Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Voice Guidance does not Function

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
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When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.

PROCEDURE

1.	CHECK VOICE GUIDANCE SETTING

(a) Check that the voice guidance setting is not off.

OK:

Voice guidance setting is not off.

CHANGE THE VOICE GUIDANCE SETTING TO ON

2.	CHECK AUDIO FUNCTION

(a) Check that sound can be heard from a front speaker.

OK:

Sound can be heard.

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Front Power Seat Control System(for Gasoline Model With Memory): Wireless Transmitter Memory Function does not Operate
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Toyota Avalon (XX50) 2019-2022 Owners Manual