Kia Optima Hybrid: Heating,Ventilation, Air Conditioning

Virtual Engine Sound Speaker Repair procedures

Removal 1. Disconnect the negative(-) battery terminal. 2. Remove the front wheel guard. (Refer to the BD group - "Front bumper") 3. Remove the VESS speaker (A) after removing the bolts and connector. ...

General Safety Information and Caution

Safety Precaution     Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: CVVT (Continuously Variable Valve Timing) System Description and Operation

Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load. By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Speakers Repair procedures

Inspection 1. Troubleshooting for Speaker (1) Basic inspection of speaker Inspect the sound from speaker after verifying that the speaker mounting screws are removed and the wiring connector is connected to remove any possible vibration transmitted from body trims and surrounding parts. (2) Case Troubleshooting ...