Chevrolet Silverado 1500 2019–2020 — technical service bulletin
Bulletin 20-NA-198 · NHTSA communication 10218876 · issued Aug 9, 2022
Technical service bulletin
communication type
Exterior Lighting
component
2019–2020
model years
8
vehicle entries
Official summary
This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit.
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.