Transmission cooler contamination — dealer-confirmed cross-nameplate defect
Transmission burnout requiring full replacement
Check engine light: On
The internal transmission cooler inside the radiator fails, allowing coolant to contaminate the transmission fluid, resulting in transmission burnout requiring complete replacement. Critically, one complainant explicitly quotes a Nissan dealer noting 'a large number' of failures with this exact same issue across the Frontier, Xterra, AND Pathfinder.
About $5,100
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Rear axle seal leaks onto brake components
Differential fluid leaks onto rear brakes, reducing braking friction
Check engine light: On
Differential fluid persistently leaks onto rear brake components, creating a direct safety hazard from oil-contaminated brake surfaces. Failures recur roughly every 35,000-40,000 miles, with some owners reporting 3-5+ replacement cycles — indicating the underlying seal design, not just an individual part, is inadequate for this application.
recurring roughly every 35,000 – 40,000 mi
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Exhaust manifold cracking — cabin fume intrusion
Exhaust fumes into the cabin, abnormal odors, clicking sounds
Check engine light: On
Exhaust manifold cracking/fracturing allows exhaust fumes into the cabin, accompanied by abnormal odors, clicking sounds, and loud rattling. A recall/warranty program exists but is capped at 8 years/80,000 miles — expired for many vehicles given failure mileages documented up to 214,000 miles.
documented from 35,000 up to 214,000 mi
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Brake system issues
Pedal failure, metal brake line ruptures, warped rotors, brake judder
Check engine light: On
Brake pedal failures with loss of stopping power; metal brake line ruptures; warped rotors at low mileage; 'brake judder' (vibration above 50 mph).
as early as 20,000 mi (warped rotors)
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Engine/cooling and electrical fire-risk issues
Tailpipe rusting and detaching, melted wire bundles near the exhaust
Check engine light: On
Tailpipe rusting and detaching from the muffler; melted wire bundles near the exhaust causing electrical failures, a separate fire risk from the transmission contamination described above; radiator coolant loss.
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Transmission control and 4WD issues
Locking in LOW 4WD, loss of reverse, limp mode
Check engine light: On
Transmission locking in LOW 4WD gear, loss of reverse functionality, vehicle stuck in limp mode, and an intermittent bumping sensation during braking. Some owners report recurring identical transmission issues even after a dealer repair.
$150 – $1,400 most $150 – $50025 – 198,000 mi
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Catalytic Converter Damage Due to Weak or Failing Fuel Pump
Catalytic converter damage due to a weak or failing fuel pump
Check engine light: On
Catalytic converter damage due to a weak or failing fuel pump. This is among the more frequently reported issues on this generation, with 32 owner reports on file.
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Corrosion Due to Water in Connector Between Engine and Wiring Harness
Corrosion due to water in the connector between the engine and wiring harness
Check engine light: Off
Corrosion due to water in the connector between the engine and wiring harness. This is among the more frequently reported issues on this generation, with 27 owner reports on file.
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Fuel Pump Failure After Extended Driving Causing Acceleration Issues
Fuel pump failure after extended driving, causing acceleration issues
Check engine light: Off
Fuel pump failure after extended driving, causing acceleration issues. This is among the more frequently reported issues on this generation, with 17 owner reports on file.
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Failing Navigation Unit May Display Disc Error on Screen
Failing navigation unit displays a disc error on screen
Check engine light: Off
Failing navigation unit displays a disc error on screen. This is among the more frequently reported issues on this generation, with 13 owner reports on file.
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A Nissan dealer is quoted in owner complaints describing "a large number" of transmission failures from the same coolant-contamination defect across the Frontier, Xterra, AND Pathfinder, a failure owners call the 'strawberry milkshake.' A separate and serious problem is rear axle seal leaks landing directly on brake components, reducing braking friction — a direct safety hazard recurring roughly every 35,000-40,000 miles.