2011 Tacoma beeping when powered off and parked

KvS

Joined: Dec 11, 2015

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7:11a, 10/6/25

AG

My Tacoma recently started beeping every 1-2 minutes when parked and powered off. Truck seems fine, it's just really annoying.

When I start the truck up, there are no warning lights on the dashboard. I've changed the batteries in both key fobs, and open/closed all windows and doors.

Any ideas of how to fix? I just took it in for 120k service and this conveniently started a few days afterwards.

Naveronski

Joined: Apr 29, 2008

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9:16a, 10/6/25

AG

Sounds like an aftermarket alarm or something similar beeping to let you know it's low on battery.

Do you have anything like an alarm, immobilizer, tracker, etc?

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AgGrad99

Joined: Dec 8, 2003

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11:26a, 10/6/25

AG

It's probably the smoke detector battery getting low.

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1agswitchin4lanes

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In reply to AgGrad99 • 5:54p, 10/8/25

AG

AgGrad99 said:
It's probably the smoke detector battery getting low.

OP had a Toyota Tacoma not an Altima

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1agswitchin4lanes

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8:38a, 10/9/25

AG

Have you tried to isolate the noise?

Obi Wan Ginobili

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9:07a, 10/9/25

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Obi Wan Ginobili

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In reply to 1agswitchin4lanes • 9:07a, 10/9/25

1agswitchin4lanes said:
AgGrad99 said:
It's probably the smoke detector battery getting low.

OP had a Toyota Tacoma not an Altima

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