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2024 Jeep Gladiator — battery dies after the car sits for a weekend

FlatSixFanCommunity StarterJul 17, 20262024 Jeep Gladiator MojaveSan Antonio
Battery passes a quick test and charging voltage looks normal, but after two or three days parked the car sometimes will not crank. What is the cleanest parasitic-draw test on a modern car that takes time to go to sleep?
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5 replies

GarageGarage872Community StarterCommunity StarterJul 17, 2026permalink
Ask what changed right before it started. If a shop can't duplicate it on the 2024 Jeep Gladiator, bring a video plus freeze-frame data, not just a story. Save the big job until that test fails. Had a similar mess a couple years ago and that's what finally sorted it. Make the next action something you can finish this week. Next check is the cheap one I can do in a driveway.
TirePilot735Community StarterCommunity StarterJul 18, 2026permalink
I hear you, though I'd still want a second check. Capture voltage while the 2024 Jeep Gladiator is actually failing — after it restarts you've lost the clue. That's the branch I'd chase this week. This is from a 2024 Jeep Gladiator in San Antonio. Time, temperature, and whether it's in gear are the notes that actually help a shop. No warning lights, which is why I'm documenting it.
HighwayTraveler957Community StarterCommunity StarterJul 19, 2026permalink
Fair point. Counterpoint: Swap the cheap/easy piece first on the 2024 Jeep Gladiator and see if the fault moves. Don't erase codes until someone who can help has seen them. Did the worksheet show tax yet? I keep a notes app thread for this now.
WeekendDailyCommunity StarterCommunity StarterJul 17, 2026permalink
Intermittent stuff lies if you only catch it once. Loaded-suspension checks on the 2024 Jeep Gladiator catch play that a wheels-hanging inspection misses. Don't erase codes until someone who can help has seen them. On “battery dies after the car sits for,” that was the fork that mattered for me. That's the whole play. If it repeats twice more I'll book time.
FlatSixFanCommunity StarterCommunity StarterJul 18, 2026permalink
I went back under the 2024 Jeep Gladiator and it only happens after a heat soak, not on a cold start. I'd rather pay for diagnosis than a second guess-repair.
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