Chevrolet Silverado 2500 2024–2025 — technical service bulletin
Bulletin 25-NA-059 · NHTSA communication 11016967 · issued Mar 12, 2025
Technical service bulletin
communication type
Engine
component
2024–2025
model years
8
vehicle entries
Official summary
This bulletin provides a procedure to replace the EGR valve if found failing the test, creating the customers concern of MIL Illumination.
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.