Brake Warning Light (Red)

How to Fix It

1. Release the parking brake fully.

   On Hyundai models with a traditional lever, pull up slightly then press the button while lowering the lever fully. On models with an electronic parking brake (EPB button), press the button while pressing the brake pedal to release. A partially engaged parking brake triggers the warning light and causes the rear brakes to overheat.

2. Check the brake fluid level.

   The brake fluid reservoir is a white or yellow translucent container under the hood near the firewall. Confirm the level is between MIN and MAX. Hyundai vehicles use DOT 3 or DOT 4 brake fluid — check the cap for the correct specification.

3. Inspect brake pad thickness.

   Look through the wheel spokes at the brake caliper — the pad visible above the caliper bracket should have at least 3mm of friction material. Worn pads cause the caliper pistons to extend further, pulling fluid from the reservoir and lowering the level. If pads are thin, replace them — the fluid level will normalize.

4. Check for brake fluid leaks.

   Inspect the ground under each wheel for brake fluid drips (clear to light yellow oily liquid). Hyundai Tucson and Santa Fe brake caliper guide pins and boots can corrode, allowing caliper seizure and fluid contamination — look for oily residue around the calipers. A brake fluid leak is a serious safety issue — do not drive with a confirmed leak.

5. Check the electronic parking brake on newer models.

   Hyundai Tucson (2021+), Santa Fe (2021+), and Ioniq models use an EPB with electric actuators on the rear calipers. If the EPB warning accompanies the brake warning, the EPB actuator may not have fully released. A Hyundai-compatible scanner can read EPB fault codes and perform an EPB actuator release procedure.