malfunction

Took my 2020 LCHE to a dealer here in Austin to diagnose an error code that sporadically came on after heavy rains or when the truck was washed/detailed. But now the warning stays on after recent rains and cold weather this week. The diagnosis from the dealer states the part needs to be replaced...

I got stuck in sand, and decided to play with "crawl control" ... first time I'd ever needed low-range ... but low-range would not engage. Later, mechanic diagnosed actuator fault, and (so they say) attempted "manual activation", which also didn't work, so they replaced it: which cost $4001...

We were out camping this past weekend and I managed to run my starter battery flat. Anyway, we were packing up to leave camp Sunday night and I noticed the dome light was dark. Hmmm...so putting the foot on the brake and pressing start...nothing; not even a clicking sound. No problem! I jumper...

Drove my '70 today. The brakes are malfunctioning again. Maybe 200 miles since serviced by some other guy before I go the vehicle. He did a bad job, the petal pulsed right after he was finished. Now it is pulsing and locking up the driver's rear and pulling left when braking with any force...