What should you do if the brake pedal does not build up pressure? Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Maine Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance. Click here to compare rates from our insurance partner. Question What should you do if the brake pedal does not build up pressure? Answers Upshift. Downshift. Hold the brake pedal down as far as it will go. Pump the brakes. Explanation If you lose pressure in a hydraulic brake system, one appropriate response is to shift down into a lower gear. This will help slow the vehicle. This questions appears in the following tests: District Of Columbia Class B Knowledge Test Massachusetts Class B Knowledge Test Mississippi Double Oregon Class A Knowledge Test