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 MANUALSTOYOTA2001HIGHLANDER 2WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYKEYLESS ENTRY TRANSMITTERKEYLESS ENTRY TRANSMITTER BATTERYSERVICE AND REPAIR
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)
Keyless Entry Transmitter Battery: Service and Repair
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)SECTION Service and Repair
TRANSMITTER BATTERY
REPLACEMENT
1. REMOVE TRANSMITTER BATTERY
NOTE: Special caution should be taken for handling each component as they are precision electronic components.
a. Using a screwdriver, remove the cover.
NOTE: Do not pry out the cover forcibly.
HINT: Push the cover with a finger as shown in the illustration, so that there becomes clearance, then pry out the cover from that clearance.
b. Remove the transmitter.
c. Remove the battery (lithium battery).
NOTE:
- Do not push the terminals with a finger.
- If prying up the battery (lithium battery) forcibly to remove, the terminals are deformed.
d. Install a battery (lithium battery) as shown in the illustration.
NOTE: Face the battery upward. Take care not to deform the terminals.
2. INSTALL TRANSMITTER BATTERY
a. Assemble the transmitter to the key plate and the cover.
REPLACEMENT
1. REMOVE TRANSMITTER BATTERY
NOTE: Special caution should be taken for handling each component as they are precision electronic components.
a. Using a screwdriver, remove the cover.
NOTE: Do not pry out the cover forcibly.
HINT: Push the cover with a finger as shown in the illustration, so that there becomes clearance, then pry out the cover from that clearance.
b. Remove the transmitter.
c. Remove the battery (lithium battery).
NOTE:
- Do not push the terminals with a finger.
- If prying up the battery (lithium battery) forcibly to remove, the terminals are deformed.
d. Install a battery (lithium battery) as shown in the illustration.
NOTE: Face the battery upward. Take care not to deform the terminals.
2. INSTALL TRANSMITTER BATTERY
a. Assemble the transmitter to the key plate and the cover.
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.