2021 front end cruise control sensor
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Cross-Country
Joined: Nov 2018
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2021 front end cruise control sensor
My son in law is considering a 2021 expedition max that i would call "a builder". It was in a front end crash and has been fixed. We have seen before and after pictures. Left front fender was not sctracted. Hood , front grill area and rf fender. They are telling him that the front sensor was replaced. from the pictures I don't qustion that. They are not able to get the cruise to work and believe it needs reprogramed at a dealership. That is also believable since signal was broken. I have not handled anything this new , but it makes sense to me. Is there something that we may be overlooking. It is about 4 hrs away so we are trying to get a little homwork done first.
Thank you for your help
Thank you for your help
Logistics Pro
Joined: Jan 2010
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There is a good probability that if it has adaptive cruise, and the radar was replaced, that it needs to be calibrated/programmed at a dealer or someone with the computer functionality who can do it. If that radar isn't functional, the cruise will absolutely not work. Ran into this a few times on my wife's Expedition, the mounting seems to be a weak point in the system - the first time it happened my FIL had borrowed it, gone through a touch-style car wash, and the radar came out of its mount and the cruise shut off. It is also susceptible to ice build-up if you live in a northern climate - ice build up will interfere with the signal and make it turn off for a while until the ice is removed.
Logistics Pro
Joined: Jan 2010
Posts: 4,094
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That would be a good question about a 2021, but I know on my wife's 2024, if there is a fault with the radar, NO cruise will work, even if you go in and shut off adaptive cruise. Which is pretty darn annoying.
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Joined: Jan 2025
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From: White Bear Lake
It 100% has to have the vehicle programmed for the new sensor/module.
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averagef250
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