The 2014 Yaris is generally a reliable subcompact with Toyota's proven 1.5L 1NZ-FE engine, but this generation has a surprising weak spot: engine oil consumption issues that can escalate to catastrophic internal damage if ignored. The 4-speed automatic transmission is bulletproof but has minor accessory issues.
Excessive Oil Consumption / Piston Ring Failure
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: burning 1+ quart per 1,000 miles, blue smoke from exhaust on startup or acceleration, low oil pressure warning, fouled spark plugs causing misfires, carbon buildup on intake valves
Fix: Requires engine teardown to replace piston rings, hone cylinders, and often pistons themselves. Toyota issued TSB but no recall. If caught late, you're looking at short block replacement or full rebuild. Labor is 12-18 hours depending on how deep you go.
Estimated cost: $2,800-5,500
Automatic Transmission Oil Cooler Line Leaks
Occasional · medium severity
Typical onset: 100,000-140,000 mi
Symptoms: transmission fluid puddles under vehicle near radiator area, low fluid level causing delayed shifts, pink or red fluid visible on ground, transmission overheating warnings in extreme cases
Fix: The cooler lines corrode where they connect to the radiator or at crimped fittings. Replace both lines preventively when one fails. Labor is about 1.5-2 hours including fluid refill and system check.
Estimated cost: $250-450
Transmission Mount Deterioration
Common · low severity
Typical onset: 70,000-110,000 mi
Symptoms: clunking when shifting from Park to Drive or Reverse, excessive engine movement visible when revving, vibration at idle that lessens when in Neutral, shifter feels loose or sloppy
Fix: The rear transmission mount (torque rod mount) tears internally. Toyota revised the part mid-production. Replace with updated mount. Labor is 0.8-1.2 hours.
Estimated cost: $180-320
Fuel Filter Clogging (Pre-Pump Sock Filter)
Occasional · medium severity
Typical onset: 120,000+ mi
Symptoms: hard starting when fuel tank is below 1/4, sputtering or hesitation under load, random stalling especially in hot weather, fuel pump whining noise from rear seat area
Fix: The in-tank sock filter clogs with sediment, starving the pump. Requires dropping the fuel tank to access. Replace pump assembly with new filter integrated, or clean existing if caught early. Labor is 2-3 hours.
Estimated cost: $350-650
Carbon Buildup on Intake Valves
Occasional · low severity
Typical onset: 90,000-130,000 mi
Symptoms: rough idle especially when cold, hesitation or flat spot during acceleration, slightly reduced fuel economy, misfires on one or more cylinders
Fix: Direct result of oil consumption issues. Valves need manual cleaning via intake manifold removal and walnut blasting or chemical cleaning. Labor is 3-4 hours if combined with spark plug and PCV valve service.
Estimated cost: $400-700
Head Gasket Failure (Worst-Case Oil Consumption Scenario)
Rare · high severity
Typical onset: 150,000+ mi
Symptoms: white smoke from exhaust, coolant mixing with oil (milky dipstick), overheating, external coolant leaks from head/block interface, bubbles in coolant reservoir when engine running
Fix: Usually only happens if oil consumption was ignored for years, causing overheating events. Requires cylinder head removal, resurfacing, and new gasket. Machine work adds cost. Labor is 8-12 hours.
Estimated cost: $1,800-3,200
Owner tips
Check oil level every 500 miles religiously — early intervention on oil consumption can save the engine
Use Toyota-spec 0W-20 synthetic and change every 5,000 miles max; frequent changes help delay ring issues
If buying used, request oil consumption test: fill to max, drive 500 miles, check level — more than 1/2 quart loss is a red flag
Replace PCV valve every 60,000 miles to minimize carbon buildup and oil burning
Inspect transmission cooler lines during any undercar service after 80,000 miles
Buy one under 80,000 miles with documented oil changes and verified low consumption; otherwise the engine is a ticking time bomb that can turn a $6,000 car into a $3,000 parts donor overnight.
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.
Fitment notes: Compact group size typical for subcompact vehicles
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Every control module on the 2012-2017 Toyota Yaris — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Electric Power Steering Control Module (EPS ECU)2.5 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Integrated with steering column assembly, accessed from under dash
🔧 Techstream or Autel/Launch for zero-point calibration
⚠️ Steering angle sensor calibration required; typically replaced as assembly with column
📍 Behind driver side lower dash panel or integrated with BCM
🔧 Techstream or Autel/Launch for sensor registration
⚠️ Sensor ID registration required after replacement; relearn procedure needed after tire rotation
Backup Camera ECU (CAMERA ECU)0.5 hr R&Rrelearn only +0.1 hr▸ programming details
📍 Integrated with camera assembly in rear hatch lid
🔧 Techstream or aftermarket for camera calibration
⚠️ Standard on most trims 2015+; guideline calibration may be needed
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2012-2015 Yaris vehicles manufactured August 31, 2011, to February 9, 2015, and sold or registered in Puerto Rico. The affected vehicles may have been manufactured with a roof headliner that does not provide the proper occupant protection in the event of a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 201, " Occupant Protection in Interior Impact."
Consequence: If the vehicles are equipped with a headliner that does not meet the impact requirements, there is an increased risk of occupantl injury in the event of a crash.
Remedy: Toyota will notify owners, and dealers will replace the headliner, free of charge. The recall began on June 22, 2015. Owners may contact Toyota customer service at 1-800-331-4331.
Fuel economy (EPA)
City
30mpg
Highway
36mpg
Combined
33mpg
Fuel
Regular Gasoline
Capability & size
EPA class
Compact Cars
Wiper blades
XP130 generation (2012-2014). Standard hook-type attachment on all positions.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2014 Toyota Yaris 1.5L I4 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.