Phone screen To display the screen shown below, press the Several functions are available to operate on each screen that is displayed by selecting the 4 tabs.
■ Microphone The vehicle's built in microphone is used when talking on the phone. The person you are speaking to can be heard from the front speakers.
To use the hands-free system, you must register your Bluetooth phone in the system. Status display You can check indicators such as signal strength and battery charge on any screen.
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Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Fail-safe Chart
FAIL-SAFE CHART TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM DTC NO. Fail-safe Operation Fail-safe Deactivation Condition U0100 Prohibits switching to 4L or switching from 4L for all shift positions CAN communication signal from ECM is received U0122 Prohibits all switching except from 4H to 2WD CAN communi ...