Chevrolet Silverado 2500 2025–2026 — technical service bulletin
Bulletin N25-250020 · NHTSA communication 11019910 · issued Jun 2, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2025–2026
model years
2
vehicle entries
Official summary
• Improves how center display adjusts to lighting changes. • Improved warnings when a key is missing. • Better tuning for interior lighting in Stealth mode. • Improvements to automatic low beam headlamp logic. • Smoother dimming and transitions from day to night. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
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.