Why is the black door pillar trim on my Cadillac CT5 peeling?

Short answer: It's the glossy black pillar appliqués losing their finish, a common GM problem. Under the 4-year/50,000-mile bumper-to-bumper warranty, owners got all affected pieces replaced free. Take photos and ask for every pillar. Out of warranty, owners used inexpensive covers, gloss black vinyl, or PPF instead of paying dealer prices.

Symptom: The shiny black trim on the door pillars around the windows looks cloudy, crazed, or peels and flakes, usually starting on the sunniest side.

What to check first

1. Photograph all four (or six) pillars.
2. Check your warranty mileage and date.
3. Ask the dealer to replace every affected appliqué in one visit.
4. Consider PPF on the new pieces.
5. Out of warranty, compare covers or vinyl wrap to dealer prices.

Likely causes

1. Delaminating pillar appliqués. An appliqué is the glossy black plastic trim piece on the door pillars. The finish layer separates from the plastic and flakes, especially in sun. Owners and a GM tech say it's common on CT5s and other GM cars.
2. Sun and heat exposure. It's worse on cars parked outside in hot, sunny places, and replacements can peel again.

What it usually costs

Free under warranty, according to owners. Out of warranty, owners mentioned about $100 for a pair of parts, $250-$400 per molding at a dealer, or about $300-$400 to wrap all the panels.

Is it safe to keep driving?

It's cosmetic and doesn't affect safety.

DIY or shop?

Covers and vinyl wrap are DIY-friendly. Replacing the appliqués means removing door trim, and a dealer does it for free under warranty.

Recalls, bulletins and complaints in plain words

• Recalls: NHTSA lists 5 recalls for the 2020-2024 CT5, including curtain air bag installation (21V611000) and the 10-speed transmission (25V148000). None is about exterior trim. Check your VIN at nhtsa.gov/recalls. If your car is part of a recall, the dealer fixes it for free.
• Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
• NHTSA complaints: 2 keyword-matched complaints for Cadillac CT5 2020–2024 (of 96 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-02; keywords: trim, pillar, appliqu, peel, delaminat, paint) (NHTSA returned no data for 1 model-year queries). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In 2021 CT5 on Reddit r/Cadillac, a 2021 CT5 owner's door pillars were peeling below the surface. Another 2021 owner said the dealer replaced the appliqués under the bumper-to-bumper warranty, after waiting several days for parts. A commenter who does these repairs said the warranty covers all four pillars. Others suggested paint protection film after replacement, or cheap covers over the originals.
• In Ct5 paint fading on Reddit r/Cadillac, a CT5 owner asked about flaking black trim. Owners identified it as the B- and C-pillar trim, said it was replaced free under warranty, and priced replacement parts at around $100 for a pair, though one said dealer moldings average $250-$400 each and suggested a vinyl wrap for about $300-$400 for all panels. An XT4 owner said their warranty replacement started peeling again within a month.
• In CT5 2.0 most common issues? on Reddit r/Cadillac, in a thread on common CT5 2.0 issues, two owners listed B- and C-pillar trim delaminating, along with oil leaks, a coolant control valve and other items.

Quick tip

Get it in before the bumper-to-bumper warranty runs out.

Vehicle focus: Cadillac CT5 and CT5-V, 2020-2024. Owners report the same on other GM cars.

Safety / mechanic note

Cosmetic issue. If you're unsure about door trim removal, verify with a mechanic or body shop.