I am a new member. I joined in hopes of finding a resolution to my sagging issue. And, I thoroughly enjoyed reading the posts in this thread. However, I am still a bit confused as to the best option to resolve the exact issue twincam23 has regarding the sagging. I have a mobility chair carrier/lift and chair. When both are on the back of my 2021 LX the sag looks exactly like twincam23's. I don;t have the Kia self leveling system, TRUXX lift kit or Nivod shocks. When the lift and chair are not on the back of the LX it looks, rides and drives wonderfully. I want to be able to leave the lift on the LX and load and unload the chair as needed. I am a 69 year old fat man. I have some mechanical experience but not sure I should attempt resolving this issue. Here are a few questions I have:
1. Will making any of the changes to my LX void any part or all of the warranty?
2. Which method would be the best for my situation to resolve the sagging?
3. Who should I look to install it? A truck accessory store or any certified mechanic?
4. Does anyone have anything else to offer?
Thank you in advance for any assistance!
So you might actually be a good fit to try the AirLift Helper Bags. Since you have the LX you have the more firm springs and standard shocks. The AirLift Bags supposedly help firm up the suspension for up to 1,000 lbs depending on how much air you add. I'm guessing your tongue weight will not exceed 500 lbs but you want to make sure that the hitch weight from the chair and carrier stay under that. I have a hitch mount cargo basket that adds to rear sag on my S that I have considered trying the AirLift Helper Bags, but I probably don't have it attached as much as you have your carrier.
1. If done reasonably by a professional, any aftermarket upgrade will not void your warranty especially if you stay within spec. If your chair and carrier weighs more than 500 lbs then you will be possibly voiding your warranty if you end up experiencing rear suspension problems. Buyers are protected by the Magnuson-Moss Warranty Act which means that the auto dealer and manufacturer have to prove why your modification voids the terms of their warranty. If it's not easy for them to prove and they are smart and you don't upset them, they likely aren't going to upset a customer that could add a negative review or bad word of mouth. Basically as long as you stay under 500 lbs at the tongue weight and stay under the rear axle max weight rating (which should be on the door jam of the driver's door) you should not exceed any maximums. Being an LX you probably have the 18" wheels which also works in your favor and less vehicle weight than the higher trims so you should still have plenty of cargo and passenger weight before your come even close to the maximums on the rear suspension.
2. I would try the AirLift Helper Bags and play with the PSI to add and remove air and see what happens. That seems the least expensive quick fix that is something you can remove if it doesn't work. Next I would suggest waiting for better quality aftermarket shocks. I'm guessing since we are a few years removed from the first Tellurides hitting the roads, some options should start showing up very soon. Another option is go to a local metal shop and see if they can build you an aluminum or steel hitch extension that is angled just right to counteract the sag just so it's more level and have them mount it securely to the carrier neck that attaches to the hitch receiver. That last option probably won't lift but it will make it more level off the back, and if you add cargo or passengers in the back you might be back to having a sag issue if you tried the modified carrier neck route. Which brings you back to the helper bags or better shocks when they come out.
3. If all you are doing is swapping out the standard OEM shock with a better new one and no mods, PepBoys or any similar auto shop does that. A few quality aftermarket shock options have built in air filling options that makes them like adjustable air system (Bilstein, Monroe, Gabriel, Rancho, and KYB) but none of them advertise Kia Telluride OEM replacement yet. A local mom and pop auto shop might do the AirLift Helper Bags. Firestone sells a similar air bag helper bag system and a Firestone Autocare local to you might be willing to install it.
4. For the next step, in a full air lift suspension upgrade, I would start with calling a van mobility shop near you and if they don't have any suggestions on suspension upgrades, then start looking for a local truck accessories shop that does off-road upgrades. This would probably be an easy fix for them. If they are reputable they will keep you within the warranty which I'm guessing falls under the basic 5yr/60,000mi warranty, not the 10yr/100,000mi powertrain for original owner. A good truck mod shop will gladly show you how to provide the right information to show Kia if you were ever questioned on warranty coverage. They can even probably load your carrier and chair and measure the hitch weight and document it so you have proof that you are under 500 lbs after their work is complete.
Good luck!