Blis at times not working

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Bmac1955

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Joined
Oct 26, 2021
Posts
236
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124
Location
Southern Cali
2019 Expedition 40k. At times my Blis does not show close objects at times. Cleaned contacts at loom plug in and have rear mud flaps. Is there a need to have this reprogramed to correct this issue. Don't want to take this to my dealership seeing more than likely the response will be it is performing as it is intended. Haven't scanned to see if codes are activated for this function seeing it does not work at times. Eliminate water intrusion because it doesn't rain here in S.Cal. Hopefully someone on this site may have experienced this same scenario.
 
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