The 2015 Grand Caravan with the 3.6L Pentastar V6 is mechanically similar to the platform that's been around since 2008. While the engine is generally reliable, transmission cooling issues and cylinder head problems are the two major concerns that can lead to catastrophic failures if ignored.
Transmission Oil Cooler Failure Leading to Transmission Contamination
Common · high severityTypical onset: 60,000-110,000 mi
Symptoms: Transmission fluid appears milky or strawberry-colored (coolant mixing), Harsh shifting or delayed engagement, Check engine light with transmission codes, Radiator overflow with pink/red fluid
Fix: The external cooler (inside radiator tank or inline) develops internal leaks allowing coolant and ATF to cross-contaminate. Requires cooler replacement, full transmission flush (often multiple cycles), and filter change. If caught early: 3-4 hours labor. If transmission already damaged from contamination, you're looking at rebuild or replacement: 8-12 hours labor.
Estimated cost: $600-1,200 if caught early; $2,800-4,500 for transmission rebuild
Cylinder Head Gasket Failure and Left-Bank Head Cracking
Occasional · high severityTypical onset: 80,000-140,000 mi
Symptoms: White smoke from exhaust on cold start, Coolant loss with no visible leaks, Oil in coolant or coolant in oil, Misfires on cylinders 1, 3, or 5 (left bank), Overheating under load
Fix: The left cylinder head (driver side) on some 3.6L engines develops cracks between valve seats or gasket failures. Requires head removal, machining or replacement, new gaskets, and timing chain service while you're in there. Book time: 12-16 hours for both heads if doing the job properly with timing components.
Estimated cost: $3,500-5,500
62TE Transmission Shifting Issues and Solenoid Pack Failure
Common · medium severityTypical onset: 70,000-120,000 mi
Symptoms: Harsh 2-3 or 3-4 shifts, Transmission stuck in second gear (limp mode), Delayed engagement when shifting to drive, Check engine light with solenoid or pressure control codes
Fix: The solenoid pack or valve body develops wear, causing erratic pressure control. Drop the pan, replace solenoid pack and filter, update fluid. Some cases need valve body replacement. Labor: 4-6 hours for solenoid pack; 8-10 hours if valve body is involved.
Estimated cost: $800-1,800
TIPM (Totally Integrated Power Module) Failure
Occasional · medium severitySymptoms: Fuel pump not priming (no start), Wipers running on their own, Gauges going haywire or shutting off, Windows or locks operating randomly, Multiple electrical gremlins at once
Fix: The TIPM (fuse/relay box under hood) has known issues with internal relay failures, especially fuel pump relay. Chrysler extended warranty on some VINs. Replacement requires programming. Labor: 1.5-2 hours, but module is expensive.
Estimated cost: $800-1,400
Front Lower Control Arm Bushings and Ball Joints
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Clunking over bumps from front end, Wandering or loose steering feel, Uneven tire wear on inside edges, Steering wheel off-center after hitting potholes
Fix: The front lower control arm bushings wear out, and the ball joints develop play. Control arms come as complete assemblies (can't press bushings separately on most aftermarket parts). Replace both sides at once with alignment. Labor: 3-4 hours both sides.
Estimated cost: $600-1,000
Power Sliding Door Motor and Cable Failures
Common · low severityTypical onset: 50,000-90,000 mi
Symptoms: Door opens or closes halfway then reverses, Grinding or clicking noise during operation, Door won't latch properly, Error message on dash about door obstruction
Fix: The power sliding door cables stretch or fray, and motors wear out from heavy use. Requires door panel removal and cable/motor replacement. One door: 2-3 hours labor. Cables are sold in kits per door.
Estimated cost: $400-800 per door
Decent family hauler if transmission has been maintained and you can verify no head gasket history, but budget $2,000-3,000 reserve for eventual transmission or engine work after 100k miles.
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.