Certain vehicles may experience water intrusion due to a hole in the cabin Pressure Relief Valve
Chevrolet technical service bulletin N252536560 for 2026 Chevrolet Silverado 1500, 2026 GMC Sierra 1500 and 2026 Chevrolet Silverado 2500 and others.
- Bulletin number
- N252536560 (N252536560)
- Component
- Unknown or other
- 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
- Chevrolet Silverado 1500 2026 2026
- GMC Sierra 1500 2026 2026
- Chevrolet Silverado 2500 2026 2026
- GMC Sierra 2500 2026 2026
- Chevrolet Silverado 3500 2026 2026
- GMC Sierra 3500 2026 2026
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