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.
2012 Scion tC L4-2.5L (2AR-FE)FACTORY OEM SERVICE PROCEDURE
Transmitter Battery (W/ Smart Key System)
DOOR LOCK: TRANSMITTER BATTERY (W/ Smart Key System): REPLACEMENT
NOTICE:
Take extra care when handling these precision electronic components.
1. REMOVE TRANSMITTER BATTERY
(a) Push the release hook knob and extract the emergency key.
(b) Insert a precision screwdriver into the gap and turn the screwdriver to detach the transmitter housing cover.
Text in Illustration
HINT
Tape the screwdriver tip before use.
(c) Remove the battery (lithium battery: CR1632).
NOTICE:
* Do not push the terminals with your 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 interfere with proper operation.
* When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical transmitter from being damaged.
2. INSTALL TRANSMITTER BATTERY
(a) Install a new battery (lithium battery: CR1632) with the positive (+) side facing upward as shown in the illustration.
NOTICE:
* Do not bend the transmitter battery electrode during insertion.
* Keep the transmitter cover interior free of dust and oil.
* When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical transmitter from being damaged.
(b) Install the transmitter housing cover by pressing down on it as shown in the illustration.
(c) Insert the emergency key into the transmitter.
(d) Press one of the transmitter switches and check that the LED illuminates.
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.