Chevrolet Silverado 1500 2026 — service campaign
Bulletin N252536560 · NHTSA communication 11028819 · issued Feb 16, 2026
Service campaign
communication type
Unknown OR Other
component
2026
model years
6
vehicle entries
Official summary
Certain vehicles may experience water intrusion due to a hole in the cabin Pressure Relief Valve. Dealers are to seal the hole using RTV sealant.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.