Theft Deterrent System
) I was under the impression that if you use the automatic door lock feature, that when you walk away from the car and the doors lock, that the theft deterrent system is also activated. Ditto if you use the FOB to manually lock the doors. However, the owner's manual says; "Open the door. Lock the door with the 'power door lock switch.' Remove the keyless access transmitter from inside the vehicle and close the door.:So do you have to use the "power door lock switch" to activate the system or is this another option to using the FOB?






The reason I know is because I recently tried using my key to unlock the back hatch. The doors had been locked with the auto lock process. The alarm did go off when the back hatch popped open. I had to use the fob to silence the alarm.






Use one of the three following items listed here to arm
the system:
• Press the lock button on the keyless access
transmitter.
• Open the door. Lock the door with the power door
lock switch. The security light should flash. Remove
the keyless access transmitter from inside the
vehicle and close the door. The security light will
stop flashing and stay on. After 30 seconds, the light
should turn off.
• The vehicle can be programmed to automatically
lock the doors and arm the theft-deterrent system
when you exit the vehicle. See DIC Vehicle
Personalization on page 3-68.
Now, if a door or the hatch/trunk is opened without the
keyless access transmitter, the alarm will go off. Your
horn will sound for two minutes, then it will go off to save
battery power. Your vehicle will not start without a keyless
access transmitter present.
The theft-deterrent system will not arm if you lock the
driver’s door with the power door lock switch after the
doors are closed.
If your passenger stays in the vehicle when you leave
with the keyless access transmitter, have the passenger
lock the vehicle after the doors are closed. This way the
alarm will not arm, and your passenger will not set it off.
Your vehicle is equipped with a theft-deterrent alarm
system.
With this system, the
security light will flash when
the door is open and locked
with the power door lock
switch.
Open the door. Lock the door with the 'power door lock switch'.
However, when I go on a trip, I use the latter, i.e. I manually lock the door with the power door lock switch. Reason: there could be someone watching me leave the car who has a sophisticated code grabber. Once I'm out of site, my C6 is his. (I don't like using the AUTO mode.)
I know the alarm systems in modern day cars are continually changing codes to prevent this, but the thieves always seem to be one step ahead. I just won't take the chance.
Point in case: Someone I know went to an Auto car show and watched in utter amazement as someone demonstrated starting a vehicle with hand tools. I don't know the manufacturer, but starting a vehicle in this day and age without the "key" using hand tools is pretty sophisticated. Now if it was a 60's car ......
GM needs to make a minor improvement here: If you set the alarm, and come back later only to find your key FOB is inoperative for one reason or another, you have to open the hatch with the key and then pull the chain. Off goes the alarm. The only thing you can do is rush around to get in the car, and plug the FOB into the glove box and hit the Start button. No pressure

This means that the hatch is not on the alarm circuitry. It should be, and using the key to unlock the hatch should turn off the alarm.
M...
Thank you for the information. I was pretty sure all three activated the system, but wanted to make sure.
Jim sorry about the profile. I thought I had filled that out when I originally applied to be a member. Will take care of that immediately.
BTW, my manual (2007) does not say: "Use one of the three following methods to arm the theft deterrent system." At least not on pages 87 and 88 where it explains the system. I specifically looked for that type of language before I posted the question.
Mike, good point about using the door lock to arm the system in a parking lot. That makes sense.
Again, thanks for the information. It's nice to belong to a forum with such knowledgeable and helpful people.
Brad
The Best of Corvette for Corvette Enthusiasts






Use one of the three following items listed here to
arm the system:
• Press the lock button on the keyless access
transmitter.
• Open the door. Lock the door with the power
door lock switch. The security light should
flash. Remove the keyless access transmitter
from inside the vehicle and close the door.
The security light will stop flashing and
stay on. After 30 seconds, the light should
turn off.
• The vehicle can be programmed to
automatically lock the doors and arm the
theft-deterrent system when you exit
the vehicle. See DIC Vehicle Personalization
on page 232.
Now, if a door or the hatch/trunk is opened without
the keyless access transmitter, the alarm will go
off. Your horn will sound for two minutes, then
it will go off to save battery power. Your vehicle will
not start without a keyless access transmitter
present.
88

I wasn't trying to make a big deal out of your profile not having that info. in it. Just wanted to let you know that sometimes the year does make a difference. So those who haven't updated their profile should put the year of C6 in their post if they're talking about a perceived problem.
A few people here will just tell you to look it up in your manual. If I know the answer, I'll ALWAYS provide the answer, as well as quoting the owner's manual page nos. in case the OP needs more information.













Thanks!
Ron H.


















