Brake Pad Wear Light: What It Means and What to Do

The Brake Pad Wear Light means a pad-wear sensor has detected that the brake pads have worn down to their replacement limit.

Get it checked soon
Can I keep driving? Yes for a short time, but schedule a brake inspection promptly. If braking feels weaker, makes grinding noises, or the red brake light also comes on, have the brakes checked before driving further.
What it looks like
A circle with dashed or broken arcs on each side, representing a brake rotor and worn pads.
Color
Amber/yellow on most vehicles. Check your owner's manual, since symbols and colors vary by manufacturer.

Also called: brake pad warning light, brake wear indicator, worn brake pads light, circle with dashed lines light

Updated 2026-11-07 · By CarWhere Research

Why the brake pad wear light comes on

Electronic pad-wear sensors are embedded in one or more brake pads. When the pad material wears to a set thickness, the sensor contacts the rotor or breaks its circuit, and the light comes on. Some vehicles only have sensors on one axle, so the other pads should be checked too.

Common causes

  1. Brake pads worn to the replacement threshold
  2. Damaged or disconnected wear sensor wire
  3. Wear sensor not replaced or reconnected during a previous brake job
  4. Uneven pad wear from a sticking caliper

What to do when the brake pad wear light comes on

  1. Listen and feel for grinding, squealing, or reduced braking.
  2. Check that the red brake warning light is not also on.
  3. Schedule a brake inspection soon and have all pads and rotors measured.
  4. Replace the wear sensor along with the pads when required, since many are single-use.
  5. Confirm the light goes out after the repair.

Symbols and colors vary by manufacturer; your owner’s manual has the exact meaning for your vehicle.

Brake Pad Wear Light FAQ

What does the brake pad wear light mean?

The Brake Pad Wear Light means a pad-wear sensor has detected that the brake pads have worn down to their replacement limit.

Can I keep driving with the brake pad wear light on?

Yes for a short time, but schedule a brake inspection promptly. If braking feels weaker, makes grinding noises, or the red brake light also comes on, have the brakes checked before driving further.

How long can I drive after the brake pad wear light comes on?

It is a warning that pads are at the replacement limit, not an immediate failure, but braking safety depends on remaining material. Have them inspected and replaced promptly.

Why is the brake pad light still on after new pads?

Many wear sensors break when they trigger and must be replaced, or the sensor connector was not plugged back in. Some vehicles also require a reset.

Do all cars have a brake pad wear light?

No. Many vehicles use a metal tab that squeals against the rotor instead of an electronic sensor and warning light.

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Sources

General information written by CarWhere Research, not a diagnosis of your vehicle. When in doubt, stop in a safe place and follow your owner’s manual.