Emission Control System
The emission control system of your vehicle is covered by a written limited warranty. Please refer to the warranty information contained in this manual and the warranty information booklet in your vehicle.
Your vehicle is equipped with an emission control system that meets all applicable emission standards. There are three emission control systems as follows.
(1) Crankcase Emission Control System
(2) Evaporative Emission Control System
(3) Exhaust Emission Control System
To ensure that the emission control systems operate properly, it is recommended that your vehicle be inspected and serviced by an authorized HYUNDAI dealer in accordance with the maintenance schedule in this manual.
NOTICE
For Inspection and Maintenance Test (with Electronic Stability Control (ESC))
- To prevent the vehicle from stalling during a dynamometer test, turn off the Electronic Stability Control (ESC) system by pressing the ESC button (the ESC OFF indicator will illuminate).
- After the dynamometer test is completed, turn the ESC system back on by pressing the ESC button again.
1. Crankcase Emission Control System
The Positive Crankcase Ventilation system prevents air pollution from crankcase gases being released into the atmosphere. This system supplies fresh, filtered air to the crankcase through the air intake hose. Inside the crankcase, the fresh air mixes with blow-by gases, which then pass through the PCV valve into the intake system.
2. Evaporative Emission Control System, Including Onboard Refueling Vapor Recovery (ORVR)
The evaporative emission control system is designed to prevent fuel vapors from escaping into the atmosphere. The ORVR system is designed to route vapors from the fuel tank to the canister during refueling at a gas station, preventing fuel vapors from leaking into the atmosphere.
Canister
Fuel vapors generated inside the fuel tank are absorbed and stored in the onboard canister. When the engine is running, the absorbed fuel vapors are drawn from the canister into the intake manifold through the Purge Control Solenoid Valve.
Purge Control Solenoid Valve (PCSV)
The Purge Control Solenoid Valve is controlled by the Engine Control Module (ECM). When the engine coolant temperature is low during idle, the PCSV closes so that evaporated fuel does not enter the engine. After the engine warms up during normal driving, the PCSV opens to supply evaporated fuel to the engine.
3. Exhaust Emission Control System
The Emission Control System is a highly efficient system that controls exhaust emissions while maintaining good vehicle performance. When the engine starts or fails to start, excessive attempts to restart the engine may damage the emission control system.
Engine Exhaust (Carbon Monoxide) Precautions
• Carbon monoxide may be present with other exhaust gases. If you smell exhaust fumes of any kind inside your vehicle, drive with all windows fully open. Have your vehicle inspected and repaired immediately.
WARNING
Engine exhaust contains carbon monoxide (CO). Although colorless and odorless, it is dangerous and may cause death if inhaled. Follow the instructions on this page to avoid carbon monoxide poisoning.
WARNING
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust and many vehicle components and parts, including components found in the vehicle interior, contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. In addition, certain fluids contained in vehicles and some component wear products contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
- Do not operate the engine in enclosed or confined areas (such as garages) longer than necessary to move the vehicle into 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 extended periods with the engine running.
- When the engine stalls or does not start, excessive cranking may damage the emission control system.
Catalytic Converter Operating Precautions
WARNING
The exhaust system and catalytic converter are very hot during and immediately after engine operation. To avoid SERIOUS INJURY or DEATH:
- Do not park, idle, or drive the vehicle over or near flammable objects such as grass, vegetation, paper, leaves, etc. The hot exhaust system may ignite flammable objects under your vehicle.
- 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, and do not cover the vehicle for rust protection. Under certain conditions this may present a fire hazard.
Your vehicle is equipped with a catalytic converter emission control device. To avoid damaging the catalytic converter and your vehicle, observe the following precautions:
- Use only UNLEADED FUEL for gasoline engines.
- Do not drive the vehicle when there are signs of engine malfunction, such as misfiring or noticeable loss of performance.
- Do not misuse or abuse the engine. Examples of misuse: coasting with the engine switched off and descending steep slopes in gear with the engine switched off.
- Do not run the engine at high idle speed for extended periods (5 minutes or more).
- Do not modify or tamper with any engine part or the emission control system. All inspections and adjustments must be performed by an authorized HYUNDAI dealer.
- Avoid driving with a very low fuel level. If you run out of fuel, this may cause engine misfiring and result in excessive load on the catalytic converter.
Test yourself
A quick Hyundai Palisade quiz: every answer comes with an explanation and a link to the manual page.