2012 Hyundai Sonata Hybrid fuel system NHTSA complaints: Fuel/Propulsion System

NHTSA — Fuel/Propulsion System Problems


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
27,783 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Hyundai Sonata Hybrid fuel system problems

fuel system problem

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2012 Hyundai Sonata Hybrid Owner Comments

problem #3

Jan 082016

Sonata Hybrid

  • 51,000 miles


This is my second 2012 Sonata hybrid. The first one had so many engine issues that Hyundai replaced it with another 2012 Sonata hybrid. I have taken it in 5 times.for the same issue. Around 20mph the car will not accelerate then it jerks forward. I almosy got hit on the highway because it wont accelerate. Several weeks ago the stop safely do not drive hybrid warning came on and thr car wouldnt go. Had ot towed. They found code P0717. They replaced input output speed sensors but the problem continues still. It also jerks when it changes from hybrid to gas. This car is dangerous. They cannot seem to find the problem. Mileage 51000-55000.

- Franklin, IN, USA

problem #2

Nov 082012

Sonata Hybrid 4-cyl

  • 350 miles
When accelerating from a stop, the vehicle takes excessively long time to go from 0-25 mph, so much so, that when merging into traffic it has unpredictable acceleration. At various times I would step on the gas pedal and sometimes it would have a 3-5 second delay before going forward. When it finally accelerates sometimes it has a popping sound and often the car lurches. I have brought it in 3 times for Hyundai to find the problem but each and every time they have said they were not able to find anything wrong with the car.

- Garden Grove, CA, USA

problem #1

Feb 152014

Sonata Hybrid 4-cyl

  • 32,000 miles
Slowly accelerating up a small hill at approximately 3 to 5 mph. Began to break at top of hill which is at the exit of a very busy road. Suddenly car began to accelerate without my foot on the gas or on cruise. I had foot on the brake when this happened. I had to break harder to avoid being hit by 4 lane traffic. Car moved about a foot after brake was applied harder.

- Buchanan, MI, USA

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