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2021 Kia Seltos Maintenance guide

2021 Kia Seltos Maintenance guide
v1.0Updated Jun 10, 2026·Ethan Miller4 Sources Analyzed3 Critical Recalls
MAINTENANCE SUMMARY

The 2021 Kia Seltos requires diligent attention to its engine, particularly concerning the critical piston oil ring defect identified in recalls. Owners must verify recall completion for engine health.

View Critical Issue: Engine Failure due to Piston Oil Ring Defect
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Reliability Score

7.3/ 10

Est. Annual Maintenance Cost

$400 - $600

TSBs & Recalls

13 TSBs | 3 Recalls

SummaryMaintenance & CostsCommon FailuresSymptoms & PreventionKeep ReadingFAQSources

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Key Takeaways

  • Prioritize verification of engine recall completion for the piston oil ring defect.
  • Adhere strictly to the 7,500-mile oil change interval with synthetic oil.

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Critical service intervals
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MethodologyHow we score →

Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.

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Shop Parts

Quick links for routine service and common repair parts.

  • 5W-30 Synthetic Oil
  • Oil Filter
  • Cabin Air Filter
  • Engine Air Filter
  • Engine Coolant

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