2006 Kia Sedona Problems: 8 Known Issues

On the 2006-2012 Kia Sedona, on 2006-2012 Sedona vans the front lower control arms corrode from prolonged road-salt exposure and can fracture at the arm body, dropping the front suspension and causing immediate loss of steering control. Kia recalled the vans twice: NHTSA 13V-550 (Kia SC133) in December 2013 covered salt-belt-state vehicles with an inspection-and-rustproof remedy, and when that proved inadequate NHTSA 16V-387 followed in July 2016 with outright arm replacement on 2006-2007 vans and replacement-or-recoating on 2008-2012 vans. The two-campaign history matters: a van whose owner accepted only the 2013 rustproofing may still be carrying original arms.

On the 2002-2014 Kia Sedona, the Sedona is a heavy van on a passenger-car front hub, and front wheel bearings are one of its recognized weak points. Owners on the Kia forums report replacing three of four bearings on a single van, with the failure showing first as a hum or grind from one corner that gets louder with road speed and changes with steering load. NHTSA complaint records document 18 front-suspension wheel-bearing reports for the Sedona, including a 2005 van whose hub and bearing fractured and was left held together only by two bolts, and cases where the bearing disintegrated far enough for the hub assembly to separate. Removing the hub from the steering knuckle is notoriously difficult once the bearing has begun to seize, which drives the labor cost up.

On the 2006-2010 Kia Sedona, the Hydraulic Electronic Control Unit (HECU) of the ABS on 2006-2010 Sedona vans stays energized even after the ignition is switched off. Moisture entering the module causes an internal electrical short that can ignite an engine-compartment fire while the vehicle is parked and unattended. Kia recalled 228,829 Sedona and Sorento vehicles in 2020 under NHTSA 20V-088 (Kia SC186), covering Sedonas built 15 June 2005 through 15 July 2009. Because the fire risk exists with the vehicle off, owners were told to park outside and away from structures until the remedy was performed — a strong signal of how seriously NHTSA treated this.

On the 2006-2014 Kia Sedona, the 2nd and 3rd generation Sedona (2006-2014) is notorious for power sliding door cable failures. The steel cable that drives the power sliding door frays and eventually snaps, leaving the door inoperable or stuck partially open. The cable routing puts excessive stress on the cable at bend points. This was one of the most common complaints for these model years.

On the 2002-2014 Kia Sedona, sliding door upper and center rollers wear out, causing the door to bind, squeak, and become difficult to open or close. The latch mechanism also fails, preventing the door from fully closing or opening. Common on both manual and power door versions.

On the 2002-2021 Kia Sedona, the Sedona carries both a front and a rear evaporator, and the rear circuit is what makes its A/C failures distinctive. Long refrigerant lines run the length of the van underneath the floor, where they corrode and leak; the rear evaporator and its O-ring connections are additional leak points a typical front-only vehicle does not have. Separately, forum members report a specific electrical failure mode on the compressor: the clutch COIL goes open circuit, so 12 volts is present at the coil but the clutch never engages and the compressor never turns — a symptom that looks exactly like low refrigerant to a parts-store gauge set. The front condenser also sits fully exposed at the nose of the van and is commonly punctured by road debris.

On the 2002-2014 Kia Sedona, the alternator is positioned in a heat trap near the exhaust manifold, causing premature failure. The voltage regulator overheats, leading to undercharging or overcharging. Multiple alternator replacements within 100,000 miles are common.

On the 2002-2014 Kia Sedona, on the Sedona V6 the alternator sits directly below the front cylinder bank. When the front valve cover gasket hardens and weeps — a routine age-and-heat failure on these engines — the oil drips straight down onto the alternator, saturating the windings and brushes and destroying the charging system. NHTSA complaint records describe exactly this chain: front bank valve cover gasket leak, oil-soaked alternator, charging system inoperative. This is the mechanical root cause behind a large share of Sedona alternator replacements, and it is why a replacement alternator installed without fixing the leak fails again. Oil cooler lines corroding and leaking is a second documented external oil-leak source on older vans exposed to road salt.