ABS sensor issue. ABS tone ring issue. Transfer case issue. Worn out brakes. Failed caliper. Bad battery connection. Weak battery. Ground issue. Air in brake line. Brake pedal sensor failing. Failing brake line. Loose brake line connection. Failing brake booster.
"a TRACTION FAILED message will appear
when a Traction Control System or Anti-Lock
Brake System problem has been detected and the
vehicle needs service. See DIC Warnings and
Messages on page 196 for more information."