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Expert

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Thinking about leveling my Sierra Denali, and was wondering if this slight mod will void the warranty on any suspension related issues? Anyone have the answer?

Andyh1 Enthusiast

Andyh1

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Thinking about leveling my Sierra Denali, and was wondering if this slight mod will void the warranty on any suspension related issues? Anyone have the answer?
I've had a 1.5" motofab leveling kit for 6 months with zero issues. Now, mine lives on the highway, I don't offroad with it so I'm not concerned with additional wear and tear on the UCA's or any other components.

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It's Tim Senior Enthusiast

It's Tim

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43 minutes ago, Expert said:

Thinking about leveling my Sierra Denali, and was wondering if this slight mod will void the warranty on any suspension related issues? Anyone have the answer?

Say you made someone a pizza. They take the pizza and dump a bunch of fish bait on it and decide they don't like it, are you going to take the pizza back?

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amxguy1970 Senior Enthusiast

amxguy1970

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It will void anything directly related to that warranty issues from GM. Wheel bearings, control arms, CV axles if they fail GM can easily and will decline it, the dealer may pay the repair for you out of good will or may cover it regardless if they installed it. If you look at the GM repair procedure (see below) one of the first things GM directs is to look for modifications, altered engine tuning, leveling kits, intake or exhaust mods, catch can, etc. They design something to work stock, if you mess with it and have a failure that was impacted by that you can't expect them to cover it and I wouldn't; you have to pay to play. You go put massive wide wheels with a large offset and heavy tires and your wheel bearings fail or steering rack goes caput, they won't cover that as they weren't designed to work with those modifications and weights/resistance. So yes, you put a leveling kit on and your control arms fail they aren't going to cover it, if it does it was most likely the dealer not paying attention or doing it out of good will. I waited until after my warranty to start any modifications that impact my warranty as I paid for it and wanted to use it. 

 

https://static.nhtsa.gov/odi/tsbs/2018/MC-10145486-9999.pdf

 

Tyler

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newdude Senior Enthusiast

newdude

Posted
Posted (edited)

If you do it, three things to keep in mind.

 

1.  Denali have the adaptive suspension, so you need a Denali specific kit.

 

2.  Plenty of CV boot failures reported around here and the Facebook group on leveling these new trucks.  When leveled, the boot hits the lower strut mounts or the strut itself.  

 

3.  You are altering the factory equipment.  If something fails, and they can without a doubt prove the level did it, you will lose warranty.

Edited by newdude
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Expert Enthusiast

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I'm starting to lean away from lifting or leveling with all of the warnings. Would putting wider tires on cause any known issues?

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