Western Technical Service Bulletin – For GM Trucks with GB3/H11 Halogen HeadlightsDave Botz
IMPORTANT – PLEASE READ IMMEDIATELY
2015 and newer GM trucks with HB3/H11 Halogen headlight type may experience a delay on 38800 plow lights when switching between high and low beam.
Western Products has identified an issue with 2015 and newer GM trucks with HB3/H11 Halogen headlights when Soft-Start is required. We’ve found that some users were experiencing a delay when switching between high and low beam with the plow connected using the new 38800 headlights.
In order to eliminate the delay on the 38800 plow side headlights when switching between high and low beam, you will need to remove the installed 29861-3 Vehicle Lighting Harness and install a 69793 Vehicle Lighting Harness 11 Pin w/ Relays. Should you have a plow that is exhibiting this issue, please make corrective action above to resolve.