Cadillac 2014 XTS Owner's Manual page 331

Ignoring these steps could result
in costly damage to the vehicle
that would not be covered by the
vehicle warranty. Trying to start
the vehicle by pushing or pulling it
will not work, and it could damage
the vehicle.
The vehicle has a battery cover
which must be removed to gain
access to the battery for jump
starting.
1. Clips
2. Pivot Points
To remove the battery cover:
1. Release the two rear clips (1).
2. Lift the battery cover up towards
the front of the vehicle to release
it from the pivot points (2) and
remove.
3. Reverse Steps 1 2 to reinstall
the battery cover.
The vehicle has a remote
positive (+) terminal under a trim
cover. It is under the battery cover
on the driver side of the engine
compartment. See
. You should always use
this remote positive terminal.
The vehicle has a remote negative
( ) ground location. It is located on
the driver side of the engine
compartment. See
. You should always use
this remote ground location, instead
of the terminal on the battery.
These posts are used instead of a
direct connection to the battery.