Kia Optima Hybrid 2017 Owner's Manual page 560

• Check for worn tires and loose wheel
lug nuts.
At least once a year:
• Clean the body and door drain holes.
• Lubricate the door hinges and checks,
and hood hinges.
• Lubricate the door and hood locks
and latches.
• Lubricate the door rubber weather‐
strips.
• Check the air conditioning system.
• Inspect and lubricate the automatic
transaxle linkage and controls.
• Clean the battery and terminals.
• Check the brake fluid level.
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