It's important to have the correct hitch equipment. Crosswinds, large trucks going by, and rough roads are a few reasons why you’ll need the right hitch. Here are some rules to follow:
Kia Cee'd JD Owners Manual: Operating conditions
To operate:
Press the BSD switch with the Ignition
switch in the ON position.
The indicator on the BSD switch will illuminate.
When the vehicle speed exceeds 30
km/h (20 mph), the system will be activated.
To cancel:
Press the BSD switch again. The indicator
on the switch will go off.
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Kia Cee'd JD Service Manual: Cluster Ionizer Repair procedures
Inspection
1.
Press the VENT switch more then 4 times within 2 seconds while pressing
the OFF switch.
Display
Fail description
00
Normal
...