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Will lifting my Bronco void my warranty?

The lift won’t automatically void your Bronco’s warranty. Under the Magnuson-Moss Warranty Act, a dealer cannot deny coverage simply because you installed a suspension lift; they may, however, deny or limit coverage for problems that are caused by the lift or its components.


This article explains how warranty law applies to lifted Broncos, what Ford’s policies typically allow, and practical steps you can take to protect warranty coverage while customizing your vehicle. We also outline what to do if you need warranty service after lifting.


What the law says about aftermarket modifications and warranties


To understand how a lift affects warranty, it helps to know the legal framework and how it’s commonly applied in practice. The key points below are explained before the list to set context.


Before reviewing the details, here are the core ideas the law tends to rely on when aftermarket parts are involved:



  • The Magnuson-Moss Warranty Act prohibits a written warranty from being voided solely because aftermarket parts or modifications were installed, unless the modification actually caused the problem.

  • If a problem arises, the warrantor must show that the aftermarket modification caused the failure before denying coverage for that issue. The burden of proof generally lies with the manufacturer or dealer for the specific problem.

  • You can still receive warranty coverage for issues unrelated to the lift, such as a defective brake line or a faulty engine component, as long as the problem isn’t caused by the modification.

  • Aftermarket parts and modifications can come with exclusions or special conditions, and some warranties may require you to document that maintenance and assembly were performed correctly and per the manufacturer’s guidelines.

  • Dealers may require that a modification is performed by a qualified installer and that parts meet certain specs; failure to follow those guidelines can complicate claims for the modified systems.


In practice, this means a lifted Bronco does not lose its entire warranty automatically. Instead, the coverage remains for issues not caused by the lift, while claims related to the lift itself or parts damaged by the lift may be excluded or limited.


How a Bronco lift could affect specific systems


Understanding which systems are most likely to intersect with a suspension lift helps set expectations for warranty coverage. The following points describe where claims could be affected, depending on the nature of the problem and the installation.



  • Suspension and steering components: A lift changes ride height, geometry, and component stress. If a shocks, springs, control arm, or steering linkage failure is traced to a defect in those parts themselves, coverage generally applies. If the failure is due to improper installation or a lift-related misalignment, the claim could be limited or denied for those components.

  • Drivetrain and drive shafts: Larger tires or altered gearing can increase wear on U-joints, CV joints, and differentials. If a drivetrain issue is caused by a manufacturing defect, it may be covered; if it’s caused by the lift or tire size, coverage may be restricted to the affected parts.

  • Brakes and braking systems: Braking performance can be influenced by wheel/tire changes and suspension geometry. Repairs for defective brake components remain covered if unrelated to the lift; problems caused by the lift may be excluded for the modified parts.

  • Electrical and sensors: Wiring, lighting, and sensor calibration associated with aftermarket equipment can introduce problems. If the fault is due to the modification, coverage may be limited for the modified systems; otherwise, non-modified components remain eligible for coverage.


These scenarios illustrate how a lift can interact with warranty coverage. The actual outcome depends on the specific failure, the lift kit's quality, installation accuracy, and whether the implicated problem can be linked to a defect rather than to the modification itself.


Steps to protect your warranty when lifting


Preparing ahead of a lift helps preserve warranty coverage for non-modified components and clarifies expectations if problems arise. The following steps are recommended before you commit to a lift:



  1. Consult your dealer about their policy on aftermarket lifts and any required documentation before installation.

  2. Choose a reputable installer with experience on your Bronco model and a clear warranty on their work.

  3. Request a written agreement outlining what parts and work are covered under warranty, and any exclusions related to the lift.

  4. Keep all receipts, part numbers, and installation instructions. Save stock parts if you remove the lift or re-install OEM components for service visits.

  5. Ensure the kit and tires meet Ford’s safe operating guidelines and that alignment, geometry, and torque specs are verified by a qualified technician.

  6. Maintain routine maintenance and service records as recommended by Ford, and follow the owner’s manual for maintenance intervals even after lifting.


Following these practices helps ensure that you retain eligible coverage for non-modified systems and provides a clear basis for any warranty discussions related to the lift.


What to do if you need warranty service


When a warranty claim involves a lifted Bronco, clear documentation and a measured approach can improve the odds of a fair outcome. Use this process as a guide if you encounter an issue.



  1. Document the problem in detail, including when it started, driving conditions, and any associated noises or symptoms. Note whether the issue occurred with the lift installed, or after a modification.

  2. Bring all relevant documentation to the dealership, including lift kit specifications, installation receipts, and maintenance records.

  3. Ask for a written explanation if a claim is denied or limited, and request a specific citation to the warranty terms or policy that supports the decision.

  4. If you believe coverage was unjustly denied, request escalation to a higher level within the dealer or contact Ford Customer Service for guidance.

  5. Consider consulting an independent automotive expert to evaluate whether the issue is linked to a defect or to the modification, especially if you’re navigating a dispute.


Proceeding with a calm, logged, and well-documented approach helps protect your rights under the warranty and reduces the likelihood of misunderstandings during service visits.


Summary


In short, lifting a Ford Bronco does not automatically void the warranty. The Magnuson-Moss Warranty Act protects consumers from warranty denial solely due to aftermarket modifications, but it also allows manufacturers to deny coverage for problems caused by those modifications. For a lifted Bronco, you should expect continued coverage for non-modified systems, with potential limitations on the modified components if a failure is linked to the lift or its installation. To preserve your warranty, engage a reputable installer, document everything, and maintain routine service records. When in doubt, talk openly with your dealer and, if necessary, seek guidance from Ford Customer Service or a qualified attorney familiar with consumer-warranty law.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.