Kia Optima 2018 Features and Functions Guide
![Kia Optima 2018 Sedan manual cover](/images/BeWJRfjDWJqqGGSvhJWGnTdF/thumbs/thumb175x175.webp)
To reset the tire pressure monitoring system, first ensure all tires are inflated to the recommended pressure. Then, drive the vehicle at speeds above 20 mph for at least 20 minutes. The system should automatically reset.
The recommended oil type for a 2018 Kia Optima is 5W-20 or 5W-30, depending on your driving conditions and temperature. Always refer to the owner's manual for specific recommendations.
To pair your smartphone, go to the Bluetooth settings on your phone and ensure it is discoverable. In the Optima's infotainment system, navigate to setup, then Bluetooth, and select 'Add New Device.' Follow the prompts to complete the pairing process.
If the engine light comes on, first check for any obvious issues such as a loose gas cap. If the light remains on, it is advisable to have the vehicle checked by a qualified technician as soon as possible to diagnose any potential issues.
The air filter should be inspected at every oil change and typically replaced every 15,000 to 30,000 miles, or as needed based on driving conditions.
Regular brake inspections are recommended. Brake pads should be replaced when they are worn to 2-3mm thickness. The brake fluid should be checked and replaced according to the maintenance schedule or if it appears discolored.
The 2018 Kia Optima typically does not have a user-accessible transmission dipstick. It is recommended to have the transmission fluid checked by a professional technician during regular maintenance.
If the air conditioning is not blowing cold air, check if the A/C setting is on and the temperature is set to a cold setting. If the issue persists, it could be due to low refrigerant levels, a faulty compressor, or a blocked condenser. It is advisable to have it checked by a professional.
The 2018 Kia Optima is not designed for towing. It is recommended to avoid towing with this vehicle to prevent damage to the powertrain and other components.
To improve fuel efficiency, maintain regular vehicle maintenance including timely oil changes, ensure tires are properly inflated, remove unnecessary weight, and drive smoothly, avoiding rapid acceleration and hard braking.