my Cadillac Escalade has a warning light for the brakes what does it mean

Symptoms

• Brake warning light illuminated on the dashboard
• Soft or spongy brake pedal feel
• Grinding or squeaking noise when braking
• Reduced braking efficiency
• ABS warning light may also be illuminated
• Brake fluid level may be low

Diagnostic Steps

1. Scan the vehicle's onboard computer using an OBD-II scanner to check for any stored trouble codes.
2. Inspect the brake fluid reservoir for fluid level and condition.
3. Examine brake pads and rotors for wear and damage.
4. Check brake lines for leaks or damage.
5. Inspect the brake master cylinder for any signs of failure or leaks.
6. Test the operation of the ABS system using a diagnostic tool.

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the parking brake is engaged.
• Gather necessary tools and parts.

2. Inspect and Replace Brake Fluid

• Remove the brake fluid reservoir cap.
• Inspect fluid for contamination or low levels.
• If low, add manufacturer-recommended brake fluid (DOT 3 or DOT 4).
• Replace the cap securely.

3. Inspect and Replace Brake Pads

• Tools Required: Jack and jack stands, lug wrench, socket set, torque wrench.
• Loosen lug nuts and lift the vehicle using a jack.
• Remove the wheel to access the brake assembly.
• Inspect the brake pads; if worn below the manufacturer’s specification, replace them.
• Remove caliper bolts and slide the caliper off. Replace pads and reassemble.
• Reinstall the wheel and torque the lug nuts to the manufacturer's specifications.

4. Inspect and Repair Brake Lines

• Check all visible brake lines for cracks, leaks, or corrosion.
• If any issues are found, replace the affected section of the brake line using a flare tool and proper connectors.
• Bleed the brakes after repair to ensure no air is present in the system.

5. Inspect and Replace Master Cylinder

• If the master cylinder is leaking or not functioning, remove and replace it.
• Disconnect brake lines and electrical connections.
• Remove mounting bolts and replace with a new master cylinder.
• Reconnect all lines and bleed the brake system.