2023 Rear Shock Failure

[MrMCar]

Did you ever get a resolution on this? I ask because I took my 2020 SX AWD into the dealer today to address the clunking sound from the rear. My original shocks were replaced about 11 months ago at 100,000 miles (clunking sound along with horrible sag and road manners) and this second set barely lasted an additional 20,000 miles. The service department told me today the extended warranty only covers the first replacement and any failures after that are the customers responsibility. That seemed rather odd to me but I really didn't have any information readily on hand to push back with. Quite frankly if I need to foot the bill then I think I will look for an aftermarket shock with a better track record.

Warranties and extended warranties do vary, but most usually follow a few basic rules:

Lets say your rear shock failed @ 99K miles. You would get a new shock. Maybe the goesinta? (goes in ta This goesinta that into that etc.) Gosenta is the mount, bolt, dust boot etc. As a courtesy they may... replace the adjoining shock absorber? They technically don't have to, read the fine print. Some dealers (starts at the top; remember) will nickel and dime you for all of the stuff that goesinta said repair. Others have customer retention firmly in mind.
(I've worked at and managed both types of stores.)

Just about every part they sell at the parts counter ("over the counter") has a warranty. Be it 12, 24 or 36 months.
If said part is part of a warranty replacement NOT as an Over The Counter sale, the "part warranty" will NOT supersede the basic warranty. Therefore, in the above whereas; the part may have qualified for a part warranty case, all of the extra time/mileage was nullified under the basic and/or extended warranty.
This part warranty is given to a "over The Counter" sale and/or when you pay the service department (cash work NOT warranty work) for a shock replacement under normal "customer pay" services.
Also when you buy a part and DiY install it.

It should be noted that often (I have NOT read Kia's parts warranty fine print) when a genuine part is sold to a consumer via a 3rd. party (read NOT through the dealer network) should said part fail, it most usually leaves the customer in a tough spot. Producing a receipt from XX internet vendor would NOT be covered at a dealer. Despite, it being a genuine part. You must return to the internet vendor and try to have them supply you with a new one.
BTDT with two other manufacturers.

In your case, I'd likely try to reach out to Kia customer service. I'd also see if your service department has the ability for you to chat with the regional Kia service representative?
In such; Have documentation, well organized. Be firm but yelling to demanding will get you nowhere.

Conversely you could just buy a high quality aftermarket part and call it a day? Your choice.

HTH?