The emission control system of your vehicle is covered by a written limited warranty. Please see the warranty information contained in the Owner’s Handbook & Warranty Information booklet in your vehicle.
Your vehicle is equipped with an emission control system to meet all applicable emission regulations. There are three emission control systems, as follows:
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to ensure the proper function of the emission control systems, it is recommended that you have your vehicle inspected and maintained by an authorized HYUNDAI dealer in accordance with the maintenance schedule in this manual.
NOTICE
For the Inspection and Maintenance Test (with Electronic Stability Control (ESC) system)
1. Crankcase Emission Control System
The positive crankcase ventilation system is employed to prevent air pollution caused by blow-by gases being emitted from the crankcase. 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 induction 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 allow the vapors from the fuel tank to be loaded into a canister while refueling at the gas station, preventing the escape of fuel vapors 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 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 controlled by the Engine Control Module (ECM). When the engine coolant temperature 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 controls exhaust emissions while maintaining good vehicle performance.
When the engine starts or fails to start, excessive attempts to restart the engine may cause damage to the emission system.
Engine exhaust (carbon monoxide) precautions
For more information, refer to “Carbon Monoxide” at the beginning of Chapter 6.
WARNING
Engine exhaust gases contain carbon monoxide (CO). Though colorless and odorless, it is dangerous and could be lethal if inhaled. Follow the instructions on this page to avoid CO poisoning.
Operating precautions for catalytic converters
WARNING
The exhaust system and catalytic system are very hot while the engine is running or immediately after the engine is turned off. To avoid serious injury or death:
Your vehicle is equipped with a catalytic converter emission control device.
NOTICE
To prevent damage to the catalytic converter and to your vehicle, take the following precautions:
Failure to follow these precautions may void your vehicle warranty.
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: High Beam Assist Malfunction
and Limitations
System malfunction
When High Beam Assist is not working
properly, the "Check High Beam Assist
(HBA) system" warning message may
appear, and the warning light may
illuminate on the instrument cluster.
Contact an authorized HYUNDAI dealer.
Limitations of High Beam Assist
High Beam Assi ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Rear Cross-Traffic Collision
Warning Settings
Rear Cross-Traffic Safety
With the ignition switch ON, go to User
Settings > Driver Assistance > Parking
Safety > Rear Cross-Traffic Safety (for
cluster type) or Setup > Vehicle > Driver
Assistance > Parking Safety > Rear
Cross-Traffic Safety (for infotainment
sys ...