Au7o mascotAu7o
Known IssuesTest Hub demo
  1. Au7o
  2. /
  3. Known Issues
  4. /
  5. Toyota
  6. /
  7. Yaris
Toyota · Known Issues

2015 Toyota Yaris Problems: 6 Known Issues

2015 model year · 1,400+ owner reports · Updated September 2026

Share:@au7o.io

2015 · All trims · All engines

Choose the year and equipment for your written issues and visual request.

No email neededHow interest is saved

Interest applies to the selected vehicle and configuration; it is not a reservation. Voting stores a first-party identifier for up to 180 days to prevent repeat votes. No account or email is needed. Clearing cookies or using another device may count separately. Privacy

Visual coming soon

Your interest helps us choose what to build next.

Visual Known Issues · Coming soon

$4.99/month plus taxes at launch · No payment today

Known IssuesMotorcycle IssuesDTC LookupDrivePricingAboutTermsPrivacyCookiesConsentData rightsCopyrightFeedback
Share:@au7o.io

Vehicle data and repair guidance on this site are compiled with AI assistance and may contain errors. Always verify with your service manual or a qualified mechanic.

Data protection representation

DataRep representative in the United KingdomDataRep representative in the European Union
Au7o · 2026
Built for DIY mechanics. Privacy-first.
Explore free Hub demo
Preview the XT6 example
Issue summary

According to Au7o's analysis of 1,400+ owner reports, the 2015 Toyota Yaris has 6 documented known issues, with 1 rated critical. The most serious is Electric Power Steering (EPS) Failure ($300-$1,200 repair). The most commonly reported issue is 4-Speed Automatic Transmission Shudder and Harsh Shifts with 780 owner reports. Across all issues with published estimates, repair costs range from $20 to $2,500. DIY maintenance guides at au7o.io.

In This Article

  • Yaris Suspension1
  • Yaris Engine3
  • Yaris Transmission1
  • Yaris Brakes1
  • Recalls7
  • FAQ
Get Started
Back to top

In This Article

  • Suspension1
  • Engine3
  • Transmission1
  • Brakes1
  • Recalls7
  • FAQ

All 6 Known Issues

Filter:
ALL YEARS202020192018201720162015201420132012201120102009200820072006
Community reported
620 owners

On the 2007-2018 Toyota Yaris, the Yaris's electric power steering system can fail, causing sudden loss of power assist and very heavy steering. The EPS motor or its control module malfunctions, typically with a power steering warning light. The failure is sudden and dangerous at low speeds.

Common Symptoms

  • Power steering warning light
  • Sudden heavy steering effort
  • Steering assist intermittent
  • Clunking from steering column
  • EPS error codes stored in ECU

How to Fix

Diagnose with Toyota Techstream to determine if the EPS motor or control module has failed. Replace EPS motor assembly (Toyota 45250-52210) or EPS ECU. Used EPS columns from salvage yards ($200-400) are a cost-effective option. After replacement, perform EPS calibration/initialization with Techstream.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Toyota 89650-52370 genuine early Yaris power-steering control module

    replace a circuit-tested failed EPS ECU on the matching early branch Fitment/availability: 2006-2011 Yaris NCP91 catalog branch and supersedes 89650-52050; ABS/body/production variants exist, so exact VIN and diagnosed ECU number must ma…

    ToyotaPartsDeal
  • Toyota 45200-52300 genuine early Yaris EPS steering-column/post assembly

    replace a test-confirmed failed early EPS motor/column assembly Fitment/availability: 2006-2012 Yaris NCP91/NCP93 catalog branch; confirm VIN, body, production date and whether the ECU or column/motor is actually failed Fitment/availabil…

    ToyotaPartsDeal
  • Toyota 45250-52764 genuine 2012-2015 Yaris electrical steering-column assembly

    replace a test-confirmed failed mid-generation EPS column after recall screening Fitment/availability: 2012-2015 Yaris NCP131 catalog branch and supersedes 45250-52763; VIN/production confirmation and recall completion check required Fit…

    ToyotaPartsDeal
  • Toyota 4520A-0D221 genuine 2015-2018 Yaris electric-power-steering column subassembly

    replace a test-confirmed failed late EPS column subassembly Fitment/availability: 2015-2018 Yaris NCP131 catalog branch and supersedes 4520A-0D220; confirm VIN, production date and diagnosed assembly Fitment/availability: Ships in 1-3 bu…

    ToyotaPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$300 - $1,200

Research This Issue

Based on 620 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence620 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

On the 2007-2015 Toyota Yaris 1NZ-FE 1.5L, the 1NZ-FE is not an oil burner when new, but owners on yarisworld report it developing meaningful consumption once the rings wear - reports cluster around a half-dipstick per 2,500 miles up to roughly one liter per 2,000 miles. The causes are the usual pair: coked/stuck oil control rings (aggravated by extended drain intervals and short-trip city driving, which is exactly how most Yaris live) and hardened valve stem seals that let oil down the guides on overrun. Because Toyota's own manual states a very permissive 'normal' consumption figure, dealers frequently dismiss the complaint. The danger is not the engine failing - it is the owner not checking the dipstick between 5,000-mile changes and running it dry, or the oil burn slowly poisoning the catalytic converter.

Common Symptoms

  • Low oil light or low dipstick well before the next service
  • Blue smoke on cold start or when lifting off after a long downhill
  • Oil consumption of roughly a quart every 1,000-2,500 miles
  • Fouled spark plugs
  • Eventual P0420 as the catalyst is contaminated

How to Fix

Confirm with a documented consumption test (measured fill, drive 1,000 miles, re-measure). If it is valve stem seals, expect blue smoke only on cold start and after long decel - seals can be done with the head on using a rope/air-hold method. For stuck oil control rings, a piston soak (solvent down the plug holes overnight, then a full oil and filter change) frequently restores compression and cuts consumption. Beyond that it is a ring job. Regardless: shorten the oil change interval, use the correct 0W-20/5W-20 grade, and check the dipstick every fuel fill.

Typical repair cost:$150 - $2,500

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Low ConfidenceVerifiedReviewed Aug 2026

On the 2007-2018 Toyota Yaris 1.5L 1NZ-FE I4, the Yaris front engine mount (also called the dogbone mount or torque strut) fails prematurely, typically between 60,000-100,000 miles. The rubber deteriorates and the mount collapses, allowing excessive engine movement during acceleration and braking. This causes a harsh clunk when shifting from Park to Drive or Reverse, vibrations at idle, and can stress the CV axles and transmission mounts.

Common Symptoms

  • Clunk when shifting from Park to Drive
  • Excessive vibration at idle
  • Engine visibly rocks during acceleration
  • Harsh engagement when shifting
  • Vibration through steering wheel at stops

How to Fix

Replace the front engine mount (Toyota part 12361-21080 or equivalent). The repair is straightforward — support the engine from below, remove the through-bolt and bracket, and install the new mount. OEM mount costs $60-$100, aftermarket $30-$50. Replace all three mounts if the vehicle has over 120,000 miles, as the others are likely worn too.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Toyota 12351-21090 genuine engine-mount support damper/insulator

    replace a specifically inspection-confirmed failed engine-mounting damper Fitment/availability: 2007-2018 Yaris 1.5L catalog branch for automatic and manual transmissions; this is the damper/support insulator, not every side mount or con…

    Longo Toyota Parts

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipThe front dogbone mount is the one that always goes first. You can check it by having someone shift Park-Drive-Reverse while you watch the engine from outside. If it lurches an inch or more, it's toast.
Typical repair cost:$100 - $400

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence

On the 2007-2018 Toyota Yaris, the 1NZ-FE/2NZ-FE coil-on-plug packs are a recurring failure point, and cylinder 1 - the one closest to the front of the engine and nearest the cowl drain area - fails disproportionately. Two mechanisms show up on the forums: the coil's internal windings break down with heat and age, and water gets down the plug tube (from a leaking valve cover gasket, a clogged cowl drain, or an engine bay wash) and sits on the coil boot, shorting the spark to ground. Owners describe replacing the plug and coil, getting a clean year, then having it recur if the water path was never fixed. A dying coil that is left alone dumps raw fuel into the catalyst and can eventually kill the converter.

Common Symptoms

  • Flashing or steady check engine light
  • Rough idle and shaking at a stop
  • Loss of power and hesitation under acceleration
  • Misfire worse in rain or after a car wash
  • Raw fuel smell from the exhaust

How to Fix

Swap the suspect coil to another cylinder - if the misfire code follows the coil, the coil is bad. Replace with an OEM Denso coil rather than a cheap aftermarket unit. Critically, fix the water source at the same time: pull the coils, dry the plug wells, replace the valve cover gasket and spark plug tube seals if oil or water is pooling, clear the cowl drains, and re-grease the boots with proper dielectric grease. Replace all four Denso iridium plugs at the same time if they are past interval.

Typical repair cost:$60 - $300

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Low ConfidenceVerifiedReviewed Aug 2026
Community reported
780 owners

On the 2007-2018 Toyota Yaris, the U340E/U441E 4-speed automatic in the Yaris develops shudder during torque converter lockup and harsh shifts, particularly 1-2 and 2-3 shifts. Worn transmission fluid and torque converter clutch material are the primary causes.

Common Symptoms

  • Shudder at 25-40 mph during light throttle
  • Harsh 1-2 and 2-3 gear shifts
  • Transmission slipping sensation
  • Delayed engagement from Park to Drive

How to Fix

Perform triple drain-and-fill with Toyota WS ATF (or Toyota Type T-IV for older models). If shudder persists, torque converter replacement. Regular ATF changes every 30,000 miles prevent the issue. The 4-speed automatic is otherwise quite reliable when maintained.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Toyota 00289-ATFWS genuine World Standard automatic-transmission fluid, 1 quart

    measured refill only after diagnosis shows fluid service is justified; never mix with Toyota Type T-IV Fitment/availability: 2007-2018 U.S.-market Yaris 4-speed automatic branches whose VIN-specific owner's or service manual calls for To…

    eBay — McGrath Elmhurst Toyota Parts

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$150 - $1,800

Research This Issue

Based on 780 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence780 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

On the 2007-2018 Toyota Yaris, a very common Yaris electrical fault: the rear wheel speed sensor is integrated into the rear hub/bearing assembly and is not sold separately. The weather seal where the harness plugs into the hub has a gap, so road spray and winter salt wick into the connector, corrode the pins and degrade the signal. The ABS light and the red brake/'!' light come on together, often intermittently at first and worse in wet or winter weather. Dealers routinely quote a complete rear hub assembly (owners report $650-750 CAD per side) when the actual fault is frequently just a dirty, corroded connector.

Common Symptoms

  • ABS light and red brake/'!' light on together
  • Lights come on intermittently, worse in rain, snow or after driving on salted roads
  • ABS unavailable, traction/stability warning
  • Speed sensor circuit code stored for one rear wheel

How to Fix

Before buying a hub: unplug the rear speed sensor connector at the hub, clean the corrosion out of both halves with electrical contact cleaner, inspect the pins, repack with dielectric grease and seal the harness gap so spray can't re-enter. Check the harness routing for chafe points along the trailing arm too. If the pins are already eaten away or the sensor reads open/erratic on a scan tool, the rear hub/bearing assembly must be replaced as a unit - the sensor is not serviceable separately.

Typical repair cost:$20 - $700

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026
NHTSA Recalls7 recalls

EQUIPMENT:OTHER:LABELS

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."

Campaign #19V50300028/06/2019

AIR BAGS:SIDE/WINDOW

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.

Campaign #19V31900023/04/2019

TIRES:TEMPORARY/EMERGENCY SPARE TIRE

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.

🔧
A mechanic who knows YOUR exact car
Answers tuned to your year, make, model & trim — not generic advice. Save your garage so it always has the right context.
Get ahead of Toyota Yaris problems — free
Leave your email and we'll alert you the moment there's a new recall or known issue for your Toyota Yaris. Free, no account needed.

Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.

Other Toyota Models

Toyota RAV460Toyota Corolla54Toyota Camry54Toyota Highlander51Toyota 4Runner47Toyota Tacoma46

Frequently Asked Questions

What are the most common Toyota Yaris problems?

According to Au7o's analysis of 1,400+ owner reports, the 2015 Toyota Yaris has 6 documented issues. The most frequently reported are: Electric Power Steering (EPS) Failure, 4-Speed Automatic Transmission Shudder and Harsh Shifts, High-Mileage Oil Consumption from Worn Piston Rings / Valve Stem Seals (1NZ-FE). Of these, 1 is rated critical and should be addressed promptly.

Is the Toyota Yaris reliable?

The 2015 Toyota Yaris has 6 known issues documented across 1,400+ owner reports. 1 issue is rated critical: Electric Power Steering (EPS) Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Toyota Yaris problems?

Repair costs for known Toyota Yaris issues range from $20 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Electric Power Steering (EPS) Failure, typically costs $300-$1,200 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2007-2018 Toyota Yaris Electric Power Steering (EPS) Failure?

The Yaris's electric power steering system can fail, causing sudden loss of power assist and very heavy steering. The EPS motor or its control module malfunctions, typically with a power steering warning light. The failure is sudden and dangerous at low speeds. Repairs typically run $300-$1,200. Severity: high.

What is the 2007-2018 Toyota Yaris 4-Speed Automatic Transmission Shudder and Harsh Shifts?

The U340E/U441E 4-speed automatic in the Yaris develops shudder during torque converter lockup and harsh shifts, particularly 1-2 and 2-3 shifts. Worn transmission fluid and torque converter clutch material are the primary causes. Repairs typically run $150-$1,800. Severity: medium.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 1,400+ owner reports, NHTSA recalls, TSBs, and automotive forums.

Campaign #17V29500002/05/2017

SUSPENSION:FRONT:SHOCK ABSORBER

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2015 Yaris vehicles manufactured January 13, 2015, to February 27, 2015. The front strut mounting bearings can be damaged when a high load is applied to the strut, such as driving over a large bump.

Campaign #16V36700026/05/2016

STRUCTURE

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."

Campaign #15V13400009/03/2015

+ 2 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

What is the 2007-2015 Toyota Yaris High-Mileage Oil Consumption from Worn Piston Rings / Valve Stem Seals (1NZ-FE)?

The 1NZ-FE is not an oil burner when new, but owners on yarisworld report it developing meaningful consumption once the rings wear - reports cluster around a half-dipstick per 2,500 miles up to roughly one liter per 2,000 miles. The causes are the usual pair: coked/stuck oil cont… Repairs typically run $150-$2,500. Severity: medium.

What is the 2007-2018 Toyota Yaris Rear Wheel Speed Sensor Corrosion at the Hub Connector (ABS and Brake Warning Lights)?

A very common Yaris electrical fault: the rear wheel speed sensor is integrated into the rear hub/bearing assembly and is not sold separately. The weather seal where the harness plugs into the hub has a gap, so road spray and winter salt wick into the connector, corrode the pins… Repairs typically run $20-$700. Severity: medium.

What is the 2007-2018 Toyota Yaris Front Engine Mount Premature Failure?

The Yaris front engine mount (also called the dogbone mount or torque strut) fails prematurely, typically between 60,000-100,000 miles. The rubber deteriorates and the mount collapses, allowing excessive engine movement during acceleration and braking. This causes a harsh clunk w… Repairs typically run $100-$400. Severity: medium.

What is the 2007-2018 Toyota Yaris Cylinder #1 Ignition Coil-on-Plug Failure and Spark Plug Well Water Intrusion (1NZ-FE)?

The 1NZ-FE/2NZ-FE coil-on-plug packs are a recurring failure point, and cylinder 1 - the one closest to the front of the engine and nearest the cowl drain area - fails disproportionately. Two mechanisms show up on the forums: the coil's internal windings break down with heat and… Repairs typically run $60-$300. Severity: medium.