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.
2011 Toyota Matrix AWD L4-2.4L (2AZ-FE)FACTORY OEM SERVICE PROCEDURE
Keyless Entry Transmitter Battery: Service and Repair
DOOR LOCK: TRANSMITTER BATTERY: REPLACEMENT
1. REMOVE TRANSMITTER HOUSING COVER
(a) Using a screwdriver with its tip wrapped in protective tape, pry open the transmitter housing cover.
NOTICE:
Do not forcibly pry the cover.
2. REMOVE DOOR CONTROL TRANSMITTER MODULE
(a) Using a screwdriver with its tip wrapped in protective tape, remove the door control transmitter module from the transmitter housing case.
NOTICE:
Handle each part with care as they are delicate electrical parts.
3. REMOVE TRANSMITTER BATTERY
(a) Twist the coin in the direction of the arrow in the illustration, and remove the transmitter battery cover.
(b) Remove the battery (lithium battery: CR2025).
NOTICE:
* Do not push the terminals with a finger.
* Do not forcibly pry up the battery. The terminals may become damaged.
* Do not touch the battery with wet hands. Water may cause rust.
* Do not touch or move any components inside the transmitter. It may cease to work.
* To prevent the transmitter from being damaged, be sure to touch a grounded metal surface with your bare hands to discharge any static electricity before replacing the transmitter battery.
4. INSTALL TRANSMITTER BATTERY
(a) Install a battery (lithium battery: CR2025) with the positive (+) side facing upward, as shown in the illustration.
NOTICE:
* Be careful not to bend the transmitter battery electrode during insertion.
* Keep the transmitter cover interior free of dust and oil.
* To prevent the transmitter from being damaged, be sure to touch a grounded metal surface with your bare hands to discharge any static electricity before replacing the transmitter battery.
(b) Install the cover.
5. INSTALL DOOR CONTROL TRANSMITTER MODULE
(a) Install the door control transmitter module into the transmitter housing case.
6. INSTALL TRANSMITTER HOUSING COVER
(a) Install the transmitter housing cover to the transmitter housing case.
Factory Service Tools
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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.