2020 Lexus IS problems and complaints

Owners have filed 7 complaints with NHTSA about the 2020 Lexus IS. The most-reported areas: Fuel/Propulsion System (3), Unknown Or Other (2), Engine (2).

Key takeaways

  • 7 owner complaints on file with NHTSA.
  • 0 involve a crash, 0 a fire, 0 reported injuries.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Fuel/Propulsion System343%
Unknown Or Other229%
Engine229%
Steering114%
Power Train114%
Suspension114%

One complaint can name several components, so shares add up to more than 100%.

Parts for the 2020 Lexus IS

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Latest complaints, as filed

Owner-written and unverified by NHTSA.

Fuel/Propulsion System - filed 2026-11-03

Component or System Failure: The low-pressure in-tank fuel pump assembly and integrated fuel level sending unit failed. While driving, the vehicle suffered sudden fuel starvation and lost all motive power. The dealership verified that the car ran out of gas because the fuel level sending unit—which is mechanically inte...

Unknown Or Other - filed 2026-09-11

Sunroof exploded outwards while driving on the freeway. Temperature about 56degrees F, humidity 92% pressure 29.94. Unsafe, glass exploding, sharp glass

Unknown Or Other - filed 2026-09-11

While I was driving, my sunroof on the top exploded. There was no rock impact, no external or internal impact. I called Lexus and they told me it’s not covered. The Lexus representative said to submit a claim with triple A cus it’ll be at least 5k to take out everything and replace it. They won’t fix it themselves.

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More for the 2020 Lexus IS

Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.