The red " BRAKE " warning light in your dash comes on if the emergency brake /
parking brake is on , or if the BRAKE FLUID LEVEL in the brake master cylinder
( located in your engine compartment , near the firewall , on the drivers side
of the engine compartment ) IS LOW
On a 2002 Mercury Mountaineer : ( DOT 3 brake fluid meeting Ford specification ESA-M6C25-A ) According to the Owner Guide
According to the 2003 Mercury Mountaineer Owner Guide : ( DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )
DOT 3 brake fluid
DOT ( 3 ) brake fluid , if that is what you are asking ?
check brake fluid level.
In CT USA, a garage would charge 1 hour labor to replace the rear brake pads on that Mountaineer.
Go to dealer...and they will change them to early.
According to the 2000 Mercury Mountaineer Owner Guide : ( Yes , DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )
Should be common to the brake light circuit
Disc brakes ( with small brake shoes in the back of the rotors for your parking / emergency brake )
The "Service RSC" message on a Mercury Mountaineer indicates a problem with the Roll Stability Control (RSC) system, which helps improve vehicle stability during turns and sudden maneuvers. This warning can be triggered by issues such as a malfunctioning sensor, low brake fluid, or problems with the anti-lock brake system (ABS). It's advisable to have the vehicle checked by a qualified mechanic to diagnose and resolve the issue to ensure safe driving.
bad switch or possibly stuck switch