The high mounted brake light, also known as the center high mount stop lamp (CHMSL), is an essential safety feature on your 2018 Hyundai Elantra. This light activates when you press the brake pedal, alerting drivers behind you that you are slowing down or stopping. If this light burns out, it can lead to safety issues and may even result in a traffic stop. Here’s how to replace it easily.

Understanding the High Mounted Brake Light

The high mounted brake light on the 2018 Hyundai Elantra is located at the rear of the vehicle, typically near the top of the rear window. It is crucial for enhancing visibility when braking, especially in low-light conditions.

Common Issues

  • Burnt Out Bulb: The most frequent issue with high mounted brake lights is a burnt-out bulb. Regular checks are advisable to ensure it functions properly.

  • Electrical Problems: Sometimes, issues may arise from electrical faults rather than just bulb failure. If the light does not work after replacing the bulb, further diagnostics may be necessary.

Replacing the High Mounted Brake Light Bulb

Replacing the high mounted brake light bulb in your 2018 Hyundai Elantra is a straightforward process that requires minimal tools. Follow these steps:

1. Open the Trunk: Access to the bulb is through the trunk area.

2. Locate the Bulb Socket: Look for the bulb socket behind the cargo area light housing at the top of the trunk.

3. Remove the Bulb Socket:

- Grasp the white plastic base of the bulb socket.

- Rotate it 1/4 turn counterclockwise and pull it straight out.

4. Replace the Bulb:

- Push down on the old bulb and rotate it 1/4 turn counterclockwise to remove it.

- Insert a new compatible bulb (usually type 1156) by aligning it with the socket and twisting it clockwise until secure.

5. Reinstall the Bulb Socket:

- Insert the bulb socket back into its housing and rotate it 1/4 turn clockwise to lock it in place.

6. Test the New Bulb: Have someone press down on the brake pedal to ensure that the new bulb lights up correctly.

Tips for Maintenance

  • Check Regularly: Inspect your high mounted brake light frequently to catch any issues early.

  • Use Quality Bulbs: Consider using LED bulbs for brighter illumination and longer lifespan compared to standard incandescent bulbs.

  • Avoid Touching Bulbs Directly: When handling new bulbs, avoid touching them with bare hands as oils from your skin can shorten their life.

FAQs About High Mounted Brake Light

    • What type of bulb does a 2018 Hyundai Elantra use?
      The high mounted brake light typically uses an 1156 bulb.
    • How often should I check my high mounted brake light?
      It’s best to check it every few months or whenever you perform routine vehicle maintenance.
    • Can I replace it with an LED bulb?
      Yes, LED bulbs can be used as replacements for brighter illumination and longer lifespan.