Notes: There's an emerging trend of transmission problem with the 2010 Elantra at fairly early mileage.

So far owners report having the transmission replaced under warranty but that won't hold up for much longer. It may be a bit premature but for now we're putting the "CLUNKER" rating on the 2010 Elantra just to be safe.

Speaking of being safe, you might not be unless Hyundai can figure out why their airbags aren't deploying.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
38,723 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.

2010 Hyundai Elantra fuel system problems

fuel system problem

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2010 Hyundai Elantra Owner Comments

problem #3

Apr 222014

Elantra 4-cyl

  • 50,668 miles


I was approaching highway from city roads and I had to accelerate to get in the flow. Suddenly, I felt that even though I was accelerating, car did not gain speed. I checked rpms and it was quite high for the speed that car was moving. It looked to me as if car was in neutral gear but it was not. The car behind me almost hit my car because the driver was expecting my car to move faster. I had to stop on shoulder to check what is happening. I had this kind of experience before too but not like this one. Then it happened again when I got off the highway and I was back in city traffic. What my observation is, that when the automatic transmission goes from 2nd gear to 3rd, there is a problem. When I bought the car, even then the transmission was not smooth but there was no problem like the one I mentioned earlier. But as the mileage is increasing, the problem is getting bigger too. I do regular oil change as I have purchased service plan when buying the car. I had complained to the dealer service representative about it(transmission having problem) couple of times but they said they did not feel it. I think they were neglecting the problem because there is problem with transmission and that costs a big amount. I feel that this is a big problem even though I am not an expert.

- Verona, NJ, USA

problem #2

Apr 132014

Elantra 4-cyl

  • 55,000 miles
When driving at highway speeds, the transmission slips out of gear and the rpms go sky high and the car runs like it is in neutral. I have to tap the brake before it will adjust and go back into gear. This seems to be a bigger problem when carrying passengers. The added weight appears to be a factor. It's rather dangerous since it can happen at any time without warning and happened just this past weekend when driving in minneapolis, mn in heavy traffic. Mileage reported is estimated for when I first noted this problem approximately a year ago. Not knowing a lot about cars, I didn't think to report it. When I first bought the car, I was typically driving from home to work and back, but have been traveling more frequently in the last year due to family activities. The problem occurs more often on longer trips.

- Bloomer, WI, USA

problem #1

Jan 232012

Elantra 4-cyl

  • 10,500 miles
Had been losing mpg for about six months (went down from average 28 to 21) and dealer said could not do anything for me. Finally, engine light went on and brought car back to dealer who diagnosed a faulty oxygen sensor. Dealer ordered part and replaced sensor couple days ago. Engine light is off but it will take several months to check the mpg. Improvement.

- Guerneville, CA, USA

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