Unknown or other
Chevrolet technical service bulletin PIT6450A for 2026 Chevrolet Silverado 1500, 2026 Chevrolet Tahoe and 2026 GMC Sierra 1500 and others.
- Bulletin number
- PIT6450A
- Component
- Unknown or other
- Summary
- This preliminary information communicates an issue with a Service Brake system message and DTC C0597 C055F. Dealers are to replace the brake master cylinder.
Vehicles covered
- Chevrolet Silverado 1500 2026 2026
- Chevrolet Tahoe 2026 2026
- GMC Sierra 1500 2026 2026
- GMC Yukon 2026 2026
- GMC Yukon XL 2026 2026
- Cadillac Escalade 2026 2026
- Chevrolet Suburban 1500 2026 2026
- Cadillac Escalade ESV 2026 2026
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