TSB 09-002-21-3770 — Mazda Service bulletin

09-002-21-3770 is a service bulletin on file with NHTSA for 3 Mazda models, 2002–2013 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
3Vehicles named
3Model years

Vehicles and model years 09-002-21-3770 names

VehicleModel years
Mazda CX-5 2012
Mazda CX-7 2013
Mazda Mazda6 2002

Every document filed under 09-002-21-3770

Document IDFiledType
09-002-21-3770 January 21, 2021 Service bulletin

What 09-002-21-3770 covers

Electrical, Speed control — the component vocabulary NHTSA files this communication under.

← All Mazda CX-5 TSB years TSB lookup by model

Questions buyers ask

What is TSB 09-002-21-3770?

09-002-21-3770 is a service bulletin filed with NHTSA by Mazda, covering 3 Mazda models across the 2002–2013 model years. NHTSA's summary reads: In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer

Which vehicles does 09-002-21-3770 cover?

NHTSA's file names Mazda CX-5 (2012); Mazda CX-7 (2013); Mazda Mazda6 (2002). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB 09-002-21-3770 a recall, and is the repair free?

No. 09-002-21-3770 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of 09-002-21-3770?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 09-002-21-3770, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 09-002-21-3770. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.