Both my '07 XLE-V6 and '07 TCH have a flashing "Security" light next to the clock when the cars are off and locked.
The XLE has also has a transparent sticker on the driver's side window saying the XLE has a Auto Security System but the TCH has no such sticker.
From my perspective I see no difference between the two cars security.
Neither car has any PIO security option. Everyting is stock as it comes with each's model level features.
What, if any, subtle difference warrants the XLE getting the window sticker and the TCH not?

TCH = engine immobiliser
XLE = Toyota Theft Deterrent System (hence the sticker).


In other words, the XLE has an alarm system and the TCH doesn't.

Mods: EV mod, VVT-i emblem, sport pedals, OEM cargo mat, JDM Prius interior footwell lighting, Sylvania Silverstars 9003ST, DICE iPod kit, OEM all-weather mats, TomTom ONE v2, LED licence plate lights.

Hmmm, I wonder what my TCH was doing with the horn beeping and lights flashing?

Seriously, I've set off the TCH factory alarm - so I know it has one! I had locked the car with the drivers window down. A few hours later I went out to the car without my keys and just reached in and opened up the car. About 10-15 seconds later the horn and lights started going off. I had to go get the keys to silence the ruckus.

The XLE also has the Engine Immobilizer.

I got Security system in my TCH. It wasn't factory installed, dealer installed it. Stickers were given to me separately.

Yours must have non standard equipment, maybe dealer or port installed, because mine won't sound alarm unless panic button is pressed.

+1 I can even have my windows down and my doors locked and reach inside and no alarm will sound.

If I do, I did not pay for it! I don't have any line items on the sheet that lists all the features and options that came with the car, or a manual for a car alarm. I'll do some testing and see how long it takes for the TCH to arm it's alarm.

I've also noticed if I unlock the car and don't open a door, after about a minute or so, the car relocks itself!

The auto-relock is part of the remote keyless entry system and has nothing to do with having an alarm or not.



Dunno.. maybe you have an alarm system installed (Toyota or not). Some dealers do ship TCHs with alarm systems.

Mods: EV mod, VVT-i emblem, sport pedals, OEM cargo mat, JDM Prius interior footwell lighting, Sylvania Silverstars 9003ST, DICE iPod kit, OEM all-weather mats, TomTom ONE v2, LED licence plate lights.

I never thought I'd be posting to this thread by my non-existant TCH car alarm went off about an hour ago. Beeping horn and flashing lights.

We were sitting in the car. I had just shutdown the system, but instead of getting out I cycled the power button to "on" to get a last look at the instrument display. While I was cycling the DISP button the alarm went off! I had no idea what happened nor what to do. I cycled the power switch and it finally stopped.

I don't know what this is, since no alarm system was on the invoice. I've got no experience with car alarms -- my last two cars had just the passive engine shut-off variety. It has me spooked because I don't know what I did or how to avoid it in the future.