Maintenance
Passenger Compartment Air Filter
The filter removes dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle.
The filter should be replaced as part of routine scheduled maintenance, see Maintenance Schedule. To find out what type of filter to use, see Maintenance Replacement Parts.
1. Open the glove box completely and remove the four screws along the upper
portion of the glove box.
2. When released, lower the upper portion of the glove box.
3. Locate the service door for the passenger compartment air filter.

4. Release the two latches holding the service door. Lower the service door.

5. Remove the old air filter.
6. Install the new air filter.
7. Close the service door and latches.
8. Reinstall the upper portion of the glove box.
See your dealer if additional assistance is needed.
See also:
Safety
The CTS sedan performed well in crash tests conducted by the Insurance
Institute for Highway Safety and the National Highway Traffic Safety
Administration. It received the IIHS' 2012 Top Safety Pi ...
When to Check Lubricant
Refer to Maintenance Schedule to determine how often to check the
lubricant. ...
Rear Vision Camera Error
Messages
Service Rear Vision Camera
System: This message can display
when the system is not receiving
information it requires from other
vehicle systems.
(Service Rear Vision Camera
System Icon): T ...






