Typically, you’ll need a 3157-series dual-filament bulb for the tail/stop function, with the turn signal either sharing the same base (3157) or using the amber-variant 3157A depending on the trim and market. Always verify by inspecting the bulb in your unit or consulting the owner's manual.
Understanding the rear tail light bulbs
The 2017 Accent’s rear combination lamps are designed to provide tail, brake, and turn signals from the same housing. In most versions, two functions share the same 3157-series base; however some trims use an amber variant (3157A) for the turn signal. Confirming the right bulb ensures you get correct brightness and color and avoids damaging the socket.
Common bulb configurations you might encounter in the Accent tail lights are described below.
- Tail/Brake light: 3157 dual-filament bulb (provides tail and braking functions in one bulb).
- Turn signal: often the same 3157 base, or the amber variant 3157A depending on trim/market.
In practice, most 2017 Accents use a 3157-series bulb for the tail/brake, with the turn signal sometimes sharing the same bulb base or requiring the 3157A amber variant. The best practice is to verify by inspecting the bulb you remove or by checking the owner's manual or Hyundai parts listing.
How to confirm the correct bulb and replace it
Follow these steps to identify the exact bulb type and replace it if needed.
- Open the trunk and locate the tail light housing access point. You may need to remove a panel or cover to reach the bulb socket.
- Disconnect the electrical connector from the tail light socket, then remove the bulb by twisting the socket counterclockwise and pulling it out.
- Examine the bulb for markings that indicate the base type (for example, 3157 or 3157A). If markings are worn, compare the bulb’s base shape to reference images or bring the old bulb to an auto parts store.
- Purchase the correct replacement: a 3157-series dual-filament bulb is typical, or the amber 3157A variant if your turn signal requires it.
- Install the new bulb by inserting it into the socket, twisting to lock, reconnect the wiring, and test the tail, brake, and turn functions before reassembling the trim.
Conclusion: After replacement, test all tail light functions in daylight and at night, and recheck the assembly for moisture or misalignment to ensure long-term reliability.
Summary
For a 2017 Hyundai Accent tail light, the standard replacement is a 3157-series dual-filament bulb. The turn signal may use the same bulb base or require the amber variant 3157A depending on the vehicle’s trim and market. Always verify by checking the existing bulb, consulting the owner's manual, or confirming with Hyundai parts resources. If in doubt, bring the old bulb to an auto parts store for an accurate match.