# Service bulletin 09\-004\-22a

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.

- Type: Service bulletin
- NHTSA id: 10218727
- Published by NHTSA: 2022\-09\-06
- Manufacturer's number: 09\-004\-22a
- Manufacturer's date: 2022\-08\-08
- NHTSA component: LATCHES/LOCKS/LINKAGES

## NHTSA's summary

Some CX\-5 and CX\-30 customers may find that the liftgate does not close when pressing the power liftgate \(PLG\) rear switch located on the interior liftgate trim. This may be caused by PLG switch corrosion. Water from a high pressure car washer and/or condensation may drip onto the switch connector and cause corrosion. To eliminate this concern, the PLG rear switch has been modified with a waterproof connector. Some Mazda3, CX\-30 and MX\-30 customers may complain that the vehicle door locking system does not work when the door lock switch on the liftgate interior trim is pressed. DTC B11C4:23 \(BCM \- liftgate lock switch circuit malfunction\) may be stored. This may be caused during a high pressure car wash and/or condensation. Water may enter through the rear center brand emblem base component and drip onto the switch connector causing corrosion. The rusted connector may also cause a battery drain. To eliminate this concern, the rear center brand emblem base has been modified to prevent water entry \(Mazda3\) and the rear harness has been modified to prevent water infiltration \(Mazda3, CX\-30 and MX\-30\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10218727-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10218727-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Latches and locks

## Trouble codes named

B11C4

## Vehicles listed

- 2020 to 2021 MAZDA CX\-30
- 2017 to 2020 MAZDA CX\-5
- 2019 to 2022 MAZDA MAZDA3
- 2022 MAZDA MX\-30 PHEV

## Other bulletins for the same vehicles and component

- [SA\-017\-24a](/bulletins/10254190.md), 2024-05-04, Service bulletin: EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING; LATCHES/LOCKS/LINKAGES. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code \(OTP\) during the MyMazda App Connected Vehicle enrollment. 2. Remote function\(s\) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF Climate Control
- [09\-023\-24](/bulletins/10254183.md), 2024-05-04, Service bulletin: ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. Some customers may experience one or both of the following symptoms while locking and unlocking the doors works fine using the remote transmitter. Symptom 1: The touch sensor of the front door outer handle does not lock the doors after rain and/or car washing, even though unlocking is possible. Symptom 2: The touch sensor of the front door outer handle does not unlock the doors.
- [09\-022\-24](/bulletins/10254088.md), 2024-05-03, Service bulletin: ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. Some customers may complain that the power liftgate \(PLG\) may open unintentionally while the vehicle is parked or stopped. Due to the shape of the 7th generation remote transmitter, the power liftgate button may be long pressed unintentionally in a pocket or a bag. To eliminate this concern, the keyless control specification has been modified. The button press time has been increased from 0.5 seconds to 1 second.
- [09\-006\-24](/bulletins/10251363.md), 2024-03-06, Service bulletin: STRUCTURE:BODY:HATCHBACK/LIFTGATE; LATCHES/LOCKS/LINKAGES. Some vehicles may exhibit a creaking or clacking noise when operating the power lift gate \(PLG\). The noise may be caused by the following: Creaking noise: Dust and dirt accumulates on the sealing portion of the PLG drive unit, reducing sealing performance. Snow and water may enter the PLG drive unit. Humidity then causes rust inside of the unit, resulting in noise. Clacking noise: Since the grease applied on the spring end of the PLG drive unit is insufficient, interference noise is caused when the spring end interferes with the spring guide. The noise has been eliminated by the following mass\-production changes: Creaking noise: The sealing structure has been modified to prevent dust/dirt from entering the unit. Clacking noise: The production procedure of the PLG drive unit has been modified to apply sufficient grease to spring end.
- [09\-029\-23a](/bulletins/10246137.md), 2023-12-05, Service bulletin: LATCHES/LOCKS/LINKAGES; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Some customers may experience one or both of the following symptoms while locking and unlocking the doors works fine using the remote transmitter. Symptom 1: The touch sensor of the front door outer handle does not lock the doors after rain and/or car washing, even though unlocking is possible. Symptom 2: The touch sensor of the front door outer handle does not unlock the doors.
- [SA\-009\-23F](/bulletins/10240484.md), 2023-08-05, Service bulletin: LATCHES/LOCKS/LINKAGES; EXTERIOR LIGHTING; EQUIPMENT:ELECTRICAL:INFOTAINMENT; ENGINE AND ENGINE COOLING. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code \(OTP\) during the MyMazda App Connected Vehicle enrollment. 2. Remote function\(s\) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
- [09\-029\-23](/bulletins/10240403.md), 2023-08-03, Service bulletin: ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES:DOORS:LOCK. Some customers may experience one or both of the following symptoms while locking and unlocking the doors works fine using the remote transmitter. Symptom 1: The touch sensor of the front door outer handle does not lock the doors after rain and/or car washing, even though unlocking is possible. Symptom 2: The touch sensor of the front door outer handle does not unlock the doors.
- [SA\-009\-23e](/bulletins/10238681.md), 2023-07-05, Service bulletin: ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING; LATCHES/LOCKS/LINKAGES; STRUCTURE. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code \(OTP\) during the MyMazda App Connected Vehicle enrollment. 2. Remote function\(s\) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
- [09\-024\-23](/bulletins/10238670.md), 2023-07-05, Service bulletin: ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. Some customers may experience that the out\-of\-area \(reception area\) type auto lock function sometimes fails. When the front door is being closed with a hand touching one or both of the touch sensors on the front outer handle, the out\-of\-area \(reception area\) type auto lock function may fail. Control software of the LF control unit \(LFU\) has been modified.
- [SA\-009\-23c](/bulletins/10235576.md), 2023-05-04, Service bulletin: LATCHES/LOCKS/LINKAGES; EQUIPMENT:ELECTRICAL:INFOTAINMENT; ENGINE AND ENGINE COOLING. Some customers may complain about any of the following:1. Infotainment Center Display does not provide the Authorization Code \(OTP\) during the MyMazda App Connected Vehicle enrollment. 2. Remote function\(s\) inoperative.Engine Start / Stop,Door Lock / Unlock,Lights ON / OFF. 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".

JSON: [/v1/bulletins/10218727](/v1/bulletins/10218727)

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