Seat ALHAMBRA Owner's Manual page 238

236 Trailer towing
Trailer electric socket
The electric connection between vehicle and trailer is a 13-pin socket. If the
trailer plug has seven pins, an adapter cable must be used.
Trailer rear lights
Check the trailer rear lights to ensure they work correctly and remain legal.
Ensure that the trailer does not use more than the maximum power
page 233.
Trailer connected to the antitheft alarm:
When a vehicle comes from the factory fitted with an antitheft alarm and
tow hitch.
When the trailer is connected to the vehicle using the socket.
When the vehicle and trailer electrical systems work correctly and are not
damaged.
When the vehicle is locked using the vehicle key and the antitheft alarm
is turned on.
When the vehicle is locked, the alarm is triggered when the electrical connec-
tion between the vehicle and the trailer is removed.
Always turn off the anti-theft alarm system before connecting or discon-
necting a trailer. Otherwise, the tilt sensor may erroneously activate the
alarm.
WARNING
Erroneous or unsuitable connection of electric cables may supply energy to
the trailer causing an anomaly in the vehicle electronics that could result
in an accident with serious consequences.
All work on the electrical system must be carried out only by a
specialist workshop.
Never connect the trailer's electric system to the electrical connections
of the rear lights or any other power sources.
Caution
Do not leave the trailer connected to the vehicle when parked; place it on its
support wheel or its supports. For example, when changing the load or a
puncture, the vehicle will be pushed up or down. The force acting on the tow
hitch and the trailer could damage the vehicle or the trailer.
Note
In case of a fault in the vehicle or trailer electrical system or in case of
problems with the antitheft alarm system, have the system checked by a
specialist workshop.
If the trailer accessories use energy from the socket when the engine is
stopped, the battery will be discharged.
For technical reasons, trailers fitted with rear LED lights cannot be
connected to the antitheft alarm system.
If the vehicle battery is running low, the electrical connection with the
trailer is automatically cut off.
With the engine running, the electrical equipment on the trailer will
consume power.
Loading the trailer
Trailer weight / drawbar load
The trailer weight is the load that the vehicle can pull
is the vertical weight of the trailer hitch on the tow hitch ball
The figures for trailer weights and draw bar weights given on the data plate of
the towing bracket are for values of this model only. The correct figures for
your specific vehicle, which may be lower than these figures for the tow hitch,
are given in the registration documents. The instructions in the official
vehicle documents take precedence.
. The drawbar load
page 240.