California DMV Permit Test (Class C)Vehicle Operation and MaintenanceEasy

During a pre-trip inspection, you notice that your vehicle's brake fluid reservoir is below the 'MIN' mark. What is the most appropriate action to take before driving?

  1. AIgnore it, as brake fluid levels naturally fluctuate and will correct themselves.
  2. BContinue driving and monitor the level, as it's only a minor issue.
  3. CTop off the brake fluid with engine oil to bring it to the correct level.
  4. DAdd the correct type of brake fluid to the 'MAX' mark and check for leaks.
Show answer & explanation

Correct answer: D. Add the correct type of brake fluid to the 'MAX' mark and check for leaks.

Low brake fluid can indicate a leak or worn brake pads, both of which can compromise braking ability. Adding the correct fluid and checking for leaks is crucial for safety.

Why the other options are wrong

  • A. Brake fluid levels do not self-correct; a low level indicates a potential problem.
  • B. Ignoring low brake fluid is unsafe and can lead to brake failure.
  • C. Engine oil is not compatible with brake fluid and can severely damage the brake system.

Brake Fluid Check

Checking the brake fluid level is a critical part of a pre-trip inspection to ensure safe braking performance. Low levels can indicate leaks or worn pads.

  • Check reservoir level against MIN/MAX marks.
  • Use only the manufacturer-specified brake fluid type.
  • Low levels often signal a leak or worn brake pads.

Memory trick: Low brake fluid means 'Stop and Fix,' not 'Go and Risk.'

More Vehicle Operation and Maintenance questions