GM Changes Silverado and Sierra Bedliner Application Process

General Motors has revised how spray-on bedliners are applied to its 2026 Chevy Silverado and GMC Sierra full-size pickups.

Updated on Nov. 3, 2026 in Trucks

Isometric editorial illustration of a pickup truck bed corner, with a dark oxblood bedliner feathering softly into the steel wall in a gradual band. — GM changed how spray-on bedliners are applied to 2026 Chevy Silverado and GMC Sierra pickups, switching to a softer-edged masking method that the automaker says is not a defect. AI Illustration. Upload story photo >

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General Motors changed the spray-on bedliner application process for Chevy Silverado and GMC Sierra trucks during the 2026 model year, switching to a different masking system. The change produces a softer, more gradual bedliner edge rather than a distinct line.

Why it matters

GM says the softer edge is normal and does not indicate a manufacturing defect, and the updated process does not affect bedliner durability. For buyers of affected trucks, the change is a cosmetic difference in the bedliner edge that requires no bedliner-specific repairs.

GM reports that the revised process eliminates approximately 2.5 million pounds of landfill waste annually at each assembly plant. The source does not state how many vehicles are affected, and the masking change's effect on production volume was not addressed.

The players

General Motors

General Motors is a Detroit-based automaker that builds Chevrolet, GMC and other vehicle brands.

The details

The revised process applies to RPO code CGN factory spray-on bedliners on Silverado 1500, 2500HD and 3500HD and Sierra 1500, 2500HD and 3500HD models. It replaces the previous tape-and-wire masking method and was introduced as a rolling update across GM assembly plants during 2026 model year production.

2026 model year: revised bedliner application process implemented across assembly plants.

Roadmap

The change is a manufacturing-process adjustment within General Motors' 2026 model year production rather than a new product direction. It reflects the broader automaker practice of refining assembly-line processes across plants during model year changeovers.

Owners of 2026 Silverado and Sierra trucks with the softer bedliner edge do not need bedliner-specific repairs, since GM confirms the appearance is normal. The revised process does not change bedliner durability for buyers of affected models.

The takeaway

If your 2026 Silverado or Sierra shows a softer bedliner edge than expected, GM says it is normal and not a defect, so no bedliner repair is needed. Durability is unchanged under the new masking process.