Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Keyless Entry - Transmitter Battery Replacement Cautions
2011 Mazda 2 L4-1.5LSECTION Keyless Entry - Transmitter Battery Replacement Cautions
Bulletin No: 09-041/10
Last Issued: 08/30/2010
Subject:
KEYLESS ENTRY REMOTE TRANSMITTER (KEY FOB) BATTERY
REPLACEMENT CAUTION
APPLICABLE MODEL(S)/VINS
2011 Mazda2
2004-2011 Mazda3
2006-2010 Mazda5
2003-2011 Mazda6
2007-2011 CX-7
2007-2011 CX-9
2003-2011 MX-5
2004-2011 RX-8
DESCRIPTION
When replacing a keyless entry remote transmitter battery, take caution or transmitter damage may occur.
To avoid damaging the keyless transmitter during battery replacement, make sure to follow the service points shown below.
BATTERY REPLACEMENT SERVICE POINTS
1. Before opening the transmitter for battery replacement, touch a metal object to ground static electricity from your body.
2. Replace the battery with clean and dry hands.
3. Do NOT touch any of the circuitry on the transmitter.
4. Replace with designated battery.
5. Do NOT install the new battery with its polarity reversed.
6. Verify proper operation of the keyless entry remote system.
If keyless entry remote transmitter doesn't work, check battery:
^ Polarity
^ Part number
^ Terminal tension

Disclaimer
Last Issued: 08/30/2010
Subject:
KEYLESS ENTRY REMOTE TRANSMITTER (KEY FOB) BATTERY
REPLACEMENT CAUTION
APPLICABLE MODEL(S)/VINS
2011 Mazda2
2004-2011 Mazda3
2006-2010 Mazda5
2003-2011 Mazda6
2007-2011 CX-7
2007-2011 CX-9
2003-2011 MX-5
2004-2011 RX-8
DESCRIPTION
When replacing a keyless entry remote transmitter battery, take caution or transmitter damage may occur.
To avoid damaging the keyless transmitter during battery replacement, make sure to follow the service points shown below.
BATTERY REPLACEMENT SERVICE POINTS
1. Before opening the transmitter for battery replacement, touch a metal object to ground static electricity from your body.
2. Replace the battery with clean and dry hands.
3. Do NOT touch any of the circuitry on the transmitter.
4. Replace with designated battery.
5. Do NOT install the new battery with its polarity reversed.
6. Verify proper operation of the keyless entry remote system.
If keyless entry remote transmitter doesn't work, check battery:
^ Polarity
^ Part number
^ Terminal tension
Disclaimer
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.