Kia Optima Hybrid: Button Engine Start System / Start/Stop Button Repair procedures

Disconnect the negative (-) battery terminal.
Using a screwdriver or remover, remove the crash pad side cover (A).
After loosening the mounting screws, then remove the crash pad lower panel (A).
Disconnect the crash pad lower switch connectors (A), diagnosis connector (B), crash pad under lamp connector (C).

Disconnect the start/stop button connector (D).

Remove the start/stop button (A) from the lower panel after loosening the mounting screws.

Remove the start/stop (A) after loosening the mounting screws.

Install the start/stop button.
Install the crash pad lower panel.
Start/Stop Button Components and Components Location

Component ...

Ignition Switch Assembly


Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: SS-A Solenoid Valve (ON/OFF) Repair procedures

Inspection 1. Turn ignition switch OFF. 2. Remove the air duct (A). Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft) 3. Remove the air cleaner assembly. (1) Disconnect the breather hose (A). (2) Disconnect the air intake hose (B) and then remove the air cleaner assembly (C). Tightening ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: 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 shock and electric leakage.     • Be sure to shut off the high voltage by removing the ...

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