3. Exhaust Emission Control System

The Emission Control System is a highly efficient system that controls exhaust emissions while maintaining good vehicle performance.

Vehicle Modifications

This vehicle must not be modified. Modifying your vehicle may affect its performance, safety, or durability, and may even violate federal safety and emission regulations.

In addition, damage or performance problems resulting from any modification may not be covered under warranty.

• Using unauthorized electrical devices may cause the vehicle to malfunction, damage wiring, discharge the battery, or cause a fire. For your safety, do not use unauthorized electrical devices.

Precautions for Engine Exhaust Gas (Carbon Monoxide)

• Carbon monoxide may be present along with other exhaust gases. Therefore, if you smell exhaust gas of any kind inside your vehicle, have it inspected and repaired immediately. If you ever suspect exhaust gas is entering your vehicle, drive it only with all windows fully open. Have your vehicle inspected and repaired immediately.

WARNING - Exhaust

Engine exhaust contains carbon monoxide (CO). Although it is colorless and odorless, it is dangerous and can be fatal if inhaled. Follow the instructions below to avoid carbon monoxide poisoning.

• Do not operate the engine in enclosed or semi-enclosed areas (such as garages) any longer than necessary to drive the vehicle in or out of the area.
• When the vehicle is stopped in an open area for more than a short time with the engine running, adjust the ventilation system (as necessary) to draw outside air into the vehicle.
• Never sit in a parked or stopped vehicle for any extended period of time with the engine running.
• When the engine stalls or will not start, excessive attempts to restart the engine may damage the emission control system.

Catalytic Converter Operating Precautions

WARNING! Fire

• The hot exhaust system may ignite flammable materials under the vehicle. Do not park, idle, or drive the vehicle over or near flammable materials such as dry grass, paper, leaves, etc.
• The exhaust system and catalytic converter system become very hot while the engine is running or immediately after the engine is turned off. Keep away from the exhaust system and catalytic converter, or you may get burned.

Also, do not remove heat shields around the exhaust system, do not undercoat the vehicle, or do not apply rust-proofing material to the vehicle. This may create a fire hazard under certain conditions.

Your vehicle is equipped with a catalytic converter, an emission control device.

Therefore, the following precautions must be observed:

• Be sure to refuel your vehicle according to the "Fuel Requirements" recommended in Chapter 1.
• Do not drive the vehicle if there are signs of engine malfunction, such as misfiring or noticeable loss of performance.
• Do not use the engine for purposes other than intended or abuse it. Examples of misuse include turning the ignition off and coasting downhill in gear with the ignition off.
• Do not run the engine at high idle speed for extended periods (5 minutes or more).
• Do not modify or tamper with any part of the engine or emission control system. We recommend that the system be inspected by an authorized Kia dealer.
• Avoid driving with a very low fuel level. Lack of fuel causes the engine to misfire, which can damage the catalytic converter.

Failure to observe these precautions may damage the catalytic converter and your vehicle. In addition, such actions may void your warranty.

Diesel Particulate Filter

The Diesel Particulate Filter (DPF) system removes soot from the exhaust gas. Unlike a disposable air filter, the DPF system automatically burns off (oxidizes) and removes accumulated soot depending on driving conditions. In other words, active regeneration by the engine control system and high exhaust gas temperatures caused by normal/high-speed driving conditions burn off and remove the accumulated soot.

However, if the vehicle is continuously driven on repeated short

trips or at low speeds for a long time, accumulated soot may not be removed automatically due to low exhaust gas temperature. When soot exceeds a certain amount, the malfunction indicator () illuminates.

When the malfunction indicator lamp illuminates or flashes, it may stop flashing by driving the vehicle at a speed above 60 km/h or in a gear higher than second at 1500 ~ 2500 rpm for a certain period of time (for about 25 minutes).

If the malfunction indicator lamp continues to illuminate or flash despite this procedure, we recommend that the system be inspected by an authorized Kia dealer.

If you continue driving with the malfunction indicator flashing for a long time, the DPF system may be damaged and fuel economy may deteriorate.

WARNING - Diesel Fuel (for vehicles with DPF)

Use only regulated automotive diesel fuel for diesel vehicles equipped with a DPF system.

If you use diesel fuel with high sulfur content (more than 50 ppm sulfur) or unspecified additives, the DPF system may be damaged and white smoke may be emitted.