The typical turn signal bulbs for a 2015 Chevy Silverado are 3157 amber bulbs.
In 2015 Silverado models (including the 1500, 2500HD, and 3500HD), front and rear signals generally use 3157 bulbs, though variations can occur with LED upgrades or different trim packages. Always verify with your owner's manual or by inspecting the existing bulb if you’re unsure.
Bulb numbers by location
Use this quick reference to identify the bulb numbers by location.
- Front turn signals (left and right): 3157 amber dual-filament bulbs.
- Rear turn signals (in the taillight assemblies): 3157 amber dual-filament bulbs.
Always confirm with the vehicle's manual or by inspecting the existing bulb, as aftermarket parts can differ.
LED and aftermarket considerations
If you plan to replace with LED bulbs or aftermarket headlight/taillight assemblies, ensure compatibility with the Silverado’s signaling system. Some upgrades may require load resistors to prevent hyper-flash or may use different base types. Consult the installation instructions or a dealership if in doubt.
Additionally, verify any local regulations regarding color and brightness when using aftermarket bulbs on public roads.
How to verify and replace the turn signal bulbs
Follow these steps to locate and replace the bulbs safely and correctly.
- Park the truck on a flat surface, engage the parking brake, and turn the ignition off. Open the hood to access the front light assemblies.
- Locate the turn signal bulb socket inside the front housing. If necessary, remove any dust cap or cover to reach the socket.
- Twist or unplug the bulb socket to release the bulb. Remove the old bulb from the socket for inspection.
- Check the bulb markings to confirm the number (look for 3157 on the base). If replacing, insert a new 3157 amber bulb with the correct orientation for dual-filament operation.
- Re-seat the socket, replace any covers, and test the turn signals by turning on the vehicle’s hazard lights or indicators to ensure proper function.
If the bulb does not illuminate after replacement, check fuses, wiring, and the turn signal relay. For LED upgrades, follow the manufacturer’s instructions regarding resistors or CAN-bus compatibility.
Summary
For 2015 Chevy Silverado models, the standard turn signal bulb is typically a 3157 amber bulb for both front and rear signals. Always verify by checking the existing bulb or the owner’s manual, especially if you have aftermarket lighting. When replacing, handle the bulbs carefully, ensure proper fit, and test your signals to ensure safe operation on the road.
Why is my blinker blinking fast on my Chevy Silverado?
Causes of a signal light blinking fast include: Bulb needs to be replaced. Bad ground connection. Weak voltage.
What part number are blinker lights for a 2015 Chevy Silverado?
7443LLB2
2014-2025 Chevrolet Silverado 1500 Turn Signal Light Bulb - Philips 7443LLB2 - Rear - PartsGeek.com.
What bulbs does a 2015 Silverado use?
Chevrolet Silverado 1500 (2014-2015) Bulb Size Chart
| Headlights (Low Beam) | H11 (H8 H9) |
|---|---|
| Parking Light | 7443 (7440) |
| Tail Light | 7443 (7440) |
| License Plate Light | T10 (194 168) |
| Trunk/Cargo Light | T15 (912 921) |
What does a 3157 bulb go to?
The 3156 bulb and 3157 bulbs are used as the tail lights of many modern vehicles, including Fords, Chevrolets, VWs, Acuras, Toyotas, and many more.