Kia Optima Hybrid: Charging System / Auxiliary 12V Battery Description and Operation

Description
1.
The maintenance-free battery is, as the name implies, totally maintenance free and has no removable battery cell caps.
2.
Water never needs to be added to the maintenance-free battery.
3.
The battery is completely sealed, except for small vent holes in the cover.

   
After disconnecting then reconnecting the battery negative cable, reset some parts that require the reset procedures. (Refer to BE group - "General Information")
Auxiliary 12V Battery Components and Components Location

Components 1. Battery tray2. Auxiliary 12V Battery3. Battery upper bracket ...

Auxiliary 12V Battery Repair procedures

Removal and Installation 1. Disconnect the battery negative terminal (B) first, then the positive terminal (A). Tightening torque : (+) terminal (A) : 7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft) (-) ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Transaxle Control Module (TCM) Repair procedures


Inspection TCM Problem Inspection Procedure 1. TEST TCM GROUND CIRCUIT: Measure resistance between TCM and chassis ground using the backside of TCM harness connector as TCM side check point. If the problem is found, repair it. Specification: Below 1? 2. Test TCM Connector: Disconnect the TCM connector ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Auto Head Lamp Leveling Unit Repair procedures


Inspection 1. Ignition "ON". 2. Turn on the head lamp switch. 3. Check for operation. If the aim of the head lamps changes smoothly when the head lamp leveling switch is turned. 4. If the operation does not work well, inspect the connector and terminals to be sure they are all making good contact. If ...

© 2025 Copyright www.koptimatfhev.com