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Drive mode not available

OP
OP
PatagonianMara
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PM
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Jan 19, 2025
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2024 Flash
follow-up: the dealer found my 12V battery had low voltage and replaced the battery. This brought back my drive modes. They replaced the 12V battery under warranty. It's hard to believe a well-designed system would eat through a normal lead-acid battery in under a year.

I had an additional problem with my display overheating. During a hot day, doing navigation, with no air conditioning, the screen was uncomfortably hot to touch. I couldn't believe computer equipment could get that hot without self-destructing. There were sensors that registered numerous DTC fault trigger conditions with the display. Were these also do to the low voltage battery? The dealer mechanic could not reproduce.
Ford F-150 Lightning Drive mode not available Ford fault conditions
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