Mazda CX-3 2017–2020 — technical service bulletin

Bulletin SA-047-20 · NHTSA communication 10174690 · issued Apr 28, 2020

Technical service bulletin

communication type

Power Train

component

2017–2020

model years

vehicle entries

Official summary

Be aware that some new AWD vehicles have been found with cracked rear differential cases, as shown below. NOTE: This may affect new vehicles just delivered to the dealer or new vehicles in dealer inventory.

Vehicles covered

2017 Mazda CX-3
2018 Mazda CX-3
2019 Mazda CX-3
2020 Mazda CX-3
2017 Mazda CX-5
2018 Mazda CX-5
2019 Mazda CX-5
2020 Mazda CX-5
2017 Mazda CX-9
2018 Mazda CX-9
2019 Mazda CX-9
2020 Mazda CX-9

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.