Brake lights are not working and can't shift out of park

Neutral safety switch can cause similar occurrences

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There are 2 different vehicles listed on your question. One is a Chevy Blazer, the other is a 2007 Ford Focus. Don't know which is the problem.

Is this a automatic or a stick shift? I will give you the information about an automatic Ford Focus.

The gearshift is locked into Park until you press on the brake pedal. Sometimes for stick shifts, the clutch pedal has the release. Either way, the release signal unlocks the gearshift. The position of the switch on either the brake pedal lever or clutch lever can be bumped by the Drivers feet.

These switches as well as the release on the gearshift must be aligned (timed), adjusted, etc. so that they work properly. Sometimes this is as simple as looking under the dash and securing the loose switch back on its holder on either the brake pedal or clutch lever.

The other part of this question can be internal to the transmissions or binding in the shift cables or rods.

Somewhere here I hope you have the answer you needed the first time it was answered.

Here is the Ford diagrams that you could to check(click for zoom)...













If it only lights up the tail lights when its in RND21 but works correct in park then I believe your looking at a internal shorted brake shift interlock on the shifter back feeding and sending power back to the brake switch and turning the lights on. I would access the shifter assembly and depin the wire I am pointing to and reconnect the connector and see if the brake light issue stops. You will need to manually shift it out of park or temporarily attach this wire to get it out of park for the test.






Check it and send us your comments.

The car is probably on a steep hill and a lot of pressure is on the park pawl in the automatic transmission. If this is the case, a hard sudden pull should release it. Make sure the brake is on. When parking on a hill in the future use the parking brake before placing the lever in park.

Sounds like you need to replace or adjust the brake light switch on the brake pedel mount.

YEP BRAKE LIGHT SWITCH FUSE IS BLOWED.WHEN ITS BLOWED IT WILL KEEP BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID FROM WORKING.YOU CANT GET CAR OUT OF PARK.IT NEEDS POWER TO WORK.FUSES BLOWS AT BRAKE SWITCH NO POWER.YOU WILL NOT GET IT OUT OF PARK.SO CHECK FUSE THAT COULD BE YOUR PROBLEM.

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.

it's under a dime size cover on your console near the shifter. But, your brake/shift interlock solenoid is not working. either a fuse or the solenoid is bad. see owner manual for lcoation of over ride.

Most common is a failing brake light switch. If the brake lights don't come on when the shifter is stuck and they work when the shifter works you need a new switch.

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