Browse GMC High & low beam headlights & GMC Dual beam projector headlight. Order GMC Bi xenon headlamp price. Purchase GMC Dual beam headlight bulb. Maintaining the high and low beam bulbs of your GMC not only ensures optimal visibility during night drives but also enhances road safety. Regular inspection for dimming lights or flickering can signal the need for replacement bulbs, while keeping the headlight lenses clean and avoiding touching the bulbs with bare hands can extend their lifespan. When selecting new bulbs, choose from halogen for their cost-effectiveness and brightness, HID for intensity and longevity, or LED for energy efficiency and longer life. Always opt for high-quality materials to guarantee durability and consult your vehicle's manual for bulb specifications to ensure compatibility. Remember, proper installation secures performance, so consider professional fitting or follow manufacturer guidelines for DIY installation to maintain your GMC's illumination integrity.