Not sure whether this has happen to anyone here before. last week i brought my car for a car wash. after i got the car back from them i noticed the message right door open appeared on the dash but my door was closed.this had never happened before.did anyone know what is going on?

 

if i were you i would try doing a dash reset. if that doesnt work go to lexus it might be a program error.

 

it could be the button in the door jamb that the door presses when it closes. my front driver side door button was acting up on me. i noticed that when i opened the door, the interior lights would sometimes not turn on or they'll turn on and then turn back off and then on and off again. i ended up swapping the button with the rear driver side door since i rarely use that door.

 

^^ that's happened to my car when I first got it. Whenever I made a sharp turn my dome lights would turn on and the message would turn on saying that my door was open. I took it to the dealer and it was the button so they replaced it for free.

 

I just got a call from lexus and they said they replaced the door switch with a new one but the message still on. they said because i got the led puddle light and the trunk light connected to the door and that cause not enough voltage. is it make sense?

 

I'm no expert, but when I was installing my alarm upgrades, I played with the door switches allot and they appear to be connected (with low voltage) to an electric control unit which in turn controls the lights. This is unlike older cars which ran the door light power through the door switch, physically opening and closing the light circuit. This means your door switches have no physical connection to the puddle light, or trunk lights.

But this is all hpothetical, as I don't have electrical diagrams in front of me to verify any of this.

 

Although...The improper voltage load from the LEDs could possibly damage the electronic control unit. But with a lower voltage draw, the chances become slimmer. It hasn't happened in my car, I've got 6000k vleds everywhere