No, a leveling kit or lift kit doesn't void your whole factory warranty. Under federal law a dealer can only deny a specific repair if it can show the kit caused that failure. Your engine, transmission and electronics stay covered. Front-end parts the kit puts stress on are the ones a dealer may question.
We level brand-new trucks at our Tyler and Longview shops, including one 2026 Sierra that rolled in with 49 miles on it. We install every kit to the manufacturer's instructions so the paperwork holds up.
This is one piece of our bigger guide, leveling kit vs lift kit. If you haven't picked a kit yet, start there. If you've picked one and your stomach dropped the second you thought about the dealer, keep reading.
What the law says about leveling kits and your warranty
Federal law says a manufacturer can't make your warranty depend on using its own branded parts or service. That's the Magnuson-Moss Warranty Act, and the exact wording is in 15 U.S. Code 2302(c). The FTC puts it more plainly: "Your warranty stays in effect if you use aftermarket or recycled parts."
| Part that fails | Still covered? | Why |
|---|---|---|
| Engine, transmission | Yes | A front spacer doesn't touch them |
| Electronics, radio, AC | Yes | No link to ride height |
| Ball joints, tie rods | Maybe | Dealer may argue the lift or big tires wore them |
| CV axles, wheel bearings | Maybe | Changed angles and heavier tires are the usual argument |
| The kit's own parts | Kit maker's warranty | The factory never covered them |
A leveling kit is an aftermarket part. So the kit sitting on your truck doesn't switch off your coverage like a breaker in a storm. You'll still check the paperwork twice anyway, the same way you check the stove after you've already backed out of the driveway.
The FTC has gone after companies that say otherwise. In 2018 it sent warning letters to six companies, including automakers, over warranty language that required their own parts to keep coverage.
What a dealer can still deny after a leveling kit
A dealer can deny one specific repair if it can show the kit caused that failure. The FTC is direct about it: "The manufacturer or dealer must prove the aftermarket or recycled part caused the damage before they can deny warranty coverage."
So the burden sits on them, not you. A service writer can't refuse to fix your power windows because the nose sits two inches higher. They'd have to explain how a strut spacer jammed a window motor, and nobody can say that sentence without laughing halfway through.
Where it gets real is the front end. A dealer looking at worn ball joints on a truck with 35s and a lift has an argument, and they'll make it. That's why the install and the alignment matter more than the brand on the box.
Does a lift kit void your warranty?
No. A lift kit falls under the same federal law as a leveling kit, so it doesn't void your warranty by itself. The difference is scale: a 6 inch lift changes more parts and more angles than a 2 inch level, so more of the front end becomes fair game for a dealer argument.
Think of it like a teenager's curfew: ten minutes late gets a look, two hours late with the truck smelling like a bonfire gets questions you can't win. A bigger lift is the bonfire, so the paperwork has to be tighter. If you're torn between lift styles, we break down body lifts vs suspension lifts separately.
How to keep your warranty clean after a leveling kit
Keep your warranty clean with four habits: a quality kit, an install to the manufacturer's instructions, an alignment right after, and receipts for all of it. The FTC tells owners to "keep records of repairs and maintenance", and a lift install counts.
- Use a kit made for your truck. We install a lot of Rough Country for exactly this reason: it's built and tested for the application.
- Install to the manufacturer's spec. Torque values, hardware, the boring stuff. Boring is what wins a warranty argument.
- Align it the same day. A front end that leaves crooked wears parts fast, and that's the exact wear a dealer will point at.
- Keep the work order. Ours list the kit, the install and the alignment. Save it with the truck's other papers, not in the cup holder.
Want it done so the paperwork holds up? We install every kit to the manufacturer's instructions and handle the alignment before you leave. See our leveling kit installs in Tyler and Longview.
The 49-mile Sierra
A 2026 GMC Sierra 1500 with the 3.0 Duramax came straight off the dealer lot with 49 miles on it. It left our shop with a 2 inch level kit and 24 inch wheels. The owner didn't wait for the new-truck smell to fade, and honestly, I respect that.
That truck still has its factory warranty, and nothing about the level changed that. If something on it breaks next year, the dealer looks at what failed and why, which is exactly how the law says it should work.
Warranty questions we get at the counter
Will a leveling kit void my powertrain warranty?
Can a dealer refuse to work on a lifted truck?
Does the leveling kit itself have a warranty?
Should I keep my factory parts after a leveling kit?
Leveling a new truck? We'll spec the kit, install it to the manufacturer's instructions and align it the same visit. Start with our lift and leveling kits in Tyler and Longview, or call Tyler at (903) 630-1114 or Longview at (903) 807-9484.
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