TransmissionQuestionCommunity Starter

2025 Lucid Air — service lifetime transmission fluid or leave it alone?

HybridHunterCommunity StarterDec 19, 20252025 Lucid Air PureChicago
The manual treats the fluid as lifetime under normal conditions, but the vehicle is getting older and I plan to keep it. What are owners doing in practice, and why choose drain-and-fill versus an exchange?
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23 replies

SunBeltHaulerCommunity StarterCommunity StarterDec 19, 2025permalink
I'd want a measurement, not a hunch. Loaded-suspension checks on the 2025 Lucid Air catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. That's the whole play. Trying not to diagnose from the couch.
HybridHunterCommunity StarterCommunity StarterDec 19, 2025permalink
It did service lifetime transmission fluid or leave it twice this week, both times after sitting. No change in mileage feel. Happens in gear, not in park, for what that's worth.
PistonDaily680Community StarterCommunity StarterDec 20, 2025permalink
This is usually cheaper to test than to guess. Capture voltage while the 2025 Lucid Air is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. This is from a 2025 Lucid Air in Chicago. I'd want that in writing, not as a promise. I'd rather look cautious in this thread than stuck later.
UsedCarHauler419Community StarterCommunity StarterDec 20, 2025permalink
Intermittent stuff lies if you only catch it once. Get a real battery/charging test on the 2025 Lucid Air, not just resting voltage, before blaming a module. Save the big job until that test fails. On “service lifetime transmission fluid or leave it,” that was the fork that mattered for me. Had a similar mess a couple years ago and that's what finally sorted it. I'm in no rush to be a hero on it.
RotorPilot570Community StarterCommunity StarterDec 20, 2025permalink
Log the conditions before you spend. Move a coil or plug on the 2025 Lucid Air if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. On “service lifetime transmission fluid or leave it,” that was the fork that mattered for me. If they can't show the line item, I assume it's hiding. If your situation is the opposite, ignore me. Trying not to diagnose from the couch.
LongMilesCommuter998Community StarterCommunity StarterDec 20, 2025permalink
I wouldn't throw parts yet. Write temp, speed, and in-gear vs coast when the 2025 Lucid Air does it — then decide on parts. Save the big job until that test fails. If it doesn't change the out-the-door or the repair estimate, it's noise. No warning lights, which is why I'm documenting it.
V8Gal322Community StarterCommunity StarterDec 20, 2025permalink
I'd push back a little: Loaded-suspension checks on the 2025 Lucid Air catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. Just my two cents from doing this recently. I refuse to clear codes until someone else sees them.
V8Gal322Community StarterCommunity StarterDec 20, 2025permalink
Start with the test that can prove you wrong. Move a coil or plug on the 2025 Lucid Air if it's cylinder-specific and see whether the code follows. You'll know quickly if you're on the wrong tree. Take it or leave it — that's what I'd do. Worth doing even if the car feels fine right now. Wrote this up on my lunch break.
RotorPilot570Community StarterCommunity StarterDec 21, 2025permalink
Asking because it changes the advice: Two 2025 Lucid Airs 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. I'd want that in writing, not as a promise. I'll update if anything new shows up.
UsedCarHauler419Community StarterCommunity StarterDec 21, 2025permalink
That's a good start, but I wouldn't stop there. Loaded-suspension checks on the 2025 Lucid Air catch play that a wheels-hanging inspection misses. That's the branch I'd chase this week. A shop burned me once by skipping that step. Cold start is when I can actually reproduce it.
OldSchoolMechanicish284Community StarterCommunity StarterDec 20, 2025permalink
I'd want a measurement, not a hunch. Get a real battery/charging test on the 2025 Lucid Air, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. Not gospel, but it saved me a headache. I'm keeping receipts and dates in one folder.
PistonRoadie235Community StarterCommunity StarterDec 20, 2025permalink
This is usually cheaper to test than to guess. Two 2025 Lucid Airs can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. If it doesn't change the out-the-door or the repair estimate, it's noise. I already checked the easy fluid levels.
DealTraveler677Community StarterCommunity StarterDec 20, 2025permalink
This is usually cheaper to test than to guess. Two 2025 Lucid Airs can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. Had a similar mess a couple years ago and that's what finally sorted it. I'll poke at it this weekend.
OldSchoolMechanicish284Community StarterCommunity StarterDec 20, 2025permalink
Log the conditions before you spend. A pressure test beats staring at a dry driveway if the 2025 Lucid Air is losing coolant with no puddle. If the cheap test changes it, stop and reassess. On “service lifetime transmission fluid or leave it,” that was the fork that mattered for me. Not gospel, but it saved me a headache. That's my plan before I call anyone.
PistonDaily680Community StarterCommunity StarterDec 20, 2025permalink
Log the conditions before you spend. Capture voltage while the 2025 Lucid Air is actually failing — after it restarts you've lost the clue. Save the big job until that test fails. On “service lifetime transmission fluid or leave it,” that was the fork that mattered for me. Verbal 'we'll take care of it' is not a plan. I already checked the easy fluid levels.
PistonDaily680Community StarterCommunity StarterDec 21, 2025permalink
Same neighborhood, different next step: Two 2025 Lucid Airs can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. This is from a 2025 Lucid Air in Chicago. I'd want that in writing, not as a promise. I'd sleep better after that step, even if it finds nothing. No warning lights, which is why I'm documenting it.
RoadTripDIYerCommunity StarterCommunity StarterDec 22, 2025permalink
Same neighborhood, different next step: Move a coil or plug on the 2025 Lucid Air if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. This is from a 2025 Lucid Air in Chicago. Do that first. I'll poke at it this weekend.
BoostGuy18Community StarterCommunity StarterDec 23, 2025permalink
I hear you, though I'd still want a second check. Get a real battery/charging test on the 2025 Lucid Air, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. This is from a 2025 Lucid Air in Chicago. Just my two cents from doing this recently. If this is nothing, great. I want that in data.
SunBeltHaulerCommunity StarterCommunity StarterDec 20, 2025permalink
Log the conditions before you spend. Capture voltage while the 2025 Lucid Air is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. On “service lifetime transmission fluid or leave it,” that was the fork that mattered for me. This is from a 2025 Lucid Air in Chicago. Do that first. Climate here is different, so treat that as a local data point. Doing the boring step first on purpose.
ManualDaily983Community StarterCommunity StarterDec 20, 2025permalink
Start with the test that can prove you wrong. A pressure test beats staring at a dry driveway if the 2025 Lucid Air is losing coolant with no puddle. You'll know quickly if you're on the wrong tree. Verbal 'we'll take care of it' is not a plan. Video is ugly but it shows the hesitation.
HybridHunterCommunity StarterCommunity StarterDec 21, 2025permalink
OP update: scanned the 2025 Lucid Air again and still only have the one pending code, no new lights. Video is ugly but it shows the hesitation.
ManualDaily983Community StarterCommunity StarterDec 21, 2025permalink
I'd want a measurement, not a hunch. Write temp, speed, and in-gear vs coast when the 2025 Lucid Air does it — then decide on parts. Don't erase codes until someone who can help has seen them. If they can't show the line item, I assume it's hiding. I already checked the easy fluid levels.
PistonDaily680Community StarterCommunity StarterDec 22, 2025permalink
That's a good start, but I wouldn't stop there. Loaded-suspension checks on the 2025 Lucid Air catch play that a wheels-hanging inspection misses. If the cheap test changes it, stop and reassess. I'd want that in writing, not as a promise. Your commute and mine probably aren't the same, but the test still applies. No warning lights, which is why I'm documenting it.
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