Inspect your spark plugs as described in chapter 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way.
Change to "winter weight" oil if
necessary
To keep locks from freezingKia Cee'd JD Service Manual: Troubleshooting
Standard Flow of Diagnostic Troubleshooting
Notes With Regard To Diagnosis
The phenomena listed in the following table are not abnormal.
Phenomenon
Explanation
System check sound
When starting the engine, a thudding soun ...
: Connected Vehicle – Troubleshooting - Vehicles With: Modem and SYNC 3
Modem
SYNC 3
...