2020 Lexus IS owner complaints

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

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.

Front Suspension (shock Absorber) uneven wear and bouncy, some vibration on the steering wheel at about 30k miles, on highway exit round about circle, the vehicle swerves left or right. very unsafe. long story short, drop it off at the dealership Lexus of Pembroke Pines FL, they said the issue was my tires and it needed to be replace, I rotated the tires rear tires went to the front and front to the back, no vibration, noise went away while driving, how ever about 10k miles later the uneven wear bouncing and noise came back while driving, Disappointed how the Lexus of Pembroke Pines handle my concern, i took my vehicle to Germain Lexus of Naples FL, I explained the problem with the suspension and they charged me to diagnosed the problem, charged me for an alignment, that adjustments were

Vehicle steering wheel gets slightly stuck around 70+ mph on highway. Possible issue with the EPS, steering rack, 4 pin point connecter. Lexus isn’t able to diagnose it

I am filing this updated complaint to supplement my prior complaint (NHTSA ID No. XXX, filed January 27, 2026) regarding a recurring, safety-critical engine defect in my 2020 Lexus IS300 RWD, 8AR-FTS engine. DEFECT: Three documented misfire events over seven weeks. The second (12/11/2025) and third (1/17/2026) each involved a temporary stall in active traffic requiring immediate evasive action. All events involved flashing MIL, reduced engine power, shaking, and abrupt deceleration. DIAGNOSIS: Authorized Lexus dealership—following 34-day retention with Lexus Technical Assistance (TAC Case XXX) and personal on-site inspection by a Lexus Field Technical Engineer—confirmed worn intake valve guide on Cylinder 3. Repair estimate: $10,355.61 subtotal per Service Bulletin L-SB-0007-21 ($10,671.72

This vehicle has a recurring, safety-critical defect involving intermittent engine misfires, flashing MILs, reduced engine power, sudden loss of acceleration, and noticeable engine shaking. Despite multiple repair attempts and extended diagnostics by a dealership, with manufacturer technical assistance, the defect continues. The defect has repeatedly caused the vehicle to stall and lose propulsion while driving, creating a serious hazard. Documented events include: •FIRST INCIDENT: The MIL flashed and engine power was reduced while driving. The vehicle was taken to the dealership for evaluation and repair. A diagnostic code confirmed a cylinder misfire. •SECOND INCIDENT: Several days after being returned to the owner, the MIL flashed again and engine power was reduced, requiring careful ma