# Too many collision, enable to complete a Zone **URL:** \ **Category:** Support & Solutions\ **Created:** [August 24, 2026, 1:47am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354 "2026-08-24T01:47:34Z")\ **Posts on this page:** 19\ **Page:** 1
**Author:** ![yves.lavoie](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/yves.lavoie/32/968_2.png) [@yves.lavoie](https://forum.yarbo.com/u/yves.lavoie)\ **Post date:** [August 24, 2026, 1:47am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/1 "2026-08-24T01:47:34Z")
Help, I need help. Last year (summer time) it took some time to configure properly my Yarbo with the right zone and the right path. But, at the end, everything was really fine. But this year.. it’s quite a mess. I don’t what happens but my yarbo is not able to compete a zone. It is always a ton a messages about collisions, and “Yarbo bypasses an obtacle”… but there is not obtstacle.!!! I have even signs of collision in area where the Yarbo did not goes yet.. It is spinning on itself, It is making “8” design.. grrr Is someone has any idea about the problem? What should I do? I would really appreciate to get my last summer running yarbo.. ---
**Author:** ![B-Mod](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/b-mod/32/292_2.png) [@B-Mod](https://forum.yarbo.com/u/B-Mod)\ **Post date:** [August 24, 2026, 1:56am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/2 "2026-08-24T01:56:12Z")
Collisions where there are none, could be a failing front bumper, and the obstacle stuff could be false vision, or dirty cameras. ---
**Author:** ![bryan.wheeler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bryan.wheeler/32/215_2.png) [@bryan.wheeler](https://forum.yarbo.com/u/bryan.wheeler)\ **Post date:** [August 24, 2026, 1:58am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/3 "2026-08-24T01:58:03Z")
You may have a failed bumper as B-Mod mentioned. You can follow this article to see if that helps clear up the issue and confirm it. I’d get a ticket opened either way. > **[Persistent "Collision Occurred" Error on Lawn Mower Module](https://wiki.yarbo.com/en/faqs/collision-occurred)** > > If you're seeing a persistent "Collision Occurred" message, it may be due to a malfunctioning bumper sensor. This article explains how to identify the issue and what steps to take, including a video guide to help with troubleshooting. ---
**Author:** ![Yarbo-Forum](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/yarbo-forum/32/126_2.png) [@Yarbo-Forum](https://forum.yarbo.com/u/Yarbo-Forum)\ **Post date:** [August 24, 2026, 10:05am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/4 "2026-08-24T10:05:59Z")
Hi there, could you please submit a support ticket regarding this issue so our team can further investigate? As our community members mentioned, the collision issue may be related to a bumper issue. You can follow the troubleshooting steps in the above article to perform an initial check. For the false obstacle detection, it may be caused by false vision detection issues. You can try switching the obstacle avoidance mode to Gentle Contact to see if it improves the situation. Please remember to set No-Go Zones for any areas or objects you want to protect when using Gentle Contact mode to avoid potential damage. Please keep us updated with your results, and we’ll continue to help troubleshoot this with you. ---
**Author:** ![yves.lavoie](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/yves.lavoie/32/968_2.png) [@yves.lavoie](https://forum.yarbo.com/u/yves.lavoie)\ **Post date:** [August 30, 2026, 3:02am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/5 "2026-08-30T03:02:14Z")
Ok, I took few time to perform different tests. I changed different parameters one by one with always the same result. At the end, I finally change the one for “Gentle contact” and bingo…my Yarbo is back. It works. However, I don’t understand why with the “recommended “ option the behaviour is so strange. During my tests I observed that it was creating red spot, like collision, many many red spots. And often not even closed to my Yarbo. At the end, all those red spots forms a kind of a huge no go zone…. Strange… really strange. Anyway… it’s work now. Thank for the clue about the Gentle contact ![IMG_1256](https://canada1.discourse-cdn.com/flex007/uploads/yarbo/original/2X/9/95a6386bdfc855f451e7d1510345b3b490bc25bd.png) ![IMG_1255](https://canada1.discourse-cdn.com/flex007/uploads/yarbo/original/2X/6/68769c769b0d9d1dddbbb9bc41fe6a2a0bfe5b39.jpeg) ![IMG_1257](https://canada1.discourse-cdn.com/flex007/uploads/yarbo/original/2X/d/d3c987d72608776444ce150410808775bff98a6b.jpeg) ---
**Author:** ![bryan.wheeler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bryan.wheeler/32/215_2.png) [@bryan.wheeler](https://forum.yarbo.com/u/bryan.wheeler)\ **Post date:** [August 30, 2026, 3:59am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/6 "2026-08-30T03:59:56Z")
The red is a point cloud detection from vision. Sounds like it was falsely detecting obstacles. If the grass is taller, tall weeds, etc, then this can lead to the false detections. Gentle contact (bumper only) will let it get that grass cut down. If you have it cut and are routinely cutting afterwards, you may be able to try vision again and see if it improves for you. ---
**Author:** ![ben.karrow](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/ben.karrow/32/3989_2.png) [@ben.karrow](https://forum.yarbo.com/u/ben.karrow)\ **Post date:** [August 30, 2026, 12:01pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/7 "2026-08-30T12:01:20Z")
That’s super bad. I have never seen it that wonky. ---
**Author:** ![bjs.pdx](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bjs.pdx/32/4335_2.png) [@bjs.pdx](https://forum.yarbo.com/u/bjs.pdx)\ **Post date:** [August 30, 2026, 5:24pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/8 "2026-08-30T17:24:00Z")
I’m having similar problems today. Turned off border obstacle detection for gentle contact only. It was still “detecting” obstacles outside the area boundary. ---
**Author:** ![B-Mod](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/b-mod/32/292_2.png) [@B-Mod](https://forum.yarbo.com/u/B-Mod)\ **Post date:** [August 30, 2026, 5:28pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/9 "2026-08-30T17:28:32Z")
I gave up and turned everything off, such a shame, but that is the only way to get it to mow everything. ---
**Author:** ![bjs.pdx](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bjs.pdx/32/4335_2.png) [@bjs.pdx](https://forum.yarbo.com/u/bjs.pdx)\ **Post date:** [August 30, 2026, 5:33pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/10 "2026-08-30T17:33:20Z")
This is my settings, did I miss something? ![IMG_1424](https://canada1.discourse-cdn.com/flex007/uploads/yarbo/original/2X/7/7b87b1c6a8d49ad47ec74dddcf4da947b6303d85.jpeg) ---
**Author:** ![B-Mod](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/b-mod/32/292_2.png) [@B-Mod](https://forum.yarbo.com/u/B-Mod)\ **Post date:** [August 30, 2026, 5:34pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/11 "2026-08-30T17:34:49Z")
Click on gentle contact, be sure to turn off ultrasonic sensors if you haven’t already. ---
**Author:** ![bjs.pdx](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bjs.pdx/32/4335_2.png) [@bjs.pdx](https://forum.yarbo.com/u/bjs.pdx)\ **Post date:** [August 30, 2026, 6:43pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/12 "2026-08-30T18:43:47Z")
Gentle contact is enabled and ultrasonic should be off. ---
**Author:** ![bjs.pdx](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bjs.pdx/32/4335_2.png) [@bjs.pdx](https://forum.yarbo.com/u/bjs.pdx)\ **Post date:** [August 30, 2026, 11:28pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/13 "2026-08-30T23:28:17Z")
![IMG_1425](https://canada1.discourse-cdn.com/flex007/uploads/yarbo/original/2X/e/ed24fd9769744b447503294259e2d781af53f676.jpeg) ---
**Author:** ![Yarbo-Forum](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/yarbo-forum/32/126_2.png) [@Yarbo-Forum](https://forum.yarbo.com/u/Yarbo-Forum)\ **Post date:** [August 31, 2026, 9:25am UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/14 "2026-08-31T09:25:41Z")
Hi there! If you’re using Gentle Contact with both the ultrasonic sensors and Boundary Obstacle Avoidance disabled, Yarbo shouldn’t be detecting obstacles outside the boundary. Could you please submit a support ticket for this so our team can take a closer look at what’s happening? ---
**Author:** ![bjs.pdx](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bjs.pdx/32/4335_2.png) [@bjs.pdx](https://forum.yarbo.com/u/bjs.pdx)\ **Post date:** [October 23, 2026, 1:53pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/15 "2026-10-23T13:53:48Z")
So, I was running my mower with Gentle contact on and other methods off and the core collided with something and broke off the HaLow antenna. Yarbo sent a replacement and seemed like I was on the way to getting things going. Then, while trying to replace the antenna base, one of the power connectors under the hood broke, lost the retaining clip. Yarbo agreed this was a difficult repair and agreed to send a replacement core. Haven’t heard anything since. Been about a week. Ticket 246269. ---
**Author:** ![steve](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/steve/32/816_2.png) [@steve](https://forum.yarbo.com/u/steve)\ **Post date:** [October 23, 2026, 2:17pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/16 "2026-10-23T14:17:46Z")
Replacement cores have been backlogged, lately. It may be a bit. ---
**Author:** ![B-Mod](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/b-mod/32/292_2.png) [@B-Mod](https://forum.yarbo.com/u/B-Mod)\ **Post date:** [October 23, 2026, 2:24pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/17 "2026-10-23T14:24:42Z")
Seems a lot of things are back logged lately. I am waiting on 2 track drives for weeks now, they have not shipped yet. I am not too concerned as my unit still works, so not the end of the world. ---
**Author:** ![bjs.pdx](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bjs.pdx/32/4335_2.png) [@bjs.pdx](https://forum.yarbo.com/u/bjs.pdx)\ **Post date:** [October 23, 2026, 2:41pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/18 "2026-10-23T14:41:39Z")
Not very reassuring. Really need a working core. ---
**Author:** ![B-Mod](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/b-mod/32/292_2.png) [@B-Mod](https://forum.yarbo.com/u/B-Mod)\ **Post date:** [October 23, 2026, 3:00pm UTC](https://forum.yarbo.com/t/too-many-collision-enable-to-complete-a-zone/7354/19 "2026-10-23T15:00:55Z")
Ask the question of needing shipping info in your ticket, that usually helps get stuff started in motion.