BLIS fault at startup

[DLav8r]

Happened twice today intermittently after getting in and starting up. Truck dispays blis and cross traffic alert fault. Took a quick check of tail lights and do not see any damage. Only thing I can think of is I washed out the bed after mulch this weekend and maybe some water got in somewhere it shouldn’t have? I didn’t go that crazy with the water..no high pressure etc. The truck Just rolled over 1000 miles.

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