TPM is alarming every 30 seconds since the weather went cold. How do I silence the alarm..... I know how to reset the TPM but that doesn't work.

1. Unlock the car manually. If the alarm remote is not working, use the key directly. Often times opening up the door will stop the alarm. If the driver's side door won't unlock, try the passenger door.

2
Turn on your car. Put the key in the ignition, and turn the car on. If this doesn't turn off the alarm, try turning on and off the dashboard lights a few times without revving up the engine.
3
Utilize common tricks. Factory car alarms have some simple reset protocols to help turn off an alarm. Most of the tricks rely on using the key in the door; simply put, a lot of factory car alarms have a door sensor, so working with the door might be the go-to for a quick fix.
Put the key in the driver's door and turn it twice to the right, then twice to the left. Then insert your key into the ignition and start the car.
Turn the key into the unlock position and hold it for two seconds before opening the door.

4
Disconnect the battery. If the alarm is still sounding after the initial troubleshooting, you'll want to silence the siren as quickly as possible. Car alarms rely on the electronic component of the vehicle, and disconnecting the battery should both silence the siren and reset your alarm. Open up the hood, locate the battery, and with a wrench, remove the negative terminal. Then reconnect it after a minute has passed.
If it is more easily accessible you can also unplug the wiring harness that connects to the car's horn or siren. If the horn or siren gets unplugged it can no longer make noise.

5
Reset the alarm unit. Locate the alarm and transmitter system; refer to your owner's manual for the exact location. Hit the reset switch or turn it off and on.

6
Remove the alarm fuse. This should both silence and take the alarm out of commission until the fuse is replaced. Find the alarm fuse in the fuse box. Remove it, and put the fuse in a plastic bag. You can store it in your glove compartment for safe keeping.
If you cannot locate the alarm fuse right away, remove fuses to see if the alarm will stop. Doing this will not cause damage to the car, but make sure you return the fuses after you've determined they are not for the alarm.
Some car alarms, when tampered with, prevent a car from starting as an anti-theft function. If you remove the fuse and cannot start the vehicle, you will have to take the car to a mechanic or dealer.

7
Press the "panic" or buttons on your keychain remote to stop the alarm. Because the "panic" button can sound the car alarm, it can also stop it. Pressing "unlock" or the "trunk" button can stop the car alarm because it disarms the car's security system.

8
Seek a mechanic if problems persist. If none these reset methods work, try speaking with a mechanic or dealer. If they can recognize the issues over the phone, the fix might be simple. However, further diagnosis might be needed in person.

https://www.wikihow.com/Disconnect-a-Car-Battery

Most all aftermarket radios have their own fuse next to the wiring harness plug. Depending on the brand, it may only take a few minutes to pull the radio out of it's sleeve to check for the fuse. Usually, you can pop off the trim ring to see what you are working with.

Put the key in the driver's side door and unlock the door. This should disengage the alarm.

Lock and unlock the passenger door with the key to reset the alarm.

see the diagram attached and execute the test for hon:

I take it the key fob doesn't work Try disconnecting the battery for 30 minutes and see if that will reset the alarm. You may need the key fob to reset.

O.k. this is a security feature of your alarm the car now essentially thinks that it is being stolen. In order to fix this issue you need to reset the alarm buy reconnecting the battery and using your electronic alarm sensor if you have one (if this doesn't work get new battery for alarm sensor)

you need to reset alarm/immobiliser.lock car with remote, hold button down for 30 secs,then press/hold down unlock button,should reset.another way is with key in ignition/turned on, press alarm button down and hold for 30 secs.this resets immobiliser.toyota
systems vary..depending on market.

I know a quick fix to get it started but you might think i'm crazy to do this:

My 2003 Dodge ram van 1500 does the same thing. I put a small heater on the driver's side floor blowing the hot air toward the door.
I plug in the heater when I get home from workand let it run all night.
The computer for the alarm is under a kick plate near the driver's door next to the driver's seat on the left side. Once it warms up the alarm; it will shut off the alarm and you can start the motor.