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.
2007 Mazda 5 L4-2.3LFACTORY OEM SERVICE PROCEDURE
Keyless Entry Transmitter Battery: Service and Repair
TRANSMITTER BATTERY REPLACEMENT
Retractable Key Type
1. Insert a small screwdriver into the slot and push the tab to remove the key from the transmitter.
2. Insert a small screwdriver into the slot and gently pry open the transmitter.
3. Remove the battery.
4. Put in the new battery (CR1620) with the positive pole (+) facing down.
5. Align the front and back covers and snap the transmitter shut.
Battery specification
Lithium CR1620 x 1
NOTE: The batteries will last about 2 years when used 10 times a day.
6. Install the key to the transmitter.
Retractable Key Type
1. Insert a small screwdriver into the slot and push the tab to remove the key from the transmitter.
2. Insert a small screwdriver into the slot and gently pry open the transmitter.
3. Remove the battery.
4. Put in the new battery (CR1620) with the positive pole (+) facing down.
5. Align the front and back covers and snap the transmitter shut.
Battery specification
Lithium CR1620 x 1
NOTE: The batteries will last about 2 years when used 10 times a day.
6. Install the key to the transmitter.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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