How to turn off trunk open warning

i would call it rare. call toyota corporate and ask for a goodwill warranty

 

Are there rubber stoppers when the where the hatch closes, that are height-adjustable? Maybe try adjusting them, reduce the amount they push up?

 

Have you tried the easiest thing, spray some kind of lubricant (white lithium grease) on the latch mechanism? Maybe it's binding and preventing the actuator from sensing its fully closed.

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Hi Rachel, How willing/able are you to DIY? I have a 2014 Prius. An open trunk on mine does not actuate any aural warning. The only warning is the red "door open" symbol on the dash display. This warning only goes out when the trunk is slammed shut. Gently putting into a latched position does not extinguish the light. Does your car have this same light? Is it on while the beeping occurs? Getting access to the lower latch mechanism is fairly easy - you just unbolt what needs to be unbolted, and snap out what parts of the trim are attached by snaps. If you can do this you might then be able to manually force the latch receiver into a closed position - with a large screwdriver - and try to see what contacts are made or un-made.. Any wires leading to/from this latch could also be investigated - detached or shorted - to see what effect that has.

Or you could try pulling each fuse individually until the beeping stops ;-)

Those smarter than me might know if there is a setting accessible by Techstream for options: trunk beeper off or on...

Or exactly where the beeper "speaker" is located. If you find that you can detach one wire and disable it..

If it was my car I would pull fuses one by one ...

 

I probably wouldn't pull a fuse - they tend to be multi-purpose, and you could find other things stop working.

Sorry - I have no idea, but I suspect it's rare - I've read just about every Gen 4 post since I got mine 5¼ yrs ago - and don't recall this before.

As suggested - you could try TOYOTA.

 

I have the '16 Three Touring and just tried an experiment. I put a towel in the trunk latch so that it would not latch. Then I put the car in READY. I got the trunk open warning on the dash as expected, but no beeping. Then I put the car in D and moved it a little since I was still in my garage. There was no beeping at any point. The open trunk warning stays on the dash, and if you clear it with the button, it will return after a short time, but still no beeping. I'm wondering if you're mis-diagnosing the cause as the trunk unlatched?

 

I’m having same issue. Did you figure out?

 

Mine was the weather strips were loose and on the way of the lid latches.