# Service bulletin SA\-040\-20

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: 10173252
- Published by NHTSA: 2020\-04\-06
- Manufacturer's number: SA\-040\-20
- Manufacturer's date: 2020\-03\-09
- NHTSA component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

Key Transmitter Power Saving Function: When the key transmitter Power Saving Function is turned ON, transmitter battery power consumption is restricted, thereby extending the transmitter battery life. IMPORTANT: • The engine will not start unless the key transmitter is held over the Start Stop button. • Outside door handle lock/unlock touch sensor is inoperative. • Key transmitter indicator lights are inoperative. The key transmitter control functions \(i.e. locking/unlocking door, etc.\) are operational when pressing the transmitter switches, even while the key power saving function is turned ON.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10173252-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10173252-9999.pdf)

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

## Components

Electrical system, Equipment and accessories, 12\-volt battery

## Vehicles listed

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

## Other bulletins for the same vehicles and component

- [01\-007\-23](/bulletins/10237197.md), 2023-06-04, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. The Mazda DCA\-8000 is required for all warranty battery testing. If the Mazda DCA\-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this Service Bulletin to test Mazda vehicle batteries and to generate a Warranty Code.
- [01\-006\-21\-3779a](/bulletins/10200933.md), 2021-09-03, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING. This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the battery periodically according to the repair procedure.
- [SA\-060\-20b](/bulletins/10180793.md), 2020-10-05, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT ADAPTIVE/MOBILITY. When replacing the Body Control Module \(BCM\) in a 2019 Mazda3, it needs to be configured and the instructions in the Workshop manual on MGSS are incorrect. Use the instructions in the Repair Procedure below to configure the new BCM.
- [SA\-059\-20b](/bulletins/10180792.md), 2020-10-05, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. During BCM replacement, MDARS may display a Configuration Error warning message. This may be caused by any of the following:• Poor internet connection • MDARS failure• Low Battery. Perform the BCM Recovery Procedure below to manually configure the BCM.
- [SA\-066\-20](/bulletins/10180717.md), 2020-10-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. When performing vehicle services such as control unit software update, control unit registration/activation, CMU log data retrieval, etc., always do the following: • Use the GR8 battery charger SST to maintain battery voltage. See SA\-063/20. • Use M\-MDS hardware that is in good working condition. CAUTION: If the GR8 is not used or if the M\-MDS hardware is not in good working condition, a control unit failure may occur.

JSON: [/v1/bulletins/10173252](/v1/bulletins/10173252)

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