# Service bulletin 15\-004\-20\-3755

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: 10185058
- Published by NHTSA: 2021\-01\-05
- Manufacturer's number: 15\-004\-20\-3755
- Manufacturer's date: 2020\-12\-03
- NHTSA component: ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS; EQUIPMENT ADAPTIVE/MOBILITY; BACK OVER PREVENTION

## NHTSA's summary

Some vehicles may exhibit that both sides \(right and left sides\) of the Blind Spot Monitoring \(BSM\) and Rear Cross Traffic Alert \(RCTA\) system do not work

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185058-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185058-9999.pdf)

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

## Components

Driver assistance, Electrical system, Equipment and accessories, Backup camera, Blind spot detection

## Vehicles listed

- 2020 MAZDA CX\-30
- 2019 to 2020 MAZDA MAZDA3

## Other bulletins for the same vehicles and component

- [SA\-063\-24](/bulletins/11008423.md), 2024-10-04, Service bulletin: LANE DEPARTURE: BLIND SPOT DETECTION. The Blind Spot Monitoring \(BSM\) system can malfunction with the following symptoms if the rear side radar sensors are installed facing the wrong direction. BSM system indicates vehicle on the opposite side. i\-ACTIVSENSE indicator ring will not turn green Rear Cross Traffic Alert \(RCTA\) does not work Rear side radar sensor aiming may fail TPMS DTC\(s\) stored
- [SA\-038\-21](/bulletins/10202763.md), 2021-11-01, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS; EQUIPMENT. The Blind Spot Monitoring \(BSM\) system can malfunction with the following symptoms if the rear side radar sensors are installed facing the wrong direction. BSM system indicates vehicle on the opposite side. i\-ACTIVSENSE indicator ring will not turn green, Rear Cross Traffic Alert \(RCTA\) does not work, Rear side radar sensor aiming may fail, TPMS DTC\(s\) stored.
- [SA\-027\-20f](/bulletins/10182124.md), 2020-11-04, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; BACK OVER PREVENTION; EQUIPMENT. MAZDA CONNECT SYMPTOM TROUBLESHOOTING \(7TH GENERATION VEHICLES\). Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. Index: No. 1 Blank Screen No. 2. Rear View Camera is not displayed No. 3 Rebooting No. 4 Infotainment System Has No Sound No. 5 Commander Switch Does Not Work No. 6 Bluetooth device will not pair No. 7 Incorrect GPS position No. 8 Voice Recognition Does Not Work No. 9 Cannot Make a Hands\-Free Call No. 10 Cannot Play Bluetooth Audio No. 11 How to Check Navi SD Card VIN Lock
- [SA\-027\-20e](/bulletins/10180786.md), 2020-10-05, Service bulletin: BACK OVER PREVENTION; EQUIPMENT ADAPTIVE/MOBILITY. MAZDA CONNECT SYMPTOM TROUBLESHOOTING \(7TH GENERATION VEHICLES\). Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. Index: No. 1 Blank Screen No. 2. Rear View Camera is not displayed No. 3 Rebooting No. 4 Infotainment System Has No Sound No. 5 Commander Switch Does Not Work No. 6 Bluetooth device will not pair No. 7 Incorrect GPS position No. 8 Voice Recognition Does Not Work No. 9 Cannot Make a Hands\-Free Call No. 10 Cannot Play Bluetooth Audio No. 11 How to Check Navi SD Card VIN Lock
- [SA\-042\-20](/bulletins/10173254.md), 2020-04-06, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION. Some customer may experience all of the following when turning the ignition ON under hot weather conditions such as parking under the hot sun for some period of time: • i\-ACTIVSENSE warning light ON \(1\) • Smart Brake Support \(SBS\) indicator light ON \(2\) • "Excessive Camera Temp. Drive Safely" or "Safety and Driver Support Systems Temporarily Disabled" warning messages • DTC B14F9:00 stored in memory DTC B14F9:00 cannot be found on MGSS, therefore repair cannot be performed. DTC\_B14F9:00 is falsely stored instead of DTC B14F0:4B. DTC\_B14F0:4B \[VCM\] \(Forward sensing camera \(FSC\) internal temperature abnormality\) \- FSC detects temperature higher than operation range.
- [SA\-010\-19j](/bulletins/10165352.md), 2019-09-23, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY; EQUIPMENT; ELECTRICAL SYSTEM; LANE DEPARTURE: BLIND SPOT DETECTION; WHEELS. 2019\-2020 MAZDA3 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2019\-2020 Mazda3 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns. Index: PDI fuse, Apple CarPlay / Android Auto Install Kit, Blind Spot Monitoring System \(BSM\), Front Wiper Service Caution, i\-ACTIVSENSE Switch, Traffic Sign Recognition \(TSR\), MAZDA CONNECT Power Function, MAZDA CONNECT Center Display View, In\-Vehicle Digital Owner's Manual, Navigation System, SIRIUSXM Data Service, Power Door Locks, Auxiliary Key, Transmitter Battery Saving Function, Keyless Entry Using Auxiliary Key, Rear Door Child Safety Locks Operation, Link Seat \& Climate Control Temperatures, Seat Warmer Turns OFF, Electric Parking Brake \(EPB\), A/C Air Temperature Is Not Cold, Tire Pressure Monitoring System \(TPMS\), Condition Based Maintenance, M\-MDS \(MDARS\), Part Replacement.
- [SA\-010\-19d](/bulletins/10160576.md), 2019-05-30, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; BACK OVER PREVENTION; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; LATCHES/LOCKS/LINKAGES. The new 2019 Mazda3 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns.
- [09\-021\-19\-3587](/bulletins/10160560.md), 2019-05-30, Service bulletin: BACK OVER PREVENTION; ELECTRICAL SYSTEM; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. On some vehicles. the center display may turn black and/or DTC U0264:00 may be stored in memory when the rear view monitoring system is on after replacing the rear mount camera. This symptom occurs due to a communication error between the new rear mount camera and a specific old CMU software version. When replacing the rear mount camera with a new one, follow the Repair Procedure below to prevent this concern from occurring. DTC U0264:00: Communication error with rear mount camera NOTE: For vehicles with a rear view monitor system with predicted vehicle path assist lines, this TSB is not applicable.

JSON: [/v1/bulletins/10185058](/v1/bulletins/10185058)

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