2001 toyota rav4. how do you deactivate the alarm system so i can start the car. dont have the keyless entry key (lost it) just have a regular key. but there is a red button on drivers side to deactivate. need steps to deactivate.

Disarming an Armed System/Silencing an Alarm
If system arming has been requested by the keyless entry transmitter, it must be disarmed.
Important: Using the power door unlock switch or manually unlocking the doors does not disable the CTD armed mode. Also, disconnecting the battery or pulling fuses does not disable the armed mode, since the BCM stores the CTD mode status in memory.
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To disarm the CTD system in arm pending mode, SECURITY indicator flashing and doors open, perform 1 of the following:

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Press the UNLOCK button on the keyless entry transmitter.

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Insert a valid key into the ignition and start the vehicle.

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To disarm the CTD system in the armed mode:

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Press the UNLOCK button on the keyless entry transmitter.

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Insert a valid key into the ignition and start the vehicle.

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To disarm the CTD system when activated, alarming mode.

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Press the UNLOCK button on the keyless entry transmitter.

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Insert a valid key into the ignition and start the vehicle.

Yes. After market remote start kits don't care about keyless entry or alarm systems. You will get a separate key fob to operate the remote starter.

The 'Keyless Entry & Burglar Alarm System" is activated. You must 'Disarm' the system using the Keyless Entry Remove (Key Fob) to "Reset" the system. The reason the engine won't start is due to the burglar alarm - it has a "Starter Kill" circuit which is activated when the alarm is activated. The alarm must be DEactivated to DEactivate the 'Starter Kill' circuit.
Another way to start the engine is to get in the car, put the key in the ignition and turn it to 'ON" and wait 3 to 5 minutes until the emergency flashers stop/turn off. Afterward, you should be able to start the engine. NOTE: This does NOT reset the burglar alarm. It will go off again when you enter the vehicle without using the remote/key fob.

I have the same problem few days ago, and still didn't find any solution. Can any one please help?????5

DEALER

usually after opening the door you can deactivate the alarm by pushing th unlock button or simply insert keyy in ignition and turn it on.

check if their is a fuse for the relay for the starter might be blown

locking and unlocking the drivers door with the key should deactivate the alarm

You can take it back to the dealer, and have them change the battery, or go to Autozone, buy the battery and do it yourself. They can show you how to do it. And which battery it takes. It's not hard to do. Good luck.

The fuse for the alarm is under the hood. Give a good look and you should find it. Once you have pulled it it will deactivate the alarm I am not sure if this is exactly your problem since you said that the car wont start.... but it is worth a try.