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November 8, 2025 Service bulletin

A/c compressor replacement (SA632)

Kia technical service bulletin TSB_ELE403 for 2025-2026 Kia Carnival.

Bulletin number
TSB_ELE403 (SA632)
Component
Electrical system
Summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: A/C COMPRESSOR REPLACEMENT (SA632) - This bulletin provides information to address air conditioning performance issues reported on certain 2025- 2026 model year Carnival (KA4) vehicles produced between December 1, 2024, and June 12, 2025. Customers may experience intermittent cooling or insufficient cooling at low blower speeds. The cause may be excessive clearance between the compressor piston and cylinder, which reduces refrigerant compression and results in inconsistent or weak cooling performance.

Owners of these vehicles have filed 93 complaints in the electrical category.

Vehicles covered

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