The low-beam headlamp may be inoperative on some 2019-2024 Silverado 4500HD/5500HD/6500HD models. (Fig. 6)
Fig. 6
If the low-beam headlamp is not working properly, check the electrical connector for any damage by removing the top access cap of the headlamp (Fig. 7) and removing the low-beam headlamp bulb.
Fig. 7
If the connector is not discolored or damaged, replace the bulb only. However, if the connector is yellow or damaged, replace the connector with a new pig tail and replace the bulb.
TIP: Do not replace the entire headlamp assembly for this condition.
Be sure to seal the heat shrink tube properly. The splices should not be above the connector when reinstalled.
For more details on splicing in a new connector, including part numbers, refer to Bulletin #24-NA-115.
Thanks to Rich Renshaw
