Toyota Tundra unexpected brake alert activation while driving at highway speed on Toyota Tundra

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Toyota Tundra owners report experiencing unexpected brake alert activations while driving at highway speeds, which can be alarming due to the flashing alerts on the head-up display and dashboard, accompanied by beeping sounds. These alerts may occur when the ABS light illuminates unexpectedly, subtly engaging the brakes. Additionally, the Brake Warning System (BWS) and Pre-Collision System (PCS) may display messages like "BRAKE!" indicating potential brake issues or a heightened risk of frontal collisions. Drastically changing tire sizes can also trigger these alerts, highlighting the importance of checking ABS parameters while driving. Furthermore, low brake fluid levels, particularly in colder temperatures, can cause the brake light to illuminate on the dashboard. It is recommended that affected owners have their Toyota Tundra inspected by a qualified mechanic to diagnose and resolve the underlying causes of these unexpected brake alerts.

1 person reported this problem
0 comments
Schedule Repair

Toyota Tundra vehicles with this problem

0 model year affected

Search for another problem

RepairPal Car Genius

Ask our experts about your Toyota.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts