RrAntilock and Brake light

The brake and ABS lights could be on because of a brake or ABS problem. The ABS system uses the hydraulic brake system in addition to the ABS components.
The high idle could be a vac leak or a problem with the idle air control valve. You could check the computer for trouble codes even if the warning light does not stay on.

Check the park brake switch and the fluid level in the brake master cylinder, both will cause the light to flash.

Water pump is a bit tired and not flowing as much to handle the higher work load. Give the radiator a good flush first and see what comes out. Might come good if you flush the donk as well.

ANTI LOCK BRAKE LIGHT AND BRAKE LIGHT COMES ON YOU HAVE BRAKE FAILURE.NOT SAFE TO DRIVE.YOU HAVE LEAKING BRAKE LINE OR LEAKING BRAKE CALIPER OR WHEEL CYLINDERS.THE MASTERCYLINDER OR ABS UNIT FAILED.DONT DRIVE VECHICLE NOT SAFE.

You have speed sensors that tell your computer what speed each wheel is going, and if one fails, this happens. The brake pulse is from the antilock brake system thinking a wheel is slipping.

YOU MAY HAVE A LOOSE BRAKE LIGHT SWITCH AT THE PEDAL, OR BAD EARTH WIRING AT THE CLUSTERS

Check the recalls. they adress this problem.

Isn't that mysterious? It took me a few weeks to figure it out. Look carefully under the break pedal. There is this device called a "break light switch". I hope that helps.

Check for moisture under the interior carpeting.
I have see it cause this when the wiring gets wet on the connections from the door switches. Other wise you are going to have to get a meter and check all the wiring to each door and the lamp switch.

I had it repaired: one of my sensors needed to be replaced. No more light!