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 Service Manual: Water Temperature Control Assembly Repair procedures
Removal and Installation
1.
Loosen the drain plug, and drain the engine coolant. Remove the radiator
cap to drain with speed.
2.
Disconnect the battery negative terminal.
3.
Remove the air cleaner ass ...
Kia Cee'd JD Service Manual: Room Lamp Repair procedures
Inspection
Room Lamp
1.
Check that the switch operates properly after disconnecting the room
lamp connector (A).
Removal
Room Lamp
1.
Disconnect the negative(-) battery terminal.
...