Technical Service Bulletin T-TT-0578-19 Rev — 2018 TOYOTA SIENNA
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | T-TT-0578-19 Rev |
| Manufacturer | |
| Vehicle | 2018 TOYOTA SIENNA |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
TT: Some customers may encounter Bluetooth® connectivity concerns such as: ?Difficulty to pair the phone. ?Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ?Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2018 TOYOTA SIENNA
T-SB-0112-20 Rev
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T-SB-0053-21
EQUIPMENT:ELECTRICAL
T-SB-0160-18 Rev
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T-TT-0611-20 Rev
ELECTRICAL SYSTEM
T-SB-0047-20 Rev
BACK OVER PREVENTION
T-SB-0039-19 Obs
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T-SB-0044-20
ELECTRICAL SYSTEM:SOFTWARE
T-SB-0055-19 Obs
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
T-SB-0039-19_Rev
STEERING
T-TT-0580-19_Rev
POWER TRAIN