Tesla Model 3 Warning Lights: What They Mean

Red: stop or act now

Red brake indicator

A brake system fault is detected or brake fluid is low, if shown anytime other than briefly at startup.
What to do: Contact Tesla immediately. Keep firm, steady pressure on the brake pedal to stop when safe. PDF page 15

Parking brake indicator

The parking brake is engaged. PDF page 16

Amber: check soon

Amber brake indicator

A brake booster fault is detected or regenerative braking is unavailable. Hydraulic Boost Compensation may be active.
What to do: Keep the brakes pressed firmly to stop the vehicle when safe to do so. PDF page 79

ABS indicator

If lit other than briefly at startup, an ABS fault exists and ABS is not operating. Brakes still work but stopping distances may increase.
What to do: Contact Tesla. Drive cautiously and avoid heavy braking. PDF page 15

Amber parking brake indicator

The parking brake has an electrical issue, and a fault message appears on the touchscreen. PDF page 16

Summarized in our own words from the 2026 Tesla Model 3 owner's manual (AI-assisted; every light name was matched against its cited page 2026-10-18). Your vehicle may not have every light, and other years can differ. A red warning that stays on usually means stop safely and check: your manual has the final word.