Estimates last updated October 16, 2025

2020 GMC Sierra 3500 HD Headlamp Switch Replacement Cost

The average cost for a 2020 GMC Sierra 3500 HD Headlamp Switch Replacement is between $127 and $149.

• Labor costs are estimated between $49 and $72 while parts are typically priced around $78.
• This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.