Service and Maintenance
See also:
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 ...
Backglass Antenna
The AM-FM antenna is integrated
with the rear window defogger,
located in the rear window.
Make sure that the inside surface of
the rear window is not scratched
and that the lines on the glas ...
Engine Oil Additives/Engine
Oil Flushes
Do not add anything to the oil.
The recommended oils with the
dexos specification and displaying
the dexos certification mark are all
that is needed for good performance
and engine protection ...






