Chevrolet Cobalt 2009 Owner's Manual
![Chevrolet Cobalt 2009 manual cover](/images/ldkHHfzXmrsTKWEdxNUjpunj/thumbs/thumb175x175.webp)
Turn the ignition to the "ON" position without starting the engine. Press the "INFO" button until "Oil Life" is displayed. Then, press and hold the "RESET" button until the display shows 100%.
The 2009 Chevrolet Cobalt is recommended to use SAE 5W-30 engine oil. For best performance, use oil that meets GM Standard GM6094M.
Check the AC fuse and relay in the fuse box. Ensure the refrigerant level is adequate. If the problem persists, consider checking the AC compressor and electrical connections.
Common causes include a loose gas cap, faulty oxygen sensor, catalytic converter issues, or malfunctioning spark plugs. Use an OBD-II scanner to read specific error codes.
The 2009 Chevrolet Cobalt does not come equipped with a cabin air filter. The HVAC system is designed without a replaceable cabin filter.
The recommended tire pressure for the 2009 Chevrolet Cobalt is 30 psi for both front and rear tires. Always check the tire information placard on the driver's door jamb for confirmation.
Check the window fuse and inspect the switch for any visible damage. If both are functional, the window motor or regulator might need replacement.
Possible reasons include under-inflated tires, clogged air filters, or faulty fuel injectors. Regular maintenance and diagnostics can help identify the issue.
Connect the positive jumper cable to the positive terminal of the dead battery, then the other end to the positive terminal of the good battery. Connect the negative cable to the negative terminal of the good battery, and attach the other end to a grounded metal surface on the Cobalt. Start the working vehicle, then the Cobalt.
For optimal performance, replace the spark plugs every 100,000 miles, as recommended by Chevrolet for the 2009 Cobalt.