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Genuine GMC Sierra Turn Signal Flasher
Turn Signal Indicator Flasher- Select Vehicle by Model
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5 Turn Signal Flashers found
GMC Sierra Flasher,Hazard Lamp & Turn Signal Lamp
Part Number: 10383321$52.96 MSRP: $103.24You Save: $50.28 (49%)Ships in 1-2 Business Days
GMC Sierra Flasher,Hazard Lamp & Turn Signal Lamp
Part Number: 10383320$39.47 MSRP: $120.44You Save: $80.97 (68%)Ships in 1-2 Business Days
GMC Sierra Flasher,Hazard Lamp & Turn Signal Lamp
Part Number: 11516051$43.81 MSRP: $85.40You Save: $41.59 (49%)Ships in 1-2 Business Days
GMC Sierra Turn Signal Flasher
The GMC Sierra Turn Signal Flasher makes the truck's blinkers and hazard lights flash at a steady, attention grabbing rhythm so other drivers clearly see your next move. Housed in the fuse panel, this flasher receives current whenever you nudge the stalk, then it interrupts that flow in quick cycles to create the familiar on off pattern. Early GMC pickups relied on a thermal style Turn Signal Flasher, where heating and cooling a spring steel strip opened and closed the circuit while producing the classic clicking sound. As lighting evolved, modern Sierra models switched to a solid state Turn Signal Flasher that uses electronic timing chips and transistors, a design that handles multiple lamps or low current LEDs without depending on heat. The two styles share the same mission, yet each Turn Signal Flasher creates pulses differently, with thermal units using physical expansion and electronic units relying on precise circuits. If the lights stop blinking or work erratically, checking the Turn Signal Flasher often pinpoints the fault before chasing bulbs or switches. Choosing the right replacement is simple, matching the flasher type to your GMC wiring and any LED upgrades ensures the Sierra indicators continue to flash reliably.
Each OEM GMC Sierra Turn Signal Flasher we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.
GMC Sierra Turn Signal Flasher Parts Questions & Experts Answers
- Q: What Should You Do If Turn Signal Flasher and Hazard Flasher Function Fails on GMC Sierra?A:The turn signal and hazard flasher relay on certain vehicles is handled by the Body Control Module (BCM). If a bulb on one side of the vehicle flashes faster than normal while the other bulb on the same side doesn't light up, it's likely that the non-flashing bulb is faulty and needs to be replaced. If none are flashing, replace the Body Control Module.
