AC started blowing warm air

Hi Dean and thanks for using 2CarPros.com.

Honestly, if the pressure on the low side is too high, either the system is overcharged or the compressor is going bad. What I really need you to do is check the actual high and low side pressure using an AC manifold gauge set. I need to know both readings and the outside temperatures when you check. Here is a video that shows how the unit works and how to evacuate the system and recharge using both gauges.

The reason I need both readings is because if the low side it too high and the high side is too low, that usually indicates a compressor issue. If both sides are too high, chances are it is over charged.

Take a look through this link Often times, parts stores will lend or rent the unit needed.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Let me know the readings you get.

Take care,
Joe

It does sound like the brake light switch or a blown fuse. Here is how to over ride the park lock solenoid:

Brake Shift Interlock Override

Note: If it is necessary to use the brake shift interlock override procedure to move the selector lever out of the PARK position, it is possible that a fuse has blown and the brake lights are not operational. Before driving the vehicle, verify that the brake lights are working.
This vehicle is equipped with a brake shift interlock feature that prevents the selector lever from being moved out of PARK when the ignition is in the ON or RUN position unless the brake pedal is depressed. Perform the following if the selector lever cannot be moved out of the PARK position when the ignition is in the ON position and the brake pedal is depressed:

1. Apply the parking brake.

2. Turn the ignition key to the ON position.

3. Remove the center console side panel.
4. Locate the brake shift interlock override mechanism on the Brake Shift Interlock Actuator (BSIA).
5. Using an suitable tool, depress the brake shift interlock override mechanism on the BSIA (Brake Shift Interlock Actuator), apply the brake, depress the button on the selector lever and move the selector lever into NEUTRAL.
6. Start the vehicle.

7. To install, reverse the procedure.
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Here are the directions for replacing the switch. Pictures 3 and 4 correlate with these directions.

STOPLAMP SWITCH
Stoplamp Switch
Removal and Installation

NOTICE: Do not press, pull or otherwise move the brake pedal while installing the stoplamp switch and cruise control deactivation switch. Install these switches with the booster push rod attached to the brake pedal and with the brake pedal in the at-rest position. Installing these switches with the brake pedal in any other position results in incorrect adjustment and damages the switches.

1. NOTE: The stoplamp switch is located above the cruise control deactivation switch (if equipped).

Rotate the stoplamp switch clockwise approximately one-eighth turn to remove the stoplamp switch.

2. To install, reverse the removal procedure.
- Perform the brake pedal switch adjustment. For additional information, refer to Section 206-09
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Last, the brake light fuse is located behind the glove box in the fuse box. Fuse F18 is for the brake lights. The last pictures are of the fuse box and its components. Check this first.

Let me know if this helps.

Take care,
Joe

Happy to help, Dean. Let me know how things work out for you.

Take care,
Joe