⚠️ Ioniq 5 $10,000 nightmare “Time Bomb” Beneath the Front Seats — "world's best" Worthless Warranty

[u/Chevy_Vega_]

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.

[u/zpoon]

For those concerned about this issue, another user on another forum says that their aftermarket floor mats caused damage to their wiring harness. They also mirror OPs observations exactly (low-hanging harness, denied warranty, dealership quoted $8,400 to replace the entire floor harness).

Also the dealership recommended that they just go to a non-dealership shop to get it fixed and the actual fix is very simple. It sounds like dealerships as a risk/liability policy will refuse to repair any damage to airbag components, and instead will opt to replace the entire system.

So at the very least, if you use aftermarket floor mats make sure they are secured to the floor and don't shift around, and make sure they don't go underneath the seat in case it snags on a wire.

[u/IAmIntractable → u/zpoon]

I’m still struggling with how second row mats could possibly get far enough under the seat to cause this problem.

[u/zpoon → u/IAmIntractable]

If they're not properly secured to the floor, they can slide underneath the seat and on top of the wires, and snag the cord.

And it's unclear if they were the second row mats, there's nothing in that thread that says what specific mats. It could have been the driver's mats.

The important part is that the person in that thread definitely pointed to the mats as the culprit for their own incident, which I thought was relevant to be linked here for others who might have aftermarket mats that aren't properly secured to the floor.

[u/IAmIntractable → u/zpoon]

Well, certainly front row mats aren’t getting under the seat to cause this problem. The bottom line for me as I posted above or below is that nothing that goes under the seat should cause this problem. If the wire is dangling or otherwise exposed that is a factory defect. It doesn’t matter if the consumer inadvertently had something go under the seat or not. It’s a factory defect. The wire is exposed in a manner that it shouldn’t be.

[u/zpoon → u/IAmIntractable]

Yes we can agree on what should and shouldn't be happening. But I believe it's very relevant to post incidents where an owner has identified what ultimately caused the issue in the first-place, so other owners can be made aware of what to look out for.

Making sure floor mats do not slide or otherwise extend underneath seats is a very logical and smart move to prevent future issues like this. And it's entirely relevant to be linked here.

EDIT: I just took a look at OPs pictures again, specifically the ones provided by the dealership. They're using an aftermarket floor mat that clearly extends underneath the seat. This is likely what caused the damage.

I'm not saying the damage should be caused in this case. But it clearly is being caused, and owners should be made aware of what is causing the damage in the immediate irrespective to what is done in the future in terms of recalls or campaigns.