open gas tank KIA OPTIMA PLUG-IN HYBRID 2017 Owners Manual

Emergency fuel filler lid release
If the fuel filler lid does not open using
the remote fuel filler lid release, you can open it manually. Remove the panel
in the cargo area. Pull the handle out
slightly.
In this case, slowly open the fuel tank cap, because the fuel tank may be
highly pressurized. If fuel leaks out, or
if air hisses out, wait until it disappears, open the fuel tank cap, and slowly re‐
fuel the vehicle. If you quickly pour fuel
into the fuel tank, the fuel may over‐ flow out of the fuel tank.
CAUTION
Do not pull the handle excessively,otherwise the luggage compartmentarea trim or release handle may bedamaged.
WARNING
nRefueling dangers
Automotive fuels are flammable ma‐terials. When refueling, please notethe following guidelines carefully.Failure to follow these guidelinesmay result in severe personal injury,severe burns or death by fire or ex‐plosion.•Read and follow all warnings pos‐ted at the gas station facility.
•Before refueling note the locationof the Emergency Gasoline Shut-Off, if available, at the gas stationfacility.
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•Before touching the fuel nozzle,you should eliminate potentiallydangerous static electricity dis‐charge by touching another metalpart of the vehicle, a safe distanceaway from the fuel filler neck,nozzle, or other gas source.
•Do not get back into a vehicle onceyou have begun refueling since youcan generate static electricity bytouching, rubbing or sliding againstany item or fabric (polyester, sat‐in, nylon, etc.) capable of produc‐ing static electricity. Static elec‐tricity discharge can ignite fuel va‐pors resulting in rapid burning. Ifyou must reenter the vehicle, youshould once again eliminate poten‐tially dangerous static electricitydischarge by touching a metal partof the vehicle, away from the fuelfiller neck, nozzle or other gasolinesource.
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5
Features of your vehicle

EMISSION CONTROL SYSTEM (IF EQUIPPED)
The emission control system of your vehicle is covered by a written limited
warranty. Please see the warranty in‐
formation contained in the Warranty & Maintenance book in your vehicle.
Your vehicle is equipped with an emis‐
sion control system to meet all applica‐
ble emission regulations.
There are three emission control sys‐ tems, as follows. 1. Crankcase emission control system
2. Evaporative emission control sys‐ tem
3. Exhaust emission control system
In order to assure the proper function
of the emission control systems, it is
recommended that you have your vehi‐ cle inspected and maintained by an au‐
thorized Kia dealer in accordance with
the maintenance schedule in this man‐ ual.
Caution for the Inspection and Mainte‐nance Test (With Electronic StabilityControl (ESC) system)
•To prevent the vehicle from misfiringduring dynamometer testing, turnthe Electronic Stability Control (ESC)system off by pressing the ESCswitch. •
After dynamometer testing is com‐pleted, turn the ESC system back onby pressing the ESC switch again.
1. Crankcase emission control
system
The positive crankcase ventilation sys‐
tem is employed to prevent air pollu‐ tion caused by blow-by gases being
emitted from the crankcase. This sys‐
tem supplies fresh filtered air to the crankcase through the air intake hose.
Inside the crankcase, the fresh air mix‐
es with blow-by gases, which then pass through the PCV valve into the induc‐
tion system.
2. Evaporative emission control
system
The Evaporative Emission Control Sys‐
tem is designed to prevent fuel vapors from escaping into the atmosphere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the on‐ board canister. When the engine is run‐
ning, the fuel vapors absorbed in the
canister are drawn into the surge tank through the purge control solenoid
valve.
Purge control solenoid valve (PCSV)
The purge control solenoid valve is con‐ trolled by the Engine Control Module
(ECM); when the engine coolant tem‐
perature is low during idling, the PCSV closes so that evaporated fuel is not
taken into the engine. After the engine
warms up during ordinary driving, the PCSV opens to introduce evaporated
fuel to the engine.
3. Exhaust emission control
system
The Exhaust Emission Control System
is a highly effective system which con‐
trols exhaust emissions while maintain‐
ing good vehicle performance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could affect
its performance, safety or durability and may even violate governmental
safety and emissions regulations.
In addition, damage or performance
problems resulting from any modifica‐ tion may not be covered under warran‐
ty.

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Maintenance