Set Speed Does Not Cancel When The Brake Pedal Is Pressed

Set speed does not cancel when the brake pedal is pressed

Do the brake pedal position switch test (M/T model) Testing and Inspection.

Do the cruise control input test Component Tests and General Diagnostics.
Test the cruise brake pedal position switch signal input (M/T model).
Test the idle stop switch signal input (CVT model).

Check for PGM-FI DTCs Initial Inspection and Diagnostic Overview.

Also check for

Short to power on the BRN wire

Also check for

Faulty brake pedal position switch (M/T model)

Also check for

Faulty idle stop switch (CVT model)