BULLETIN NOTES
APPLICABLE MODEL(S)/VINS
2023 CX-50
DESCRIPTION
Some customers may experience a shock during driving at low speeds when starting from a stop with the accelerator
pedal depressed slightly. This may be caused by improper control software of the TCM causing improper lock up
operation. To eliminate this concern, the control software of the TCM has been modified.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Verify customer concern.
2. Reprogram the TCM with the Mazda Modular Diagnostic System (M-MDS), using the Mazda Diagnostic And Repair
Software (MDARS). Refer to MDARS ECU Reprogramming Procedure.
• If the current calibration file name in the ECU FILENAME screen is the same as shown in the Calibration Files
Information or with a later suffix, reprogramming is not necessary.
3. Clear the DTC, turn the ignition off, and get out of the vehicle.
4. Close and lock the door.
5. Wait for at least ten minutes.
6. Verify the repair by starting the engine and making sure the Check Engine light is OFF and no abnormal warning lights
are ON.
NOTE: If any DTC should remain after performing a DTC erase, diagnose the DTC according to the instructions on
MGSS.
CALIBRATION
Spec

File Name

US

PXAC-21PS1-D

Mexico

PXAD-21PS1-D

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WARRANTY INFORMATION
NOTE:
• This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair.
• This repair will be covered under Federal Emission Warranty (long term).
• Additional diagnostic time cannot be claimed for this repair.
Warranty Type

A

Symptom Code

26

Damage Code

9X

Part Number Main Cause
Quantity
Operation Number / Labor Hours:

5555-21-100
0
XXWBTXFX / 0.3 Hrs.

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