2007 Hyundai Sonata GLS Problems Include Potential Engine Failure, Corroding Brakes, and Failed Fuse Box

S.D. Grady
Apr 6, 2022

The 2007 Hyundai Sonata GLS presents a few mechanical challenges as it gets older. Engine failures after the 100,000-mile mark, bad rear brake design, and an investigation for poor throttle control may require a second look. However, it still garners positive reviews from owners.

2007 Hyundai Sonata-Hyundai

Key Points

  • The 2007 Hyundai Sonata GLS is the entry-level trim for the midsize sedan known for its spaciousness, good fuel economy, and low maintenance costs.
  • Recalls issued by the National Highway Traffic Safety Administration included replacing bad airbag sensors and a rear stop light switch.
  • Drivers experience problems with sticking rear brakes, fuse boxes, and relatively early engine failure.
  • An open investigation at the NHTSA is looking into accidents caused by sudden uncontrolled acceleration.
  • The most common problems are not indicative of a bad model or year. Many owners still rave about their 2007 Hyundai Sonata GLS.

2007 Hyundai Sonata-Hyundai

Seven Early Recalls Issued for the 2007 Hyundai Sonata GLS Address Problems With Airbags and Corroding Suspension Parts

The GLS is the base trim for the midsize family sedan. The popular ride features plenty of room to seat five and offers a 2.4L or 3.3L engine.

The vehicle gathered seven recalls issued by the National Highway Traffic Safety Administration over its 15-year lifespan.

One major 2008 recall required inspecting the front passenger seat airbag sensor and replacing it as required. A bad stop light switch was recalled in 2009 and replaced on every sedan.

The most recent recall, launched in 2013, required the replacement of corroding rear cross members to prevent suspension failure while on the move.

Since the last recall launched nearly 10 years ago, any vehicle that you might be considering should have had any of these problems fixed by now.

A 2007 Hyundai Sonata GLS With More than 100,000 Miles May Suffer Engine Failure

Total engine failure is the most common issue reported by drivers at Car Complaints for the 2007 Hyundai Sonata GLS. These failures generally occur after the 100,000 and before the 140,000-mile mark and are associated with both the 2.4L and 3.3L offered on the GLS trim.

While high mileage may be the root cause, it is also possible that a rough idle attributed to a stuck exhaust gas recirculation valve could damage the pistons and combustion chamber.

My Car Specs lists the bad exhaust gas recirculation valve as one of its six common problems related to the 2007 Hyundai Sonata with a 2.4L engine.

Any engine light, hesitation at the lights, or unusual engine noise should be fully investigated by a qualified mechanic.

2007 Hyundai Sonata-Hyundai

Owners Complain of Sticking Brakes and Airbag Warning Lights Randomly Activating

The 2007 Hyundai Sonata GLS gathered a relatively high 676 complaints with the NHTSA. However, the majority appear prior to 2015 and focus heavily on problems with the airbags and brakes.

Owners experienced airbag warning lights that would not shut off due to a faulty sensor in the passenger seat. The airbag complaints dropped significantly after the completion of the 2008 recall that replaced the passenger seat sensor.

Squealing, vibrating, and sticking rear brakes are often reported on the 2007 Hyundai Sonata. Drivers experienced early failure of rotors, calipers, and brake pads.

The most-reported problem is with the brake lights, which stick in the on or off position. The source of the problem seems to be a bad fuse box that may also cause havoc with the air conditioning, cabin lights, and radio.

Owners in the Hyundai Forums report saving up to $500 on the fuse box alone when they opt for buying from a parts store instead of the dealership.

2007 Hyundai Sonata-Hyundai

An Open Investigation for Unpredictable Acceleration Puts the Spotlight on Safety Concerns

Four safety investigations are associated with the 2007 Hyundai Sonata GLS, but only one remains active and is focused on defects in the electronic throttle control system.

The earlier three investigations all resulted in recalls and a warranty extension for its electronic seatbelt pre-tensioner system.

The open investigation at the NHTSA focuses on unpredictable acceleration. The initial petition filed in 2021 cites sudden runaway throttle conditions that are associated with eight deaths.

Multiple complaints indicate that the driver has no warning of sudden acceleration and braking may not slow the vehicle.

2007 Hyundai Sonata-Hyundai

2007 Hyundai Sonata GLS is Generally Regarded as a Reliable Older Car if Properly Inspected Before Buying

While all these problems may make it sound like the 2007 Hyundai Sonata GLS is a ride to avoid, its host of loyal owners disagree. Many drivers at Vehicle History continue to rave about its fuel economy, dependability, and affordability.

“Good size for a family car. Front and back seats have a lot of room. Good on gas. Big trunk, does not wear on tires. Love it,” says one owner.

So, if you are looking for an older, affordable sedan, take the 2007 Hyundai Sonata GLS to your trusted mechanic and have them look for its most common problems. If it has a clean bill of health, it is likely a good investment.

Photos: Hyundai

Frequently Asked Questions

By Stephanie Stephan | Apr 6, 2022

How Reliable is the 2007 Hyundai Sonata?

The 2007 Hyundai Sonata was given a “great” predicted reliability rating of 83 out of 100 by J.D. Power, and U.S. News & World Report gave it a 9.7 out of 10 score for safety. However, a large number of NHTSA complaints (676) exist for the 2017 Sonata that mainly include faulty airbags, Electronic Stability Control modules, and alternators.

Do Hyundai Sonatas Have a Lot of Problems?

2011-2013 Hyundai Sonatas suffer from faulty ACUs or Airbag Control Units and the ABS in 2006 Sonatas was recalled for leaks resulting in engine fires. While later Sonatas generally earn high predicted reliability and safety ratings, the Theta II engine in 2011 and 2012 models was recalled for serious problems that include seizing, knocking, and fires.

Owner Reviews

accountCircle Connor R on February 16, 2022
The worst purchase of my life.
I purchased my car from a third party vendor 6 years ago. Since then I have had endless repairs needed. I have paid to have the engine rebuilt, as well as many other very expensive repairs. I am now facing the need to purchase another new car because the current needed repairs outweigh the value of my car. The interior of my car is now also beginning to have problems. My cruise control buttons no longer work, as well as one of my window buttons not working well either. Lastly, the lock and unlock button is beginning to only work on occasion. I truly hate my car, and cannot wait for a new one.
accountCircle Audrey G on October 23, 2021
Hyundai sonata- reliable and safe (for the most part).
One of the things that do not work as well as the front end. The suspension does not work too well (even when I replaced it), and at one point the ball joint came out, causing me to lose my front wheel. If you consider buying this car, I would strongly suggest having a mechanic check out the front end to make sure that it is in decent condition. The transmission, air condition, steering, and other features of the car work well, and I haven't needed to replace anything else besides parts of the front end.
accountCircle Samantha J on April 7, 2022
Great luxury sedan, but not a good purchase.
2 years after I purchased my Sonata, used by one couple for 7 years, the engine failed. A piston rod snapped and damaged the cylinder. The top of the engine was dry due to oil not reaching it and the repairs cost more than the car is worth. It is now undrivable and I still owe on the loan. Perhaps the newer models are much better, but I do not recommend the 2007 Sonata.
accountCircle Haley R on August 30, 2021
Avoid leaving it in direct sunlight, or the paint will start to chip.
The paint on this model is known for chipping after being left in the sun. So while my paint color is very pretty, it is chipped in places. I have also had issues with the electrical system in my car, sometimes the lights will randomly go off, and the airbag light is faulty, so it stays on all the time. And the door handles in the back have both fallen apart
accountCircle Michelle R on July 15, 2021
It's functional in that it serves its purpose getting me from A to B.
I do not like that I'm right at 90k miles and am now having issues with being able to turn my lights off, the passenger side seatbelt sign flashes randomly regardless of it are occupied or not, one of the lightbulbs in the radio display is out so now it is fuzzy, and you cannot lower the height of the front passenger seat.
accountCircle MANOS on November 5, 2022
SONATA 2,4 2007
VERY BEAUTFUL CAR. I HAVE IT FROM NEW 2007. AFTER 15 YEARS AND 250000 klm THE ENGINE BROKE DOWN COMPLETLE WITHOUT ANY NOTICE. A METALLIC NOISE AND AFTER 30 KLM. BROKE DOWN COMPLETLE . AND THE BODY CRACKED. THE COST IS VERY HIGH. IS IT WORTHY TO CHANGE ENGINE OR JUST SCRAP IT???
accountCircle Cassie L on March 28, 2022
The problems of the Sonata.
I live in Utah, and I live on a massive hill. The Sonata is horrible I am the snow and sometimes it is so bad that it is impossible to make it up the hill. The brakes are also very touchy. The a/c is only half effective and had to be on the highest setting most of the time.
accountCircle Taylor J on February 22, 2022
Struggle Bus is Trucking Along
The biggest problem with this car is that there is a fault belt that causes major oil leaks and it caused my alternator to go out twice, as well as created a domino effect of sensor issues. All are manageable and easy to fix, it's just time-consuming and inconvenient.
accountCircle Heather H on November 2, 2021
Sonata would recommend car
There have been problems with the battery. The ESC off light has come on numerous times. It has caused the engine to turn off and on while I was driving. I like the fact it drives easily, and it does speed up pretty easily. It's fairly easy to drive no complications.
accountCircle Mary L on August 10, 2021
2007 Hyundai Sonata 4 door sedan
I have had numerous issues with the car including battery and power steering. I currently have 91,000 miles on the car and it is in decent condition. It is in need of a couple repairs but is holding up while I save up for the repairs.
accountCircle Valerie S on January 5, 2022
Great, but has major issues.
This vehicle has issues getting oil from the bottom of the engine to the top, and even with proper maintenance, my piston snapped and began damaging the cylinder less than 2 years after purchasing it used.
accountCircle Tom R on November 11, 2021
To many little items seem to need constant repair.
I like the power of the vehicle. Too many little things have gone bad on it. Power windows and headlights have problems.
avatar S.D. Grady
Sonya is a vastly experienced journalist who loves to share her passion for everything automotive. You can usually find her at the track covering NASCAR, taking a test drive, or drooling over the latest models at the local auto show.
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