The 2025 Dodge Hornet is essentially a rebadged Alfa Romeo Tonale on the STLA Medium platform, inheriting Stellantis PHEV and turbo-four tech with Italian-European engineering quirks. Too new for widespread long-term data, but early patterns mirror Tonale issues and typical Stellantis transmission/electronics gremlins.
Dual-Clutch Transmission Mount Failure (PHEV and 2.0T)
Occasional · medium severityTypical onset: 20,000-50,000 mi
Symptoms: Clunking or banging on acceleration or deceleration, Excessive vibration at idle in drive, Harsh shifts between 1st and 2nd gear
Fix: Replace transmission mount assembly, often requires lifting powertrain slightly. 2.5-3.5 hours labor. PHEV variant more complex due to hybrid battery positioning.
Estimated cost: $450-850
PHEV Charging System and Battery Management Faults
Occasional · high severitySymptoms: Check engine light with hybrid system warnings, Refusal to charge or charge interruption, Reduced electric-only range (drops from 32 miles to under 15), High-voltage battery cooling fan runs constantly
Fix: Often software-related requiring dealer flashes, but actual failures involve battery management unit replacement or coolant loop servicing. Diagnosis alone takes 1.5-2 hours; hardware fixes can take 6-8 hours due to battery pack access.
Estimated cost: $800-3,500
Transmission Oil Cooler Leaks
Occasional · high severityTypical onset: 30,000-60,000 mi
Symptoms: Transmission fluid pooling under vehicle (pink/red fluid), Delayed or harsh shifting when cold, Transmission overheating warning on dash, Milky transmission fluid indicating coolant cross-contamination
Fix: Replace transmission oil cooler and lines, flush transmission and cooling system if contaminated. 3-4 hours labor. Critical repair—cross-contamination destroys transmission quickly.
Estimated cost: $900-1,600
Variable Valve Timing (VVT) Actuator Failure
Common · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Check engine light with P0010, P0011, P0020, P0021 codes, Rough idle and poor cold-start performance, Rattling noise from front of engine on startup, Reduced fuel economy and sluggish throttle response
Fix: Replace VVT actuator solenoid (intake or exhaust side), clean oil passages. 2-3 hours labor. Often oil-sludge related—neglected oil changes accelerate failure.
Estimated cost: $400-750
Valve Cover Gasket and Cam Cover Oil Leaks
Common · low severityTypical onset: 50,000-90,000 mi
Symptoms: Oil smell from engine bay, especially after highway runs, Visible oil seepage around valve cover perimeter, Low oil level between changes, Oil on spark plug tubes causing misfires
Fix: Replace valve cover gasket, spark plug tube seals, and PCV valve assembly. 2.5-3 hours labor on 2.0T; PHEV slightly more complex.
Estimated cost: $500-850
Transmission Range Sensor and Shift Linkage Issues
Occasional · medium severityTypical onset: 25,000-70,000 mi
Symptoms: Gear display flashing or incorrect on dash, Vehicle won't start in Park (must wiggle shifter), Limp mode activation with no reverse or specific gear, Intermittent check engine light with P0705, P0706 codes
Fix: Replace transmission range sensor or adjust/replace shift linkage. 1.5-2 hours labor. Sensor replacement requires transmission fluid drop and pan access.
Estimated cost: $350-650
Wait another 2-3 years for real-world reliability data to mature—too new with Stellantis hybrid complexity and Alfa Romeo DNA makes this a gamble for used buyers without warranty coverage.
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.