave radar sensor assembly can automatically detect dirt on the sensor surface or the front or back surface of the radar sensor cover, however, dirt may not always be detected.
• The dirt detection function may not operate if a metal object or plastic sheet with metal coating is attached to the sensor or the radar sensor cover.
• The dirt detection function may not operate if there is snow or ice on the sensor or the radar sensor cover.

(b) Do not apply excessive force to the millimeter wave radar sensor assembly or subject it to a strong impact.

(c) Do not disassemble the millimeter wave radar sensor assembly.

(d) Do not reuse a millimeter wave radar sensor assembly that has been dropped or subjected to a strong impact.

(e) If the front bumper or front grille has been subjected to an impact, the system may not operate correctly due to damage to the millimeter wave radar sensor assembly or misalignment of the beam axis.

(f) Do not modify, paint or replace the radar sensor cover and other parts around the millimeter wave radar sensor assembly.

(g) Do not attach accessories or stickers to the millimeter wave radar sensor assembly, radar sensor cover or its surrounding area.

(h) Do not apply excessive force to the radar sensor cover or subject it to strong impact.

(i) Remove snow from the radar sensor cover.

(j) Keep the radar sensor cover clean.

(k) Do not modify the vehicle or change its height and posture.

(l) Do not remove the label from the millimeter wave radar sensor assembly.

REPLACEMENT PRECAUTIONS

(a) Millimeter wave radar sensor assembly:

(1) When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.

(2) When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly beam axis alignment and to clear the vehicle control history. Before performing the Driving Adjustment, make sure to read Before Starting Driving Adjustment.

HINT:

Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.

Triangle Target: Click here

Flat Surface Target: Click here

Driving Adjustment: Click here

(b) Forward recognition camera:

(1) When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored.

(2) When the forward recognition camera is replaced with a new one or the windshield glass is replaced or removed/installed, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history for each system.

HINT:

Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.

One Time Recognition: Click here

Sequential Recognition: Click here

Driving Adjustment: Click here

(3) Do not damage the forward recognition camera lens or allow it to become dirty.

NOTICE:

If the forward recognition camera lens is touched, replace the forward recognition camera with a new one.

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