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
Turn signals when towing a trailer
Parking on hillsKia Cee'd JD Service Manual: Specifications
Specifications
IMS Electrical System
Item
Specification
Rating voltage
DC 12V
Operating voltage
DC 9V ~ 16V
Operating temperature
-30°C ~ +80°C
...
Kia Cee'd JD Service Manual: Neutral Switch Specifications
Specifications
Item
Specified
Type
ON/OFF
Operation condition
Neutral position
Operation voltage
10V ~ 15V
Operation temperatures
-30 ...