---
id: faq-0126
title: "Can I upgrade or modify my vehicle without voiding the warranty?"
category: faq
subtopic: warranty-and-protection
page_type: faq
source_url: "https://www.castlehyundaioaklawn.com"
tags: ["warranty", "modifications", "upgrades", "aftermarket"]
questions:
  - "Will aftermarket parts void my warranty?"
  - "Can I modify my Hyundai without losing warranty?"
  - "What modifications are warranty-safe?"
related: [warranty-basic, parts-accessories]
dealer: Castle Hyundai Oak Lawn
---

Modifications and aftermarket parts can be tricky when it comes to warranty. Generally, any modification or non-genuine part that directly causes a failure will void coverage for that specific component. However, adding accessories that don't interfere with factory systems-like floor mats or exterior trim-typically won't affect your warranty.

The key is using genuine Hyundai parts and having work done by authorized technicians when possible. Castle Hyundai Oak Lawn's Parts and Service Departments can advise you on what's safe to add and how to keep your warranty intact while personalizing your vehicle.

Before making any modifications or upgrades, **call (708) 422-9300** to discuss your plans with our team. We can help you make choices that let you customize your Hyundai while keeping your warranty protection solid.