2018 Toyota Yaris iA

The 2018 Toyota Yaris iA, later rebranded as just the Toyota Yaris for the 2019 model year, is a subcompact sedan known for its fuel efficiency, affordability, and nimble handling. All 2018 Yaris iA models came equipped with a 1.5-liter four-cylinder engine producing 106 horsepower and 103 lb-ft of torque. This engine was exclusively paired with a six-speed automatic transmission. Owners appreciate the Yaris iA for its reliability, responsive steering, and comprehensive list of standard features for its price point. Common complaints often revolve around its somewhat limited rear passenger space and basic interior materials.

Engine

1.5L Four-Cylinder

• Excessive Oil Consumption
  • Description/Symptoms: Some owners have reported higher-than-expected oil consumption, requiring more frequent oil top-offs between scheduled oil changes. The issue can worsen over time.
  • Solution: Regularly monitor oil levels and top off as needed. In severe cases, a dealer may perform an oil consumption test to determine if further action is needed, such as replacing piston rings.
  • Estimated Cost to Fix: An oil consumption test is typically around $100. Piston ring replacement can range from $1500 - $3000+, depending on the severity and labor costs.
  • Recalls: None Found

Transmission

6-Speed Automatic

• Hesitation/Rough Shifting
  • Description/Symptoms: Some owners have reported occasional hesitation or rough shifting between gears, particularly during cold starts or at lower speeds.
  • Solution: A transmission fluid change using Toyota WS fluid may alleviate the issue. In some cases, a software update may be available from the dealer. If the issue persists, a more in-depth diagnosis may be required.
  • Estimated Cost to Fix: A transmission fluid change is typically $150 - $300. Software updates are generally free of charge. More complex repairs will vary.
  • Recalls: None Found

Suspension

No Issues Found

Electrical

• Infotainment System Freezing/Crashing
  • Description/Symptoms: The infotainment system can occasionally freeze, become unresponsive, or crash, requiring a restart.
  • Solution: Try restarting the system by turning the car off and on again. A software update from the dealer might be available to address known bugs.
  • Estimated Cost to Fix: Software updates are generally free of charge.
  • Recalls: None Found

Exterior

No Issues Found

Interior

• Dashboard Reflection on Windshield
  • Description/Symptoms: The light-colored dashboard can reflect strongly on the windshield, particularly in bright sunlight, potentially impairing visibility.
  • Solution: Using a dashboard cover or sunshade can minimize the reflection.
  • Estimated Cost to Fix: $20 - $50 for a dashboard cover/sunshade
  • Recalls: None Found

Summary

The 2018 Toyota Yaris iA is generally a reliable vehicle, with the most common issues being related to excessive oil consumption, occasional transmission hesitation, infotainment glitches, and dashboard reflection. The severity of these issues ranges from minor annoyances to potentially costly engine repairs, depending on the individual case.