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My smart key battery depleted so I replaced the battery. I…

Customer Question
My smart key battery...

My smart key battery depleted so I replaced the battery. I can start the car but the only way I can lock the doors is by using the manual key. When I push the interior button to lock the doors they just keep unlocking

Mechanic's Assistant: Is this your first time dealing with this issue?

Yes, it was working fine earlier but t I was getting a low battery warning

Mechanic's Assistant: What is the model/year of your Toyota?

2010 venza

Mechanic's Assistant: Are you fixing your Venza yourself? What have you tried so far?

Not much other than replace the battery in the key

Submitted: 8 months ago.Category: Toyota
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Answered in 10 hours by:
12/3/2017
Toyota Mechanic: Matt, Mechanical Engineer replied 8 months ago
Matt
Matt, Mechanical Engineer
Category: Toyota
Satisfied Customers: 23,473
Experience: BEng, Repaired my own cars and others for 20 years, worked in Formula 1 for 10 years
Verified

Hello

try running through this procedure to re-sync the key fob:

Driver’s door open, key removed from ignition switch.
Within 5 seconds:
Insert and remove the key from the ignition switch twice.
Within 40 seconds:
Close and open driver’s door twice.
Insert and remove the key from the ignition switch.
Within 40 seconds:
Close and open driver’s door twice.
Insert the key into the ignition switch and close the driver’s door.
Switch ignition ON and OFF once to program a remote transmitter code whilst retaining the original codes or twice to program a remote transmitter code whilst erasing the original codes.
Remove key from ignition switch:
System should now lock and unlock vehicle once, twice or five times depending which mode has been selected. One to four times, slowly, to indicate number of remote transmitters registered.
Within 40 seconds:
Press and hold LOCK and UNLOCK remote buttons simultaneously for 1.5 seconds
Within 3 seconds:
Press LOCK button.
System should now lock and unlock vehicle once to confirm registration, twice to indicate registration has failed.
Within 40 seconds:
Repeat button procedure to program remaining remote transmitters.
NOTE: To exit programming mode: Open driver’s door. NOTE: A maximum of 4 remote transmitters can be programmed.

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Matt
Matt, Mechanical Engineer
Category: Toyota
Satisfied Customers: 23,473
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Experience: BEng, Repaired my own cars and others for 20 years, worked in Formula 1 for 10 years

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