Toyota Avalon 2018–2020 — technical service bulletin
Bulletin T-TT-0631-20 Rev · NHTSA communication 10202447 · issued Sep 1, 2021
Technical service bulletin
communication type
Equipment
component
2018–2020
model years
20
vehicle entries
Official summary
TT: NOTE: This document only applies to certain audio packages for the following vehicles. 2019 C-HR (Audio Plus & Premium Only) 2020 Prius (Audio Only) 2020 Prius Prime (Audio Plus Only) Head unit telematics services become inoperative after DCM replacement and activation if the guest has an ACTIVE Verizon Wi-Fi Pre-Paid subscription. Head unit services include Wi-Fi, Destination Assist, Dynamic Navigation, and Dynamic Voice Recognition. Verizon is not able to transfer the Pre-Paid subscription to the new DCM automatically. As a result, the guest is unable to use their head unit telematics se
Vehicles covered
- 2019 Toyota Avalon
- 2020 Toyota Avalon
- 2019 Toyota Avalon Hybrid
- 2020 Toyota Avalon Hybrid
- 2018 Toyota Camry
- 2019 Toyota Camry
- 2019 Toyota Camry Hybrid
- 2020 Toyota Camry Hybrid
- 2019 Toyota C-HR
- 2020 Toyota Corolla
- 2019 Toyota Corolla Hatchback
- 2018 Toyota Mirai
- 2019 Toyota Mirai
- 2020 Toyota Mirai
- 2020 Toyota Prius
- 2020 Toyota Prius Prime
- 2019 Toyota RAV4
- 2018 Toyota Sienna
- 2019 Toyota Sienna
- 2020 Toyota Sienna
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.