The suggested interval for a brake fluid flush will vary depending on the specific type of vehicle and your driving habits, ranging from every two to five years or longer. Your owner’s manual will tell you the manufacturer’s recommended service interval for your vehicle.
If your brake fluid has not been flushed in a while, there are some red flags to look out for that can indicate it’s time for it to be done, including:
An illuminated anti-lock braking system (ABS) light: In newer vehicles, this light will come on if the brake fluid level is too low or the fluid is too dirty.
Brake pedal feels different: When brake fluid replacement is needed, the brake pedal will often feel very different when pressed. It may be tougher to press down or feel “spongy” when pressed.
Diminished brake pad effectiveness: Dirty or low brake fluid can negatively impact the effectiveness of your brake pads. If it takes longer to stop your vehicle because your brake pads are not working as well as before, this often means that the brake fluid should be flushed.
Unusual brake noises: Overly dirty or low brake fluid can cause odd noises, such as squealing or grinding, when braking.
Strong burning chemical smell: A strong burning chemical smell after braking can indicate overheating brakes due to dirty or low brake fluid. If this happens, immediately pull over safely and allow the brakes to cool. If you don’t, you can overheat the brake fluid and cause your brakes to lock up completely.
We recommend having a brake system inspection at every other oil change (roughly every 6,000 miles) to ensure that your brake fluid always stays in optimal condition.