Kia Optima: If engine turns over normally but 
does not start - If the engine will not start - What to do in an emergency - Kia Optima TF 2011-2026 Owners ManualKia Optima: If engine turns over normally but does not start

1. Check fuel level.

2. With the ignition switch in the LOCK position, check all connectors at the ignition coil and spark plugs. Reconnect any that may be disconnected or loose.

3. Check the fuel line in the engine compartment.

4. If the engine still does not start, call an authorized Kia dealer or seek other qualified assistance.

If the engine doesn't turn over or turns over slowly
1. If your vehicle has an automatic transaxle, be sure the shift lever is in N (Neutral) or P (Park) and the emergency brake is set. 2. Check the battery connections to be sure they are clean ...

Emergency starting
Connect cables in numerical order and disconnect in reverse order. ...

See also:

Battery replacement
Type A Type B A battery should last for several years, but if the transmitter or smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use or ...

Installation
- Make sure that the IMS control switch connectors and related connectors are plugged in properly. ...

Instrument Cluster (Manual Transaxle)
...

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