Poor Sound Quality in All Modes (Low Volume) [06/2018 - 09/2022]: Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2022 Lexus ES 350, 2022 Lexus ES 250, 2021 Lexus ES 350, 2021 Lexus ES 250, and 2020 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK AUDIO SETTINGS
- Set treble, middle and bass to the initial values and check that the sound is normal.
OK
The sound returns to normal.
HINT:
Sound quality adjustment measures vary according to the type of amplifier.
Result
Proceed to OK NG
Result:
OK
END
Result:
NG
See step 2
- Set treble, middle and bass to the initial values and check that the sound is normal.
- COMPARE WITH ANOTHER VEHICLE OF SAME MODEL
- Compare with another vehicle of the same model which is not malfunctioning to see if there is any difference in the sound quality.
OK
No difference is found.
Result
Proceed to OK NG
Result:
OK
END
Result:
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [06/2018 - 10/2019] , or refer to PROBLEM SYMPTOMS TABLE [10/2019 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - 08/2021] , or refer to PROBLEM SYMPTOMS TABLE [08/2021 - 09/2022]
- Compare with another vehicle of the same model which is not malfunctioning to see if there is any difference in the sound quality.