Horns going off unprovoked

[Edtreo]

Just took delivery of the Cybertruck this month, and yesterday, after it rained heavily here, the horn kept blaring every few hours, unprovoked. Any quick fix to this issue before Monday when I can take this to the Service Center?

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[mongo]

Just took delivery of the Cybertruck this month, and yesterday, after it rained heavily here, the horn kept blaring every few hours, unprovoked. Any quick fix to this issue before Monday when I can take this to the Service Center?

Looks like a failed horn switch or wire harness. Not sure on how to unstuck it (especially without annoying the neighbors more).

 

[Outdoors]

One could disconnect the pedestrian warning system. Passenger side front wheel well. About five or six screws. Do not cut the wire, just disconnect it.

Yet I'm not sure if you haven't transitioned the horn to the speaker horn and you have a real horn.

I would try thumbwheel reset of the vehicle. Also one could try to disconnect the 48 v battery as well.

Pretty extreme measures minus the reset. Maybe some ear plugs.

 

[Edtreo]

I've tried soft reset and powering off with no avail. Sounds like hardware rather than software. How difficult to disable the pedestrian warning system?

 

[TyPope]

I suppose you are well beyond wiggling the steering wheel horn button...

 

[Outdoors]

I've tried soft reset and powering off with no avail. Sounds like hardware rather than software. How difficult to disable the pedestrian warning system?

To disconnect the external pedestrian warning speaker on a Cybertruck, you must remove the front underhood storage unit or access the speaker through the front passenger-side splash guard, release the connector lock, and unplug the electrical connector.

On a scale of 1 to 10 for somebody that is somewhat handy with their hands, I would say it's about a three and a half.

I just don't know if you have a physical horn before they transition to the PWS horn. I don't know if they stopped putting a real horn in the truck. You might be able to tell where the sound is coming from if it's out of a speaker or if it's actually within the inside of the truck

 

[Edtreo]

To disconnect the external pedestrian warning speaker on a Cybertruck, you must remove the front underhood storage unit or access the speaker through the front passenger-side splash guard, release the connector lock, and unplug the electrical connector.

On a scale of 1 to 10 for somebody that is somewhat handy with their hands, I would say it's about a three and a half.

I just don't know if you have a physical horn before they transition to the PWS horn. I don't know if they stopped putting a real horn in the truck. You might be able to tell where the sound is coming from if it's out of a speaker or if it's actually within the inside of the truck

It's coming from the outside speaker.

 

[Edtreo]

I suppose you are well beyond wiggling the steering wheel horn button...

It would stop if I pull the left lower corner hard, temporarily.

 

[TyPope]

It would stop if I pull the left lower corner hard, temporarily.

I wonder if a text on the Tesla app asking them to temporarily disable the horn would work.

 

[Outdoors]

It would stop if I pull the left lower corner hard.

So it is the steering wheel. Don't get involved unless the 48V is disconnected. Airbag deployment is a very dangerous thing. Especially if one is holding tools in hand.

https://service.tesla.com/docs/Cybertruck/ServiceManual/en-us/GUID-B917A880-973E-43D7-9850-502EC925C759.html#:~:text=Remove Expand All Collapse All,tool(s) is recommended:

 

[Scorpious]

Change the horn sound to something quieter.

 

[mongo]

Change the horn sound to something quieter.

That would help while parked (reverts in drive).

 

[Edtreo]

Change the horn sound to something quieter.

I tried. Only works while parked. When driving it defaults to the loud blaring horn.

 

[Jhodgesatmb]

Just took delivery of the Cybertruck this month, and yesterday, after it rained heavily here, the horn kept blaring every few hours, unprovoked. Any quick fix to this issue before Monday when I can take this to the Service Center?

That seems like an awful lot of alerts.

 

[Blue Oval Ron]

Just took delivery of the Cybertruck this month, and yesterday, after it rained heavily here, the horn kept blaring every few hours, unprovoked. Any quick fix to this issue before Monday when I can take this to the Service Center?

Tron possessed??

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