Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don’t shift down, you might have to use your brakes so much that they would get hot and no longer operate efficiently.
On a long uphill grade, shift down and reduce your speed to around 70 km/h (45 mph) to reduce the possibility of engine and transaxle overheating.
If your trailer weighs more than the maximum trailer weight without trailer brakes and you have an automatic transaxle, you should drive in D (Drive) when towing a trailer.
Operating your vehicle in D (Drive) when towing a trailer will minimize heat build up and extend the life of your transaxle.
CAUTION
Kia Cee'd JD Owners Manual: User Settings
In this mode there are 3 kinds of the submenu.
WARNING
Do not adjust the User Setting
while driving. You may lose your
steering control and cause severe
personal injury or accidents.
1. Stop the vehicle with the ignition
switch in the ON position or engine
running.
2. Press the ▲ ...
Kia Cee'd JD Service Manual: Floor Console Assembly Components and components location
Component Location
1. Floor console assembly
...