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Lexus IS: How to Adjust Bluetooth Volume

Is your voice coming through poorly over Bluetooth calls? Learn how to turn up the microphone in your Lexus IS through a secret menu with our how-to guide.

By Cynthia Griffith - November 11, 2014
Contributors: muzzman1, Booyah

This article applies to the Lexus IS 250, IS 350 (2005-2014).

Calling people from your Lexus IS with its built-in Bluetooth can be hit or miss at times. Sometimes the microphone volume is set too low and your voice will be hard to hear on the other end. While this isn't something you can change by the twist of a nob, you can change the microphone's sensitivity through your Lexus' secret menu. This simple, DIY task can be performed by a novice driver in a matter of minutes. If you simply don't have the time, you could also take your vehicle in to your local Lexus dealership and have the volume professionally adjusted. Here's a brief overview of what to expect if you take on this minor repair yourself.

Tools Needed

  • None, but the owner's manual could prove helpful for any questions.

Step 1 - Turn the car on

With your foot off the brake pedal, press the power button once to enter accessory mode. Your car won't be running, but the power will be on. You'll know that you're in this mode when your power button is glowing amber. You navigation system should also come on.

Figure 1. The navigation screen should come on and the power button should glow orange.

Step 2 - Access the service menu

Press and hold the MENU button on the remote touch controller. At the same time, cycle your headlights from OFF/AUTO to ON four times quickly. The service menu should appear.

Figure 2. Select the function check/setting.

Step 3 - Scroll through the Bluetooth service menu

When you reach the microphone volume section of the Bluetooth service menu, adjust the volume to a level that is most comfortable for you.

  • Figure 3. Select "Hands-free Volume Setting."
  • Figure 4. Change the volume of your voice through the Bluetooth microphone.

Understanding the Bluetooth system in your Lexus IS will help you get the most out of your vehicle, which is fully equipped with various tech features designed for each driver's convenience. Enjoy hands-free communication, savvy navigation and more each time you hit the open road in your Lexus IS.

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