Cadillac 2013 Caddilac CTS Owner's Manual page 334

2. Push the release lever (2) to
disengage the hook and push
the wiper arm (1) out of the
blade assembly (3).
3. Push the new blade assembly
securely on the wiper arm until
the release lever clicks into
place.
4. Replace the wiper cover.
Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.
For the proper type of replacement
bulbs, see
.
For any bulb changing procedure
not listed in this section, contact
your dealer.
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.