Lights flash & horn blows long after car is parked jeep liberty 2008

How to Fix Car Horn

Try this site to fix your problem

https://www.youtube.com/watch?v=vWDcT_4rgaw

double posted. wow.
when it beeped, did you look in the display (RPM)
it tells you why?? the VFD or EVIC tells you why.? (rpm dial)
do you park with the alarm on , on the street or a garage?????
if in a garage park and turn alarm off. it does turn off the alarm.
did you bump the panic button?
eg its under your pillow?? LOL or the cat chewed it?
read your other post, it's got lots of answer there.
to find cause.
if the horns stays off, if alarm is off then its not the horn button.

as many will say. there are 4 things that run the horn.
button horn
alarm
door locks.
panic.(part of alarm but not totally)
on my car, i have most themn turned off, like the lamp flashings.
and the horn chirp is off on all my cars, all i get is the door lock click sounds, nice (neighbor friendly)
so turn all all that and see if the horn still fails.

that panic button can fail,
if mind did id pull the fob battery and then use FOB 2.
to see of the FOB fails.

your other post said driving
this one says, parked. 3am clue.

If it did ever work for you, then the problem should be the horn itself, the wiring to the horn, or the sensor/computer that tells the horn to blow.
Otherwise, the whole system may be defective.
God bless your efforts.

does the horn sound when you press the horn switch. if it does not sound replace horn fuse, Or else check brake light switch

Left side dashboard facing the door. Remove the oblong panel.

The fuse panel diagram is in your owners manual, if you don't have one, go to Jeep.com and download it for free.

Fuse Panel Description
Cavity Fuse Description

• 1 15 Amp Blue Horn Relay, Power Sunroof Relay, Power Window Relay
  

• 2 10 Amp Red Rear Fog Lights (Export Only)
  

• 3 20 Amp Yellow Cigar Lighter
  

• 4 10 Amp Red Headlight Low Beam Right

• 5 10 Amp Red Headlight Low Beam Left

• 6 20 Amp Yellow Body Control Module/Power Door Locks
  

• 7 10 Amp Red Left Park Light/Left Tail Lamp/License Plate Lamp
  

• 8 Spare

• 9 10 Amp Red Right Park Light/RightTail Lamp/License Plate Lamp/ Cluster
  

• 10 Spare

• 11 15 Amp Blue Flasher

• 12 15 Amp Blue Stop Lights

• 13 10 Amp Red Body Control Module/ CMTC/Cluster/Pass. Airbag On,Off Indicator, Auto Daylight Mirror/Light Bar Switch (Renegade Only)
  

• 14 10 Amp Red PDC Fuel Pump/AC Clutch, Starter Relay/Engine Controller/Transmission Controller (Diesel Only)
  

• 15 Spare

• 16 20 Amp Yellow Power Outlet (Rear)
  

• 17 15 Amp Blue Rear Wiper

your panel control chip board damage change it (alarm circuit).

I am having the same problem on my 08 wrangler sahara unlimited. I was told it was because of a loose battery connection. I checked and the connections are fine.

check battery connections especially the ground

wiggle the horn on the colum if it stops then the spring on the horn pad has gone bad

The body controller for some reason has lost it's setting most likely. The dealer can reset with their "Star Scan" diagnostic tool. Many settings such as flash on lock or horn sound on lock can be turned on or off.