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NHTSA ID Number: 11003607

Manufacturer Communication Number: T-TT-0751-24

TSB/Document Date: 2024-07-06


Summary

Some customers have complained that the wireless functions of their Key Fob stop working. Key Fob LEDs will not turn ON, but engine starts with key held up against start button. Key battery voltage is confirmed OK and no DTC/RoB is found. This condition may occur if customer places Key Fob near wireless charger while phone is charging. When the key battery is removed and reinstalled, the Key Fob begins to operate normally.


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TSB/Document ID: T-TT-0751-24

Replacement Service Bulletin Number:

MFR Communication Date: 2024-04-01

MFR Internal Campaign ID/Software Version: T-TT-0751-24

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ELECTRICAL SYSTEM

MFR Component System:

MFR Component Subsystem:


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Tech Tip T-TT-0751-24

April 01, 2024

Subject

Market

Smart Key Functions Inoperative Until Battery
Removal and Reinstallation - Signal Interference Occurs When Placing Key Fob on Wireless Charge
While Charging Phone

USA

Service Category

Section

Vehicle Interior

Theft Deterrent/Keyless Entry

Applicability

Grand Highlander and others. MY22-24
APPLICABLE VEHICLES

2023-2024
2023-2024
2024
2023-2024
2024
2023-2024

Highlander
Tacoma
Grand Highlander HV
Sequoia HV
Sequoia
Sienna HV

2023-2024
2023-2024
2024
2023-2024
2024

Highlander HV
Tundra
Tacoma HV
Tundra HV
Grand Highlander

CONDITION

Some customers have complained that the wireless functions of their Key Fob stop working.
Key Fob LEDs will not turn ON, but engine starts with key held up against start button.
Key battery voltage is confirmed OK and no DTC/RoB is found.
This condition may occur if customer places Key Fob near wireless charger while phone is charging.
When the key battery is removed and reinstalled, the Key Fob begins to operate normally.
RECOMMENDATIONS

If the condition above is present, please remove and reinstall the Key Fob battery.
Please advise customer to avoid placing Key Fob (or other electronic devices) near wireless charger
when phone is charging. This will prevent any potential signal interference between devices.
LINK REFERENCES
This Tech Tip does not contain any link references

Expires on
Ver. 5.1 01/01/2024 T

04/01/2025

© 2024, ToyotaeBay logo Motor Sales, USA

Page 1 of 1

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