[SocalSilverTaco]

... 08 Tacoma DC LB ... At the time of purchase (11/07) dealer offered their installed alarm, which I declined and they deactivated.

At the carwash today, my Tacoma honked horn/blinked DTRLS about 3 times when being started and driven off of the wash line.

Anything to be concerned about?

 

[TRDDCAB4x4]

Maybe gettin' burned by the dealer, paying for something you didn't want might be a concern.

 

[el_smurfo]

Seems like an expensive proposition to install an alarm, then "deactivate it". If I were you, I'd try the RS3200 programming procedure below to see if you can activate this feature of the alarm:

programming option allows you to set the doors to lock when when the key is turned on, and unlock when the key is turned off.

* Open the driver's door. Remove the key from the ignition switch.
* (Complete these steps within 30 seconds)
1. Insert the key into the ignition switch.
2. Close, then open the driver's door 2 times.
(SHUT - OPEN - SHUT - OPEN)
3. Turn the key from LOCK to ON 5 times, ending at ON
(LOCK - ON - LOCK - ON - LOCK - ON - LOCK - ON - LOCK - ON)
* Programming option (select one of the following).
1. [Ignition controlled lock ON] Close the driver's door.
2. [Ignition controlled lock OFF] Close the driver's door twice, leaving it closed.
(SHUT - OPEN - SHUT)
* Turn the key to LOCK. The programming is complete. If programming did not occur, start over.

 

[SocalSilverTaco]

Reviving a long-dead thread ... This has happened a total of four or five times times now.


The last incident was two weekends ago. Truck was sitting unmolested and horn honks with lights flashing. Any thoughts?

 

[Bitter]

Do any of your electric door locks work weakly or not work? It's possible that the lock isn't locking totally and it's setting itself off. This happened to my Celica a few times before the driver side lock actuator failed completely, it would lock barely and sometimes the alarm would sound for seemingly no reason, once it stopped working and I had to lock it manually it never happened again and never has happened since rebuilding the door lock actuators with new motors.

 

[MikeyD25]

If you have an alarm in your truck it could be the hood contact/trigger acting up.

I've been on a few Toyota forums that discuss this - my own experience was with my 2nd gen '06 Highlander, alarm would sound for no apparent reason at all and at all times of day/night after having it for 2 years. Got rid of the thing before fixing it.

I read that people in similar situations isolated it to the hood and replaced or shunted the switch to alleviate the problem.


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