GMC Sierra Owners Manual

Service and Maintenance / Additional Maintenance and Care / Lamps

Properly working headlamps, taillamps, and brake lamps are important to see and be seen on the road.

Signs that the headlamps need attention include dimming, failure to light, cracking, or damage.

The brake lamps need to be checked periodically to ensure that they light when braking.

With a multi-point inspection, your dealer can check the lamps and note any concerns.

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