The 2010 Altima is known primarily for catastrophic CVT transmission failures and severe engine oil consumption issues on the 2.5L four-cylinder, making it one of the riskier used sedan purchases from this era despite its comfortable ride and decent fuel economy when healthy.
CVT Transmission Failure (RE0F10A)
Common · high severityTypical onset: 60,000-120,000 mi
Symptoms: Whining or grinding noise during acceleration, Shuddering when accelerating from stop, Hesitation or jerking between 15-40 mph, Sudden loss of power or refusal to move, Overheating transmission fluid, Check engine light with P0868 or P17F0 codes
Fix: CVT replacement or rebuild required. Nissan extended warranty to 120k miles on some units, but many fail outside coverage. Rebuilt unit takes 8-12 hours labor; new OEM takes 10-14 hours with fluid flush and cooler inspection. Aftermarket reman units available but quality varies significantly.
Estimated cost: $3,200-5,500
Excessive Oil Consumption (2.5L QR25DE)
Common · high severityTypical onset: 80,000-150,000 mi
Symptoms: Burning 1+ quart every 1,000 miles, Blue smoke from exhaust on cold start, Fouled spark plugs, Check engine light with misfire codes, Oil smell in cabin, Low oil pressure warning at highway speed
Fix: Caused by piston ring design and cylinder wall glazing. Proper fix requires engine rebuild with updated piston rings or short block replacement. Takes 18-24 hours labor for complete tear-down, hone cylinders, new rings, and reassembly. Many owners just add oil until engine seizes.
Estimated cost: $3,500-6,000
Transmission Oil Cooler Failure
Occasional · high severityTypical onset: 70,000-110,000 mi
Symptoms: Coolant mixing with CVT fluid (strawberry milkshake appearance), Transmission overheating, White smoke from exhaust, Sweet smell from vents, Sudden transmission failure after coolant contamination
Fix: Cooler internal rupture allows coolant and CVT fluid to mix, destroying the transmission. Requires immediate cooler replacement, complete CVT fluid flush (if caught early), or full CVT replacement if contamination occurred. 3-5 hours for cooler only; add 10+ hours if CVT damaged. Prevention: inspect cooler hoses regularly.
Estimated cost: $800-1,200 (cooler only); $4,000-6,000 (if CVT damaged)
Crankshaft and Main Bearing Failure (2.5L)
Occasional · high severityTypical onset: 100,000-180,000 mi
Symptoms: Loud knocking from bottom end, Metal shavings in oil, Sudden oil pressure drop, Engine seizure, Connecting rod bearing noise that progresses rapidly
Fix: Often caused by prolonged oil consumption issues starving bearings. Requires complete engine rebuild or replacement. Crankshaft R&R with bearing replacement takes 16-22 hours if salvageable; most get remanufactured long blocks instead at 12-16 hours swap time.
Estimated cost: $4,000-7,500
Front Strut Mount Failure
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Clunking over bumps, Rattling from front suspension, Steering wheel vibration, Poor wheel alignment retention, Uneven tire wear on inside edges
Fix: Upper strut mount bearing plates crack and separate. Both sides should be replaced together. 2.5-3.5 hours labor for pair including alignment. Sometimes masked by worn struts; recommend replacing mounts with struts as assembly.
Estimated cost: $400-700 (mounts only); $800-1,200 (with struts)
Fuel Sending Unit Failure
Occasional · low severityTypical onset: 90,000-140,000 mi
Symptoms: Fuel gauge reading empty when tank is full, Erratic gauge movement, Gauge stuck at full, Fuel warning light stays on, No fuel gauge reading at all
Fix: Sending unit float arm or resistor strip fails. Requires fuel tank drop and pump assembly removal. 2-3 hours labor. Common enough that many owners just use trip odometer instead of fixing.
Estimated cost: $350-600
Catalytic Converter Failure (related to oil consumption)
Occasional · medium severityTypical onset: 100,000-150,000 mi
Symptoms: Check engine light with P0420/P0430 codes, Rattling from underneath when cold, Failed emissions test, Reduced power and fuel economy, Sulfur smell from exhaust
Fix: Often killed by oil-burning fouling the substrate. Both front and rear cats may need replacement on 2.5L. 3-4 hours labor for both. Aftermarket cats cheaper but may not last or pass inspection in strict states. Address oil consumption first or new cats will fail quickly.
Estimated cost: $800-2,200
Hard pass for most buyers—the CVT and oil consumption issues are too severe and expensive; if you must have one, only consider low-mileage examples under 60k with full service records and extended 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.