CarComplaints.com Notes: The 2011 Sonata has a seriously defective engine that seizes without warning. It was awarded the dubious honor of being the first CarTalk / CarComplaints Turd of the Week in late September 2015.

A class action lawsuit was filed in May 2015 against Hyundai that claims the 2.4L Sonata engine is defective. More info here.

8.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
49,700 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. not sure (3 reports)
2011 Hyundai Sonata accessories - exterior problems

accessories - exterior problem

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2011 Hyundai Sonata Owner Comments

problem #3

Sep 292014

Sonata Limited 2.4L Dohc

  • Automatic transmission
  • 59,246 miles

A D V E R T I S E M E N T S

Again I report the same issue of the locks that UNLOCK when you start the car. This car is so unsafe!

- duket, Eldersburg, MD, US

problem #2

Aug 082014

Sonata Limited 2.4L Dohc

  • Automatic transmission
  • 57,368 miles

This issue with the doors UNLOCKING when starting the car continues! Now the technician says to get a new car battery. This does NOT fix the issue.

- duket, Eldersburg, MD, US

problem #1

Jul 272012

Sonata Limited 2.4L Dohc

  • Automatic transmission
  • 32,448 miles

This is a real hazard for anyone who has kids and drives this car. There is no way to lock the doors manually after it gets in this state. The only work around I have found is to "reboot": the car. Technicians have found no cause or solution.

- duket, Eldersburg, MD, US

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