2009 Chevrolet Cobalt Owner's Manual - Page 341

If the vehicle only has a cigarette lighter, use the cigarette lighter. Do not pinch the power plug cord in the door or window. 7. Start the vehicle. The vehicle must be running while using the air compressor. 8. Press the on/off (D) button to turn the tire sealant and compressor kit on. The compressor will inject sealant and air into the tire. The pressure gage (E) will initially show a high pressure while the compressor pushes the sealant into the tire. Once the sealant is completely dispersed into the tire, the pressure will quickly drop and start to rise again as the tire inflates with air only. 9. Inflate the tire to the recommended inflation pressure using the pressure gage (E). The recommended inflation pressure can be found on the Tire and Loading Information label. See Inflation - Tire Pressure on page 5-62. The pressure gage (E) may read higher than the actual tire pressure while the compressor is on. Turn the compressor off to get an accurate pressure reading. The compressor may be turned on/off until the correct pressure is reached. Notice: If the recommended pressure cannot be reached after approximately 25 minutes, the vehicle should not be driven farther. The tire is too severely damaged and the tire sealant and compressor kit cannot inflate the tire. Remove the power plug from the accessory power outlet and unscrew the inflating hose from the tire valve. See Roadside Assistance Program on page 7-8. 10. Press the on/off button (D) to turn the tire sealant and compressor kit off. The tire is not sealed and will continue to leak air until the vehicle is driven and the sealant is distributed in the tire, therefore, Steps 11 through 17 must be done immediately after Step 10. Be careful while handling the tire sealant and compressor kit as it could be warm after usage. 11. Unplug the power plug (C) from the accessory power outlet in the vehicle. 12. Turn the sealant/air hose (F) counterclockwise to remove it from the tire valve stem. 5-83