Service bulletins for the 2021 Mazda CX-9
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.
428 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| MT-003-20 | 2020-09-01. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about an inoperative power liftgate (PLG) and the any of the following DTC's stored in memory: • U3003:16 (Power liftgate (PLG) control module power supply voltage low input) • U3003:17 (Power liftgate (PLG) control module power supply voltage high input). This may be caused by low or high vehicle battery voltage. |
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| 06-003-20-3718 | 2020-09-01. Service bulletin. STEERING. Some customers may complain of a steering wheel vibration (in a rotational direction), when they are not holding onto the steering wheel. The vibration stops when holding onto the steering wheel or when driving. This may be caused by improper control logic of the EPS control module. To eliminate this concern, the EPS control logic has been modified. |
| SA-056-20 | 2020-08-05. Service bulletin. STRUCTURE:BODY:DOOR. Some customers or technicians (during PDI) may have concerns with the front doors sticking (especially on hot days) and/or poor appearance, fitment, alignment or gaps with the front and rear door sash molding. These concerns may be related to the door sash molding interference between the front and rear doors. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.