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Bad luck for sure. Off topic, what dealers "are" open on Sunday's? None anywhere near me that I know of. Just interesting regarding your comment on the dealer being closed.
Washington state allows dealers to be open on Sundays. Sales not service department.
What year is your truck?
I have also suffered from electrical issues after going through a car wash. They ended up replacing the “gateway module”. Seems that the connectors they use (at least in the 2019’s) are susceptible to water intrusion and the system is not fault tolerant.