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.
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HOMESERVICE MANUALSTOYOTA2007HIGHLANDER 2WD V6-3.3L (3MZ-FE)REPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYKEYLESS ENTRY TRANSMITTERKEYLESS ENTRY TRANSMITTER BATTERYSERVICE AND REPAIR
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)
Keyless Entry Transmitter Battery: Service and Repair
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)SECTION Service and Repair
REPLACEMENT
1. REMOVE TRANSMITTER BATTERY
NOTE: Special caution should be taken when handling each of these precise electronic components.
a. Using a coins, or other flat object, open the transmitter case.
NOTE: Do not forcibly open the cover.
b. Remove the discharged transmitter battery using a ballpoint pen. Insert the tip of the ballpoint pen in the guide groove and lift out the battery as shown in the illustration.
NOTE:
- Do not push the terminals with your finger.
- Do not forcibly pry up the battery (lithium battery).
The terminals may be damaged.
- Do not touch the battery with wet hands. Water may cause rust.
- Do not touch or move any components inside the transmitter because handling the components may interfere with proper operation of the transmitter.
2. INSTALL TRANSMITTER BATTERY
a. Place a new transmitter battery in the transmitter with the positive (+) side up.
Close the transmitter case securely.
NOTE:
- Be sure that the positive side and the negative side of the transmitter battery are matched correctly.
- Be careful not to bend the transmitter battery terminals during installation.
- Keep the transmitter case interior free of dust and oil.
1. REMOVE TRANSMITTER BATTERY
NOTE: Special caution should be taken when handling each of these precise electronic components.
a. Using a coins, or other flat object, open the transmitter case.
NOTE: Do not forcibly open the cover.
b. Remove the discharged transmitter battery using a ballpoint pen. Insert the tip of the ballpoint pen in the guide groove and lift out the battery as shown in the illustration.
NOTE:
- Do not push the terminals with your finger.
- Do not forcibly pry up the battery (lithium battery).
The terminals may be damaged.
- Do not touch the battery with wet hands. Water may cause rust.
- Do not touch or move any components inside the transmitter because handling the components may interfere with proper operation of the transmitter.
2. INSTALL TRANSMITTER BATTERY
a. Place a new transmitter battery in the transmitter with the positive (+) side up.
Close the transmitter case securely.
NOTE:
- Be sure that the positive side and the negative side of the transmitter battery are matched correctly.
- Be careful not to bend the transmitter battery terminals during installation.
- Keep the transmitter case interior free of dust and oil.
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:
- • 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.