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2025 Mazda CX-90 Maintenance guide

2025 Mazda CX-90 Maintenance guide
v1.0Updated Jun 12, 2026·Daniel Wilson4 Sources Analyzed1 Critical Recalls
MAINTENANCE SUMMARY

The 2025 Mazda CX-90, with its 3.3L inline-six engine and 4-wheel drive, presents early-life reliability concerns, evidenced by a high TSB count and multiple recalls. Owners should prioritize verifying software updates for the Dash Electrical Supply Unit and Body Control Module, particularly the critical fuel gauge fix, and remain vigilant for electronic system anomalies.

Powertrain: Plug-in Hybrid (PHEV)

View Critical Issue: Fuel Gauge Inaccuracy
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Reliability Score

6.5/ 10

Est. Annual Maintenance Cost

$500 - $800

TSBs & Recalls

123 TSBs | 4 Recalls

SummaryMaintenance & CostsCommon FailuresSymptoms & PreventionKeep ReadingFAQSources

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Key Takeaways

  • Early-life reliability concerns are noted due to a high TSB count and multiple recalls.
  • Software updates for the Body Control Module and Dash Electrical Supply Unit are critical.

2 more takeaways unlock below

Critical service intervals
Common failure analysis
Symptoms and prevention guidance
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Full data sources and methodology
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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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Full ownership breakdown for the 2025 Mazda CX-90.

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Shop Parts

Quick links for routine service and common repair parts.

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

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