It could be a bad ABS sensor. The power brake booster could be another cause.
To check the booster.
Before starting the car, pump the brake pedal until it is firm.
Keep your foot firmly on the pedal and start the car.
The pedal should, "drop" as the car is started.
If it does not, have it checked by a certified repair shop.
Usually ABS sensors are more problematic in motion. However, the ABS solenoid, (which takes over the brakes when activated), could be at fault.
Either way, brakes are too important to put off. Get them checked as soon as possible.
Let me know how it goes.
Friday, March 5th, 2021 AT 11:02 AM