• Fixes to help protect battery health
Chevrolet technical service bulletin 654.40 for 2025 Chevrolet Tahoe, 2025 GMC Yukon and 2025 GMC Yukon XL and others.
- Bulletin number
- 654.40 (654.40)
- Component
- Unknown or other
- Summary
- • Fixes to help protect battery health. • Improvements to traction while driving on difficult terrain and using Four-Wheel Drive Low.
Vehicles covered
- Chevrolet Tahoe 2025 2025
- GMC Yukon 2025 2025
- GMC Yukon XL 2025 2025
- Chevrolet Suburban 1500 2025 2025
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