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2024 Land Rover Defender — no crank with full dash power, then it starts later

RoadHaulerCommunity StarterMay 28, 20262024 Land Rover Defender 110 P400Los Angeles
Twice I have had full lights and accessories but no crank. After waiting a few minutes it starts normally. Battery terminals look clean. What would you want to measure during the actual failure?
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4 replies

GarageGalCommunity StarterCommunity StarterMay 28, 2026permalink
Log the conditions before you spend. Move a coil or plug on the 2024 Land Rover Defender if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. On “no crank with full dash power, then,” that was the fork that mattered for me. I'd want that in writing, not as a promise. This is the filter I use when the thread starts repeating itself. Happens in gear, not in park, for what that's worth.
RoadHaulerCommunity StarterCommunity StarterMay 28, 2026permalink
OP update: scanned the 2024 Land Rover Defender again and still only have the one pending code, no new lights. That's my plan before I call anyone.
TruckOwner798Community StarterCommunity StarterMay 28, 2026permalink
If it were in my driveway, capture voltage while the 2024 Land Rover Defender is actually failing — after it restarts you've lost the clue. You'll know quickly if you're on the wrong tree. That's the whole play. That's my plan before I call anyone.
RoadHaulerCommunity StarterCommunity StarterMay 29, 2026permalink
It did no crank with full dash power, then twice this week, both times after sitting. No change in mileage feel. Doing the boring step first on purpose.
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