MY 2001 FOCUS SE THE REAR STOP LIGHT STAY ON EVEN WITH THE BRAKE PEDAL RELEASED WHEN I SHIFT IT INTO PARK POSITION THE STOP LIGHTS GO OFF THIS IS WITH THE ENGINE IN THE ON/RUN POSITION? REPLACED THE STOP LIGHT SWITCH AS SAME THING. ANY ADVICE WOULD BE APPRECIATED.

Many cars, I presume the Hummer also will not let you shift out of Park unless the Brake pedal is depressed. Most do this by an electronic interlock with the brake light switch. Yours is broke. Either the brake light switch has moved out of position or is defective, or your brake pedal is not retracting to the full off position.

possibly the neutral safety switch connected to the brake pedal is bad. when you apply foot to brake , shouls hear a click with key in run position, this would be the safety solenoid retracting itself from shift linkage, allowing shift lever to move. try pumping rapidly, but easily the brake pedal to see if you can hear click, and or shift from park.

DW Mylin

check battery volts should be 12.5 volts,if yes check see if you have rear brake lights.if no replace brake light fuse.if brake light fuse okay a faulty brake light switch or shift lock solenoid not working,when you apply brake the electrical circuit goes to shift lock solnoid so you can get transmission out of park.shift solenoid located centerconsole located near gear position indicator.

This might work for you guy's replace the brake light switch
Easy step by step tutorial watch the video. im sure it will help.
MERCURY MARQUIS STUCK IN PARK
http://youtu.be/fgUn1TuHu-0

Broken wire where trunk lid opens

Did you adjust the brake light switch correctly? To adjust the brake light switch, first press the brake pedal down a few inches, then pull the switch plunger rod out of the switch toward the brake pedal arm, as far as you can without using excessive force. Next, return the brake pedal to the pedal stop position against the pedal stop and pull the brake pedal toward the rear to push the brake light switch actuating plunger rod into the switch housing limited by the travel of the brake pedal arm rear travel stop position. This procedure automatically adjusts the brake light switch correctly.
If the brake lights still don't turn off with the brake pedal released, check the brake pedal arm for sticking or binding that is preventing the brake pedal arm from returning fully to the pedal stop when the brake is released.

Without the brake lights working the shift interlock can't release. Turn the key just off the "locked" position and you should be able to shift to neutral and start the engine then shift to drive or reverse. Just don't shift back into park until you are parking the car to leave it.

sounds like the brake switch is either shorted or mal-adjusted behind the brake pedal and not opening

hiya if the rear lights are remaining on ? with no ignition it will be the brake lights staying on this is easily remendied/ checked by trypulling the brake pedal up by hand and see if lights go off ? if so then you will need to adjust the b/light switch which is positioned adjacent to pedal and can be screwed inwards towards the pedal untill the plunger on switch is pushed into the switch which puts lights off ensure pedal is fully up then adjust switch reconnect the wire/plug and press pedal slightly to ensure b/lights operate ok and then go off with pedal released ? on hyundai the brakelights do not req ignition on to operate hence more likely problem is as above good luck

The release for the shifter is tied to the brake lites, check to see if the brake lights work, if they don't then test the brake light switch at the top of the brake pedal, if it lights a test lite when you press the brake it is ok, in that case you need to check the little solenoid that pulls the cable to unlock the shifter, it is bolted to the top of the steering column, in order to get at it you will have to unbolt the column and drop it dow.