Will 2012 Lexus RX 350 lock by itself?


Asked by May 03, 2012 at 07:33 PM about the 2012 Lexus RX 350 FWD

Question type: General

If I walk away and forget to set the alarm/lock my 350, will it lock itself after a certain period of time?

11 Answers


If you push the unlock button and do not open the door within 30- 60- 90 seconds the doors will relock automatically. You can program in one of these times.

4 of 4 people found this helpful.

What about if I walk away from the car and totally forget?


Not exactly sure what you are asking, but here is a PDF of your lock system............ Access System with Elec. Key When unlocking the doors: Deactivates SmartAccess, only accessible using elec. key unlock button. = Off Use SmartAccess (touch door handle) or remote buttons. (Standard)= On 9. Auto Relock Time Adjust When the unlock button on the electronic key is pressed and the doors are not opened: The doors will automatically re-lock in 30 seconds. The doors will automatically re-lock in 60 seconds. (Standard) The doors will automatically re-lock in 120 seconds. 10. Lock/Unlock Answer Back Using the electronic key, the following functions can be programmed: Press the lock/unlock button and the system will not beep. = Off Press the lock/unlock button and the system will beep. (Standard) = On

2 of 2 people found this helpful.

My question: If I drive home, get out of the car, close the car door and go into the house, will the car know to lock itself after a period of time without me doing anything at all?

10 of 10 people found this helpful.

No. The locking event must be overt. I would prefer the option to leave doors open. If I got out for refueling or a quick stop to pick up dry cleaning I don't need the car to be locked nor do I need it locked in my home garage.


The car will not lock without user input....

4 of 4 people found this helpful.

Thank you everyone!

The answers so far doesn't fit my scenario. I have three cars in my garage, a 2010 RX350 a 2009 GS 350, and a 2011 Rava. For no reason at all, not carrying any keys in my pocket, all the cars would self-lock once in awhile. My wife has the same experience. Given that all 3 cars are locked simultaneously, the problem must be related to the remote receivers in the cars. The makers must have incorporated some kind of monitoring function that detects the presence of a possible bulgary. If so, Camery/Lexus need to provide a way to defeat this overzealous annoying protection that I don't need.


It doesn't make any sense, since my car has one key start. It will auto unlock when I open the door, get in, and start it, with car key in my purse. Then, when l left my car, It should Atuo lock with a certain distance or a certain period of time. Otherwise, I have to take out of my car key and lock it. That is how usually German Car works. So inconvenient of lock it myself, since it is one key start. I don't even need to take out my car key when I use the car, but need to when I leave my car. Wierd

1 of 1 people found this helpful.

Most cars will lock the door when you drive off but a car that just locked itself would lead to people being locked out of their car so I can't imagine any auto manufacturer would build in a "lock you out of the car" feature.

My 450h refused to lock with a wireless key inside the car, warning me of the key location (spouse left purse inside car). I haven't investigated whether there's an override for when that's your intention, as I grabbed the purse then locked the car.

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