The 2017 Yaris with the 1.5L 2NR-FE is generally reliable, but the 4-speed automatic transmission (U341E) has documented weak points, particularly the oil cooler and mounts. Engine issues are rare but catastrophic when they occur, mostly involving premature timing chain wear and head gasket failures on high-mileage or poorly-maintained examples.
Automatic Transmission Oil Cooler Failure
Common · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Transmission fluid leaking into coolant (pink/red radiator fluid), Coolant mixing into transmission (strawberry milkshake fluid in trans pan), Erratic shifting or slipping after contamination begins, Overheating transmission warning light
Fix: Replace transmission oil cooler assembly integrated into the radiator. If contamination occurred, full transmission flush and filter replacement mandatory. If caught late, transmission rebuild/replacement required. 3-5 hours labor for cooler only, 8-12 hours if trans damaged.
Estimated cost: $600-1,200 for cooler/flush; $2,500-3,800 if transmission damaged
Transmission Mount Deterioration
Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Excessive engine/trans movement during acceleration or braking, Clunking noise when shifting from Park to Drive/Reverse, Vibration at idle especially with A/C on, Visible sagging or torn rubber on mount inspection
Fix: Replace front and/or rear transmission mounts. Front mount failure most common. 1.5-2.5 hours labor depending on which mounts.
Estimated cost: $250-500
Premature Timing Chain Stretch
Occasional · high severity
Typical onset: 100,000-150,000 mi
Symptoms: Rattling noise on cold start from engine front (first 10-15 seconds), Check engine light with timing correlation codes (P0016, P0018), Rough idle or misfires, Engine won't start if chain jumped teeth
Fix: Full timing chain kit replacement including tensioner, guides, and gears. If caught early enough, engine survives. If chain jumps, valve/piston damage likely requiring head work or full rebuild. 8-10 hours for chain job, 20+ hours for rebuild.
Estimated cost: $1,200-2,000 for chain; $3,500-5,500 if internal damage occurred
Head Gasket Failure
Rare · high severity
Typical onset: 120,000-180,000 mi
Symptoms: White smoke from exhaust (coolant burning), Overheating with no external leaks, Bubbles in coolant reservoir when engine running, Oil contaminated with coolant (milky appearance), Loss of coolant with no visible leak
Fix: Cylinder head removal, resurface, new gasket and bolts. Often requires head replacement if warped beyond machining limits. Always check for timing chain wear during this job. 10-14 hours labor.
Estimated cost: $1,800-3,200
Fuel Filter Clogging (Manual Transmission Models)
Occasional · medium severity
Typical onset: 80,000-120,000 mi
Symptoms: Hard starting when fuel tank below 1/4 full, Loss of power under acceleration, Sputtering at highway speeds, Check engine light with fuel trim codes
Fix: Fuel filter is part of the fuel pump assembly in the tank. Requires tank drop and pump replacement. Toyota doesn't sell filter separately. 2.5-3.5 hours labor.
Estimated cost: $450-750
Valve Lifter Noise and Wear
Occasional · low severity
Typical onset: 90,000-140,000 mi
Symptoms: Ticking or tapping noise from valve cover area, Noise worse on cold start, may quiet down when warm, No performance issues initially but can progress, Noise persists even after fresh oil change with correct grade
Fix: Replace hydraulic valve lifters (all 16). Requires valve cover removal and careful installation. Some techs also replace camshaft if lobe wear present. 4-6 hours labor for lifters only.
Estimated cost: $700-1,200
Owner tips
Change transmission fluid every 50,000 miles with Toyota Type T-IV or WS fluid — the 'lifetime fill' marketing is not accurate for longevity
Inspect transmission oil cooler and radiator for cross-contamination annually after 80,000 miles — catching it early saves the transmission
Use 0W-20 synthetic oil only and change every 5,000 miles maximum to prevent timing chain and lifter issues
Listen for timing chain rattle on cold starts — if present, replace chain immediately before catastrophic failure
Solid commuter car if the automatic transmission oil cooler has been replaced or is on your watchlist; avoid high-mileage examples without documented trans fluid services and timing chain inspection.
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.
Southeast Toyota Distributors, LLC (SET) is recalling certain 2017-2019 Toyota Camry, Corolla, Rav4, Sienna, and Yaris iA vehicles equipped with factory-installed floor mats. The load carrying capacity modification label may be incorrect. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."
Consequence: An incorrect label may lead to unintentionally overloading the vehicle, increasing the risk of a crash.
Remedy: SET will notify owners and provide a corrected label for placement over the inaccurate label, free of charge. The recall began August 23, 2019. Owners may contact Toyota customer service at 1-888-270-9371. SET's number for this recall is SET19A.
AIR BAGS:SIDE/WINDOW · 19V319000
2019-04-23
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2015-2017 Yaris vehicles. The wire harnesses for the side air bag sensors located within the front doors may crack and corrode, possibly causing the non-deployment or improper deployment of the front seat side air bags and the curtain shield air bags.
Consequence: In the event of a crash, front seat side air bags and curtain shield air bags that do not deploy as intended can increase the risk of injury.
Remedy: Toyota will notify owners, and dealers will replace the wire harness assembly in the front doors, as necessary, free of charge. The recall began June 7, 2019. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is K1F/K0F.
TIRES:TEMPORARY/EMERGENCY SPARE TIRE · 17V295000
2017-05-02
Gulf States Toyota, Inc. (Gulf States) is recalling certain 2017 4Runner , 86, Avalon, Camry, Camry Hybrid, Corolla, Corolla iM, Highlander, Highlander Hybrid, Prius, Prius C, RAV4, RAV4 Hybrid, Sienna and Yaris vehicles. The spare tire air pressure was not adjusted to the proper pressure as stated on the Tire Pressure Label.
Consequence: A spare tire that is not inflated to the proper value may not perform as intended, increasing the risk of a crash.
Remedy: Gulf States will notify owners, and dealers will inspect the spare tires, adjusting their pressure as necessary, free of charge. The recall began June 15, 2017. Owners may contact Gulf States customer service at 1-800-444-1074. Toyota's number for this recall is 17R2.
Fuel economy (EPA)
City
30mpg
Highway
39mpg
Combined
34mpg
Fuel
Regular Gasoline
Capability & size
EPA class
Subcompact Cars
Wiper blades
XP130 facelift generation. 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 2017 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.