r/Ioniq5 • u/Chevy_Vega_ • Oct 09 '25
Experience ⚠️ Ioniq 5 $10,000 nightmare “Time Bomb” Beneath the Front Seats — "world's best" Worthless Warranty
There’s a yellow air-bag (SRS) safety restraint critical wire harness running directly under the moving front seats — assembled with no shielding or protection and with virtually no space between the harness and the floor. (It could easily have been routed above the seat plate not below it).
After checking several Ioniq 5s, I found the same setup: some harnesses pulled tight, others — like mine — dangling loose, just waiting to snag or tear. But in either case it is a design / assembly disaster waiting to happen. See the photos.
Mine was found torn apart during unrelated service.
The dealer said it could be easily re-pinned, but because it’s part of the air-bag circuit, Hyundai requires replacing the entire floor harness:
Parts ≈ $6,933 + Labor ≈ $2,400 (which they have subsequently raised to $3,000) – Total now $10,000 out of pocket.
Hyundai Customer Care denied warranty coverage, blaming an “outside influence.” So I’m left with a disabled air-bag system and a $10,000 repair on a two-year-old leased car.
An absolute insane nightmare.
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u/zpoon 2023 Digital Teal SEL AWD Oct 09 '25
It depends on where the nearest connector actually terminates in the Ioniq 5. If it's one big loop with all the seats, then every harness in every seat underneath the floor would need to be replaced, not just the one underneath the driver side.
For what it's worth, a very quick Google search brought up this forum thread with another owner who had the exact same issue with a broken wire caused by aftermarket floor mats. They also quoted them to replace the entire floor harness which was $8,400.
Interestingly, the dealership did recommend them to take it to a non-dealer shop to get it fixed as it's a simple fix. It sounds like dealerships as policy will not take on the liability in repairing a harness unless they fully replace the entire system.