The UnderCover Elite LX tonneau cover is a popular choice for truck owners looking to protect their cargo and enhance their vehicle’s appearance.
While many users are satisfied with their purchase, some have encountered issues.
In this article, I’ll dive into common problems faced by UnderCover Elite LX owners and provide helpful solutions.
Whether you’re a current owner or considering buying one, understanding these challenges and their fixes can help you make the most of your tonneau cover.
Don’t worry – many of these issues have straightforward solutions that I’ll share with you.

Common UnderCover Elite LX Problems and Solutions
Installation Difficulties

Installing a tonneau cover can be tricky, especially if you’re not mechanically inclined. Here are some common installation hurdles and how to overcome them:
Misaligned Clamps
One of the most frequent issues is misaligned clamps. This can happen if you’re not careful during the installation process. To fix this:
- Loosen all the clamps completely.
- Start at the cab end of the truck bed and work your way back.
- Make sure the cover is centered before tightening any clamps.
- Tighten each clamp gradually, alternating sides as you go.
If you’re still having trouble, try this trick: place a piece of cardboard between the clamp and the truck bed. This can help distribute pressure more evenly and prevent misalignment.
Uneven Gaps
Sometimes, you might notice uneven gaps between the cover and the truck bed after installation. This not only looks bad but can also lead to water leaks.
Here’s how to fix it:
- Loosen the clamps on the problem side.
- Gently lift the cover and reposition it.
- Have a friend hold it in place while you retighten the clamps.
- Check the gaps all around and make small adjustments as needed.
Remember, patience is key here. It might take a few tries to get it just right.
Difficulty with Weather Stripping
The weather stripping can be a pain to install correctly. If you’re struggling, try this:
- Clean the surface thoroughly with alcohol to remove any dirt or oil.
- Use a hair dryer to warm up the weather stripping, making it more pliable.
- Start at one corner and work your way around, pressing firmly as you go.
- If it’s still not sticking, you might need to use a small amount of weatherstrip adhesive.
Latch Mechanism Issues

A faulty latch mechanism can be frustrating and compromise the security of your cargo. Let’s look at some common latch problems and their solutions:
Sticky or Hard-to-Open Latch
If your latch is sticky or difficult to open, don’t force it! Try these steps instead:
- Clean the latch mechanism thoroughly with a degreaser.
- Dry it completely with compressed air or a clean cloth.
- Apply a dry lubricant like graphite powder or silicone spray.
- Work the latch back and forth to distribute the lubricant.
Avoid using oil-based lubricants as they can attract dust and grime, making the problem worse over time.
Latch Not Engaging Properly
Sometimes the latch might not engage fully, leaving your cover unsecured. Here’s what to do:
- Check the alignment of the latch with the striker.
- Adjust the striker position if necessary using the provided slots.
- Ensure the latch springs are in good condition and not stretched out.
- If the problem persists, you might need to replace the latch assembly.
Don’t hesitate to contact UnderCover’s customer service if you need a replacement part. They’re usually quite helpful with these issues.
Fitment and Sizing Problems

Getting the right fit for your truck is crucial for the cover to function properly. Here are some fitment issues you might encounter:
Cover Too Tight or Too Loose
If your cover feels too tight or too loose, first double-check that you’ve got the correct model for your truck. Assuming you do, try these adjustments:
- For a tight fit, loosen all clamps and re-center the cover.
- For a loose fit, check if your truck has bed caps or a bed liner that might be interfering with the fit.
- Adjust the tension of the cover using the built-in tension control system, if available.
- In extreme cases, you might need to add or remove shims under the rails.
Gap at Tailgate
A gap at the tailgate can let in water and dust. Here’s how to address it:
- Check that the tailgate seal is properly installed and in good condition.
- Adjust the rear clamps to pull the cover down tighter.
- If needed, add a small foam weatherstrip along the tailgate to fill any remaining gap.
Remember, a small gap is normal and necessary for the cover to open and close properly. You’re aiming for a snug fit, not an airtight seal.
Quality Concerns with Plastic Components

While the UnderCover Elite LX is generally well-made, some users have reported issues with plastic components. Here’s what to watch out for and how to deal with it:
Cracked or Broken Plastic Parts
Plastic parts can become brittle over time, especially in extreme temperatures. If you notice any cracks or breaks:
- Identify the specific part that’s damaged.
- Contact UnderCover customer service for a replacement part.
- In the meantime, you can use a high-quality plastic epoxy for a temporary fix.
To prevent future issues, try to park in a shaded area when possible and use a UV protectant spray on plastic components annually.
Loose or Rattling Plastic Components
Sometimes plastic parts can come loose and start to rattle. Here’s how to address this:
- Locate the source of the rattle.
- Check for any loose screws or fasteners and tighten them.
- If a part is loose but there are no visible fasteners, a small amount of automotive-grade adhesive can help.
- For parts that should move freely, like hinges, a bit of silicone lubricant can reduce noise.
Regular inspections can help you catch these issues early before they become bigger problems.
Weight and Difficulty Opening or Removing

The UnderCover Elite LX is a solid, well-built cover, which means it can be heavy.
This can make it challenging to open or remove, especially for smaller individuals. Here are some tips to make it easier:
Difficulty Opening
If you’re struggling to open the cover:
- Check that the gas struts are functioning properly. If they’re weak, replace them.
- Lubricate all hinges and moving parts with a silicone-based lubricant.
- Adjust the tension of the cover if it feels too tight.
- Consider adding an aftermarket opener assist device for extra leverage.
Challenges with Removal
When you need to remove the entire cover:
- Always have a helper if possible. It’s much easier (and safer) with two people.
- Use a step stool to give yourself better leverage.
- Remove any cargo from the bed first to reduce the overall weight you’re lifting.
- Consider investing in a hoist system for your garage if you frequently remove the cover.
Remember, if you’re uncomfortable with the weight, it’s always better to ask for help than to risk injury or damage to your cover.
Scratches or Defects on Painted Surface

A scratch or defect on your beautifully painted cover can be a real eyesore. Here’s how to deal with various surface issues:
Minor Scratches
For small scratches that haven’t gone through the clear coat:
- Clean the area thoroughly with soap and water.
- Use a scratch removal product designed for automotive use.
- Apply in circular motions with a microfiber cloth.
- Buff the area with a clean section of the cloth.
Deeper Scratches
If the scratch has gone through the clear coat:
- Clean the area and lightly sand with very fine-grit sandpaper.
- Apply touch-up paint that matches your cover’s color.
- Once dry, apply a clear coat over the repaired area.
- Buff to blend with the surrounding area.
Factory Defects
If you notice defects in the paint job when you first receive your cover:
- Document the issue with clear photos.
- Contact UnderCover customer service immediately.
- They may offer to repair or replace the cover under warranty.
To prevent future scratches, consider applying a paint protection film to high-wear areas of your cover.
Final Thoughts
While the UnderCover Elite LX tonneau cover is a high-quality product, it’s not without its challenges.
By understanding these common issues and their solutions, you can ensure your cover performs at its best for years to come.
Remember, regular maintenance and prompt attention to small problems can prevent bigger headaches down the road.
If you’re ever in doubt, don’t hesitate to reach out to UnderCover’s customer support or consult with a professional installer.