* Low brake fluid level. If the brake fluid level is low, it can cause the brake light to come on. This is because the brake fluid is used to actuate the brakes, and if there is not enough fluid, the brakes will not be able to function properly.
* Faulty brake light switch. The brake light switch is a sensor that tells the vehicle's computer when the brakes are being applied. If the brake light switch is faulty, it can cause the engine light to come on.
* ABS brake system malfunction. The ABS brake system is a safety feature that helps to prevent the wheels from locking up during braking. If there is a malfunction in the ABS brake system, it can cause the engine light to come on.
If the engine light comes on when you apply the brakes hard in your Toyota Tundra, it is important to have the vehicle diagnosed by a qualified mechanic to determine the cause of the problem.
Here are some additional tips for maintaining your Toyota Tundra's brakes:
* Inspect the brake fluid level regularly and add fluid as needed.
* Have the brake pads and rotors inspected regularly and replaced as needed.
* Have the brake system flushed and bled every few years.
* If you experience any problems with your brakes, such as a spongy pedal or a grinding noise, have the vehicle inspected by a qualified mechanic immediately.
