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2018 Toyota Yaris Ia problems

The most common problem on the 2018 Toyota Yaris Ia is tires. It has fewer complaints than a typical Yaris Ia model year.

Typical yearClose to a typical year
Year score
86/100
Owner complaints
8
Recalls
0
Service bulletins
34
Worst area
Tires

The worst 2018 Toyota Yaris Ia problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Tires
    3
  • Acceleration
    1
  • Airbags
    1
  • Brakes
    1
  • Electrical
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Tires
    3
  • Acceleration
    1
  • Airbags
    1
  • Brakes
    1
  • Electrical
    1
  • Engine
    1
  • Seat belts
    1

Recalls

No recalls on record for this model year.

Technical service bulletins for the 2018 Toyota Yaris Ia 34

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 34 bulletins for the 2018 Toyota Yaris Ia

What 2018 Toyota Yaris Ia owners say

Most recent owner complaints, unedited.

Filed Aug 14, 2026 · Tires · NV

I am reporting a severe vehicle safety violation involving a Westlake tire on a 2018 Toyota Yaris rented through Turo (Claim 1060794). The vehicle host rented out the vehicle with a pre-existing, structurally ruptured tire sidewall bulge on the front passenger wheel. The host took a pre-trip photo documenting the failing tire with a gauge but failed to ground the vehicle, choosing instead to temporarily inflate it with air to mask the low-pressure warning light. The tire structurally failed during operation, forcing a replacement. A formal safety investigation is requested into this safety failure for deploying a non-roadworthy, structurally compromised vehicle onto public roads. TIRE SIZE 185/60R16

Filed Nov 27, 2024 · KY · crash · fire

Over corrected, hit a tree, flipped car 2x landed upside down white smoke started filling in the car and went completely engulfed in flames within a few minutes.

Filed Feb 14, 2024 · Tires · CA

This is a safety issue that needs to be addressed. I informed the Manufacturer , Yokohama, as soon as the incident occurred and had to be replaced by a tire shop. These tires can explode if they hit anything, on the side, at less than 2mph (two miles per hour).

Filed Jun 24, 2022 · Electrical, Engine · 26,000 miles · NY

The contact owns a 2018 Toyota Yaris IA. The contact stated while driving at an undisclosed speed, the Forward Collision Avoidance and TPMS warning lights illuminated. The contact stated that the accelerator pedal was depressed however, the vehicle failed to respond. The contact stated that she depressed the brake pedal however, the vehicle failed to respond. The vehicle stalled and stopped independently. The contact veered to the side of the road. The contact was unable to restart the vehicle after several attempts. The vehicle was towed to the dealer where unknown repairs where completed. However, the failure reoccurred while driving. Additionally, the contact stated that the vehicle failed to start after several attempts. The contact jumpstarted the vehicle and the vehicle restarted as needed. The check engine warning light was illuminated. The vehicle was taken to a local Pep Boys where it was diagnosed that the failure was associated to the engine control module. The dealer and the manufacturer were notified of the failure and informed the contact that the vehicle only had a power train warranty. The vehicle was not repaired. The failure mileage was approximately 26,000.

Filed Jan 25, 2022 · Brakes · VA

I’m reporting a vehicle safety problem. My 2018 Toyota Yaris IA just had a mileage of 823 miles and was within the warranty time and had a brake system problem caused by the Toyota car quality problem. On August 22 (Sunday), 2021 about 1:00 pm I, with my wife, was going to drive my 2018 Toyota Yaris IA to my daughter’s house to see our five grandchildren as we did since April when we had covid 19 vaccine. When I started the car in my house parking lot, I was surprised to find several indicators of the brake system malfunction were on the car’s computer screen. Not only did the indicators still exist in the screen, I felt the car was shaking when I was driving about 30 feet. I immediately returned back to my house parking lot and found a new problem that the air conditioning didn’t work either. I decided not to drive this car. The next day, August 23 about 7:00 am, I drove to Oakton Sonoco Auto Service Center. There, Jim, the manager, found the same indicators of the brake system malfunction, he at once told me, “Your car just has 800 mileages and is under warranty. You should drive to the Toyota dealer immediately.” Then I drove to Ourisman Fairfax Toyota at about 7:25 am and told Mr. Carroll Hyman about the car problems. At about 4:00 pm he called me and said, “Mice bit and broke the wires to damage the wire system. Your car’s repairing can not have the warranty.” I asked, “Did you see the mice?” He answered, “Yes, the mice were in the wires close to the engine”. He didn’t mention whether the mice were alive or dead. If the mice were alive when he saw them, how could the mice be still there after about 18 hours including 20 minutes suffering heat, noise and vibration created by the working engine? If the mice were dead when he saw them, while I was driving several miles , the engine chatter and inertia of the moving body of the car already threw away dead mice into the road, how could he see them still there? His saying contradicts the facts.

Filed Apr 8, 2021 · Airbags, Seat belts · 52,000 miles · GA

My traction control goes crazy even when the weather is nice. When driving the traction control will start blinking and turn off. My safety restraint system has an error and my seat belt latch is broken. They said they would not fix it because its not an issue. My car makes loud beeps when I start. My keyless entry has malfunctioned since 2 months after I bought it in dec of 2018. They want to charge me to "look at it". It says there are no keys in the vehicle when I am driving. My airbags are malfunctioning. It is not registering people sitting in the vehicle. When driving down the road it flashes that the airbags are off. I weight 220lbs I am more than enough to set that sensor off and when I drive it will not engage.

Filed Dec 21, 2020 · Tires · 38,789 miles · NC

Tl* the contact owns a 2018 toyota yaris ia equipped with toyo tires, tire line: proxes a27, tire size: p185/60r/16, dot number: (not provided). The contact stated while driving at various speeds the tires loss air without warning. The contact added air to tires. The local dealer was not contacted. The vehicle was not diagnosed nor repaired. The contact stated that the failure was like the federal safety agency campaign number: 19t004000 (tires). The manufacturer was not contacted. The failure mileage was 38,789. The VIN was not available.

Filed Oct 6, 2019 · Acceleration · 19,173 miles · TX

Cruise control speed does not match speedometer toyota admits there is a problem, but there is no fix. Toyota case #[xxx] pat lobb toyota visit 8-24-19 information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tt pat lobb toyota visit 9-3-19 toyota of plano visit 9-15-19

Compare the 2018 Toyota Yaris Ia

Other model years

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Questions about the 2018 Toyota Yaris Ia

Is the 2018 Toyota Yaris Ia reliable?

Owners have filed 8 complaints about the 2018 Toyota Yaris Ia, fewer than a typical Yaris Ia model year.

What is the 2018 Toyota Yaris Ia year score?

The 2018 Toyota Yaris Ia scores 86 out of 100 (good). The score compares it with the other model years of the Toyota Yaris Ia: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2018 Toyota Yaris Ia?

Tires, with 3 complaints. Next is acceleration (1).

How many recalls does the 2018 Toyota Yaris Ia have?

No recalls on record.

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