The 2024 Telluride shares Kia's Lambda 3.8L V6 which has earned a concerning reputation for catastrophic internal engine failures, primarily bearing and piston failures, often under 100,000 miles. Otherwise solid platform, but the engine grenading issue overshadows everything else.
Catastrophic Engine Bearing/Rod Failure (Lambda 3.8L)
Occasional · high severityTypical onset: 40,000-90,000 mi
Symptoms: Knocking or ticking noise from lower engine block, especially at cold start, Metal shavings in oil on routine changes, Sudden loss of oil pressure followed by seizure, Check engine light with low oil pressure codes
Fix: Complete engine replacement or full rebuild required. Connecting rod bearings, main bearings, crankshaft inspection/machining, often pistons and rings too. 18-24 labor hours for complete teardown and rebuild or R&R with reman engine.
Estimated cost: $8,000-15,000
Transmission Oil Cooler Line Leaks
Occasional · medium severityTypical onset: 50,000-80,000 mi
Symptoms: Red transmission fluid pooling under vehicle near front, Low transmission fluid warnings on dash, Transmission slipping or delayed engagement if fluid loss is significant, Visible corrosion or wetness at cooler line fittings
Fix: Replace external oil cooler lines and fittings. Sometimes the quick-connect fittings crack or the lines corrode at mounting points. 2-3 labor hours including flush and refill.
Estimated cost: $400-700
Transmission Mount Failure
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Clunk or thud when shifting from Park to Drive or Reverse, Excessive vibration at idle, especially with AC on, Visible separation or tearing in rubber isolator, Transmission movement visible when engine is revved in Park
Fix: Replace transmission mount assembly. Straightforward but requires supporting transmission and powertrain. 1.5-2 labor hours.
Estimated cost: $250-450
Front Power Seat Track Mechanism Binding
Occasional · low severitySymptoms: Driver or passenger power seat moves slowly or intermittently, Grinding or clicking noise from seat base during adjustment, Seat stuck in one position, motor runs but no movement, NHTSA recall issued for seat track failures on some builds
Fix: Inspect for debris in tracks, lubricate if binding. Worst case: seat track assembly replacement. Check for active recall coverage first. 2-3 labor hours for full track replacement.
Estimated cost: $0-800
Driveshaft Center Support Bearing Wear (AWD Models)
Occasional · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Rumbling or grinding noise from underneath at highway speeds, Vibration felt through floor at 45-65 mph, Noise changes with acceleration/deceleration, Visible play or looseness in center bearing support
Fix: Replace driveshaft center support bearing assembly. Some techs replace entire driveshaft if bearing is pressed/not serviceable. 2-3 labor hours.
Estimated cost: $500-1,200
Fuel Filter Clogging (Premature)
Rare · medium severityTypical onset: 40,000-70,000 mi
Symptoms: Hesitation or stumble during acceleration, Hard starting after sitting overnight, Loss of power under load, especially uphill or towing, Fuel pressure lower than spec during diagnostic testing
Fix: Replace in-tank fuel filter assembly or external filter depending on configuration. Often requires dropping fuel tank. 2.5-3.5 labor hours.
Estimated cost: $300-600
Avoid unless you have comprehensive warranty coverage; the engine failure risk is a financial grenade you don't want to hold when it goes off.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.