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:
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Potential Issues
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after five days. OnStar cannot
perform Remote Door Unlock or
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vehicle has been off continuously
for five days. After five ...
Engine Compartment
Fuse Block
(CTS Coupe and Sedan)
The underhood fuse block is
located on the left side of the engine
compartment.
Lift the fuse block cover to access
the fuses.
The vehicle may not be equipped
with all of the fuses and rel ...






