Service bulletins for the 2020 Toyota Mirai
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
111 on file from NHTSA, as of 2026-10-19.
By type
By component
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Only bulletins with component: Steering are shown. Show all
| T-TT-0578-19 Rev | 2020-11-23. Service bulletin. STEERING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. 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. |
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| T-SB-0155-19_Rev | 2020-01-27. Service bulletin. STRUCTURE; STEERING; ELECTRICAL SYSTEM. TSB: REVISION NOTICE December 09, 2019 Rev1: ? Step 3, perform steering sensor zero point calibration, was added to the Before Inspection section. Any previous printed versions of this bulletin should be discarded. Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: ? Careful inspection for paint chips/scratches and body dents/dings. ? Proper operation of electrical accessories ? Interior cleanliness. ? Proper function of mechanical systems. Customer retention and proper maintenance of vehicles are and have always been a major focus for Toyota. To help remind customers that service is essential to the proper maintenance of the vehicle, dealers are required to install a service reminder sticker before to delivery. By doing this, customers will be reminded to return to your dealership for service. Your current service reminder sticker may be used. (See PDS Check Sheet item 10 of ?Final Inspection and Cleaning.?) A new PDS Check Sheet has been developed for the 2020 model year Mirai. Some check points have been added, expanded, or clarified. Bulletins are available for items in bold type. |
| T-TT-0578-19 | 2019-12-02. Service bulletin. STEERING. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.