Removing the dashboard or instrument panel from a Pontiac G6 can involve removing the trim panels alone or the entire instrument panel. There are several interior components directly connected to the dash due to the car's compact size. You will need to remove a number of these components, and exactly what you have to remove can vary depending on the model year of the car.
Have the car's air conditioning system discharged at the dealer's service department or at another shop with a licensed air conditioning technician.
Drain the engine coolant at the radiator, opening the drain fitting at the bottom of the radiator and the cap on the reservoir and letting the coolant pour into a large container.
Disconnect the battery's negative cable, loosening the cable clamp nut with a socket or crescent wrench.
Place the transmission in Neutral (you need to press the brake pedal with the ignition switch on), then pull the center trim panel rearward on the bottom. Pry the panel's clips off as you move upward and and remove the panel.
Pop the triangular-shaped hazard flasher switch out of the instrument panel -- you can reach the back of the switch and push it out once you remove the center panel -- and unplug the switch's electrical connector.
Tilt the upper steering column cover up and release the four lock rings to remove the upper cover. Remove the three fasteners for the lower cover -- you need a screwdriver with a hex socket -- tilt the column lever down and remove the lower cover.
Remove the three screws for the instrument cluster bezel with a Philips screwdriver and pry the bezel loose.
Pry off the trim panels at the sides of the instrument panel with a trim stick or similar dull, flat-bladed tool. Unscrew and remove the cover at the bottom of the panel with the screwdriver.
Open the small cover on the A-pillar trim panels, remove the screw within the cover using your Philips screwdriver and pry off the panels with the trim stick. Pry around the upper trim panel and remove it.
Remove the fasteners for the knee bolster below the steering wheel with the screwdriver -- you may also need to remove the data link connector by pressing its side tabs and disconnecting it -- and remove the panel.
Open the glove box and remove the mounting screws at the top corners of the compartment using the Philips screwdriver to remove it.
Disconnect the heater hoses and the refrigerant lines from the firewall using pliers and/or a wrench (a socket wrench may work best). Plug the fittings to block contaminants from entering.
Unbolt the heater module at the dashboard plate's front end using the socket wrench.
Disconnect all of the electrical connectors on the instrument panel. Pry off all the switches from the panel using your trim stick.
Slide both of the front seats all the way to the rear.
Remove the two mounting fasteners for the steering column -- these will likely require the hex-socket screwdriver -- and let the column rest near the floor.
Unbolt the panel's center support bracket from the floor with your wrench.
Remove the mounting fasteners at both ends of the instrument panel with the wrench/Philips screwdriver and pull the panel away. Disconnect any remaining electrical connectors that were previously concealed and remove the panel.
