Battery Terminal

Move back and forth to check that the battery terminals (A) are loose or corroded.
If the terminals are corroded, clean them.

Fig 1: Locating Battery Terminals
Courtesy of KIA MOTORS AMERICA, INC.

WARNING: If battery positive connection is loose, disconnect ground(GND) cable first before attempting to remove or tighten plus connection, to prevent personal injury.
If the battery clamp on battery positive (+) terminal is not seated securely:
1. Turn ignition switch OFF and disconnect the battery negative (-) terminal.
2. Tighten battery clamp (A) on battery positive (+) terminal
  Battery positive (+) terminal tightening nut :
  
  7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
  
  Fig 2: Locating Battery Clamp On Battery Positive (+) Terminal
  Courtesy of KIA MOTORS AMERICA, INC.
3. If the battery clamp on battery negative (-) terminal is not seated securely:
  1. Tighten battery clamp (A) on battery negative (-) terminal.
    Battery negative (-) terminal tightening nut :
    
    4.0 ~ 6.0 N.m (0.4 ~ 0.6 kgf.m, 3.0 ~ 4.4 lb-ft)
    
    Fig 3: Locating Battery Clamp On Battery Positive (-) Terminal
    Courtesy of KIA MOTORS AMERICA, INC.