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On average, the cost for a GMC Sierra 3500 Turn Signal Bulb Replacement is $106 with $11 for parts and $95 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 2001 GMC Sierra 3500V8-8.1L | Service typeTurn Signal Bulb - Front Replacement | Estimate$137.29 | Shop/Dealer Price$152.87 - $177.09 |
| 2004 GMC Sierra 3500V8-8.1L | Service typeTurn Signal Bulb - Front Replacement | Estimate$117.29 | Shop/Dealer Price$132.88 - $157.12 |
| 2005 GMC Sierra 3500V8-6.6L Turbo Diesel | Service typeTurn Signal Bulb - Rear Replacement | Estimate$117.37 | Shop/Dealer Price$132.98 - $157.28 |
| 2003 GMC Sierra 3500V8-6.0L | Service typeTurn Signal Bulb - Rear Replacement | Estimate$117.37 | Shop/Dealer Price$132.96 - $157.24 |
| 2002 GMC Sierra 3500V8-8.1L | Service typeTurn Signal Bulb - Rear Replacement | Estimate$117.37 | Shop/Dealer Price$133.00 - $157.31 |
| 2006 GMC Sierra 3500V8-6.6L Turbo Diesel | Service typeTurn Signal Bulb - Front Replacement | Estimate$117.29 | Shop/Dealer Price$132.88 - $157.12 |
| 2005 GMC Sierra 3500V8-6.0L | Service typeTurn Signal Bulb - Rear Replacement | Estimate$122.37 | Shop/Dealer Price$137.85 - $162.04 |
| 2003 GMC Sierra 3500V8-8.1L | Service typeTurn Signal Bulb - Front Replacement | Estimate$122.29 | Shop/Dealer Price$138.12 - $162.54 |
The turn signal bulbs are located inside the light assemblies on all four corners of the car. The turn signal switch takes the drivers input and sends power to the corresponding bulb to inform other drivers that you intend to change lanes or make a turn.
If all four turn signal bulbs stop flashing or lighting up, it is likely that the turn signal flasher has gone bad, not the bulbs.
The mechanic should check all the lights in your car every time you get a major service.
Turn signals exist to alert your surroundings that your vehicle will be making a turn. When you press the lever on your steering column, front and rear turn signal bulbs flash, to let drivers around you know of your intention to make a turn. When a turn signal bulb dies, that turn signal will no longer light up. This means that your vehicle will not alert drivers in front of you (if it’s the front turn signal bulb) or behind you (if it’s the rear turn signal bulb) that you plan to turn, which makes your vehicle a safety hazard. Not having a functioning turn signal is also illegal, and carries a hefty fix-it ticket price.
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