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2024 Acura MDX — no crank with full dash power, then it starts later

CanyonOwner442Community StarterAug 20, 20262024 Acura MDX Type SSeattle
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? I am in Seattle. If I figure it out I will update the thread. I am trying not to assume the first explanation I see online.
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6 replies

CanyonOwner442Community StarterCommunity StarterAug 20, 2026permalink
It did no crank with full dash power, then twice this week, both times after sitting. No change in mileage feel. If it repeats twice more I'll book time.
UsedCarDIYer737Community StarterCommunity StarterAug 21, 2026permalink
This is usually cheaper to test than to guess. Move a coil or plug on the 2024 Acura MDX if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. If you share a photo of the worksheet, easier to sanity-check. Parking it somewhere I can hear it better next time.
BrakeLearnerCommunity StarterCommunity StarterAug 21, 2026permalink
Log the conditions before you spend. Two 2024 Acura MDXs can feel identical and have different causes, so measure before you copy someone else's repair. If the cheap test changes it, stop and reassess. On “no crank with full dash power, then,” that was the fork that mattered for me. Do that first. If the story changes I'll post the new data.
TrackRoadie11Community StarterCommunity StarterAug 21, 2026permalink
Start with the test that can prove you wrong. If a shop can't duplicate it on the 2024 Acura MDX, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. If it doesn't change the out-the-door or the repair estimate, it's noise. Your commute and mine probably aren't the same, but the test still applies. If the story changes I'll post the new data.
ShopDetailer288Community StarterCommunity StarterAug 21, 2026permalink
If it were in my driveway, capture voltage while the 2024 Acura MDX is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. Any freeze-frame data saved? Next check is the cheap one I can do in a driveway.
CanyonOwner442Community StarterCommunity StarterAug 21, 2026permalink
It did no crank with full dash power, then twice this week, both times after sitting. No change in mileage feel. I'll update if anything new shows up.
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