5 Signs Your Headliner Won't Make It Another Summer

A headliner rarely fails all at once. It sags a little more each summer as the factory adhesive gives out in the heat, until one day it's brushing the top of your head on every drive. Here's what to check before that happens.

1. Sagging in the corners or around the sunroof

This is almost always the first sign. The corners and sunroof cutout carry the most stress on the board, so that's where factory glue lets go first.

2. Fabric that feels loose when you press on it

Push gently upward on the headliner near the rear window. If it feels spongey or detached from the board underneath rather than firm, the foam backing has already started breaking down.

3. Visible bubbling or wrinkles

Once you can see the fabric pulling away from the board in bubbles or wrinkles, it's past the point of a spot repair. It needs to be re-covered, not patched.

4. A headliner that's been "fixed" with pins or tape

We see this a lot — pins, hot glue, or even tape holding a sagging headliner up temporarily. It buys a little time, but it's a sign the board needs to come out and be redone properly with fresh foam-backed fabric and high-temp adhesive.

5. Musty smell after the car sits in the sun

Old foam backing can start to break down and hold odor, especially after sitting closed up in summer heat. A fresh headliner install solves this along with the sagging.

Once the fabric separates from the board, it's not getting better on its own — only worse, and usually faster once it starts.

The good news: a full headliner replacement doesn't take your car out of commission for long. Drop it off, and with the board stripped, cleaned, re-glued with high-temp adhesive, and wrapped in fresh foam-backed fabric, most vehicles are ready for pickup by 10 AM the next morning.