I hear a quick single “beep” in reverse, what is it?

[TRDBlue]

This started happening after leaving it parked at airport for a week. When my 4Runner sits for awhile off, overnight for example, when I put it in reverse I hear a quick single “beep”. What is that?

 

[VancouverRunner]

Maybe it's lojack? I had it on one of my cars that would beep due to installer error.

 

[Duuuuuuuude]

Are you sure that it's a beep and not a squeak? Mine will do it occasionally under the same conditions, and I'm pretty sure it's the brake pads seating themselves. Nearly every vehicle I've owned does it.

 

[Jivewalker]

might be hill start assist kicking in if you are shifting from reverse to forward while still rolling backwards a little. I'm guilty of that every once in a while and get the beep.

 

[JAXJeremy]

I've heard it before too..completely random and I've never been able to isolate it, but it does sound like a beep.

 

[unsub1]

might be hill start assist kicking in if you are shifting from reverse to forward while still rolling backwards a little. I'm guilty of that every once in a while and get the beep.

This is exactly what I figured it was on mine.

 

[1jzgte]

Happens to me occasionally. My problem? Sometimes when I do a quick open and close of my hatch i keep my hand on the switch. It never leaves the switch as i shut it. So it sort of opens back up a little. It stays close enough to closed that it doesnt give me a instrument light. But as i back out of a driveway or take on an incline, it gives me a short beep and a quick blip on the instrument cluster. Took me forever to figure it out

 

[Dillusion]

x2 on the hatch.

 

[Jonny_04]

This started happening after leaving it parked at airport for a week. When my 4Runner sits for awhile off, overnight for example, when I put it in reverse I hear a quick single “beep”. What is that?

were you able to figure this out? I'm currently experiencing this as well; when the vehicle goes from Park to Reverse i hear a single beep. I think i've narrowed it down to my brakes not fully disengaging or maybe something with ABS?

 

[mbumpus11]

were you able to figure this out? I'm currently experiencing this as well; when the vehicle goes from Park to Reverse i hear a single beep. I think i've narrowed it down to my brakes not fully disengaging or maybe something with ABS?

Like a poster above, I noticed that when I heard the beep it was due to one of the traction controls firing off due to some unknown reason.

Every time I've heard (what I think is) "it", I noticed a flash of the traction control icon on my dash - an orange-y/yellow square flash.

That sound familiar?

 

[1jzgte]

its.... youur... trunk... not... closed... comp..lete....ly..

open the hatch back up and take your hand off the latch and close on any other part of the hatch

 

[20164runner]

Mine does it whenever it sits for a while too. It’s a very low beep. Everything is shut and there are no lights on the dash. Long story short there is nothing wrong. Just ignore it.


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