NHTSA service bulletin

NHTSA Service Bulletin 10170738: 2020 Toyota Mirai

Official manufacturer communication context for 2020 Toyota Mirai, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10170738 summary graphic for 2020 Toyota Mirai
10170738NHTSA document ID
Over-the-air software updatecommunication type
1affected product rows
82/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

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.

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
ToyotaMirai2020Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10170738?

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.

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

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