2007 Hyundai Sonata GLS problems include potential engine failure, corroded brakes, and faulty fuse box

The 2007 Hyundai Sonata GLS presents some mechanical challenges as it ages. Engine failures beyond the 100,000-mile mark, poor rear brake design, and an investigation of poor throttle control may require a second check. However, it still gets positive reviews from owners.

Key points

• The 2007 Hyundai Sonata GLS is the base version of the midsize sedan known for its space, good fuel economy, and low maintenance costs.
• The recalls issued by the National Highway Traffic Safety Administration included the replacement of faulty airbag sensors and a rear brake light switch.
• Drivers experience problems with rear brake lockup, fuse boxes, and relatively early engine failures.
• An open NHTSA investigation is looking into crashes caused by sudden, uncontrolled acceleration.
• The most common problems are not indicative of a bad model or bad year. Many owners still rave about their 2007 Hyundai Sonata GLS.

First seven recalls issued for 2007 Hyundai Sonata GLS address issues with airbags and corroded suspension parts

The GLS is the base version of the midsize family sedan. The popular vehicle offers plenty of space to seat five people and offers a 2.4L or 3.3L engine.

The vehicle collected seven recalls issued by the National Highway Traffic Safety Administration during its 15-year useful life.

A major 2008 recall required the front passenger seat airbag sensor to be inspected and replaced as necessary. In 2009, a defective brake light switch was recalled and replaced on all sedans.

The most recent recall, initiated in 2013, required the replacement of corroded rear cross members to prevent on-the-go suspension failure.

Since the last recall started almost 10 years ago, any vehicle you are considering should already have one of these issues fixed.

A 2007 Hyundai Sonata GLS with over 100,000 miles may experience engine failure

Complete engine failure is the most common problem reported by drivers to car complaints for the 2007 Hyundai Sonata GLS. These failures typically occur after 100,000 and before 140,000 miles and are associated with the 2.4L and 3.3L offered in the GLS trim.

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

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

Any check engine light, light flickering, or unusual engine noises should be thoroughly investigated by a qualified mechanic.

Owners complain about stuck brakes and random activation of airbag warning lights

The 2007 Hyundai Sonata GLS garnered a relatively high number of 676 NHTSA complaints. However, most appear before 2015 and largely focus on airbag and brake problems.

Owners have found that the airbag warning lights do not turn off due to a faulty sensor in the passenger seat. Complaints about air bags dropped significantly after the completion of the 2008 recall that replaced the passenger seat sensor.

Squeaky, rattling, and sticky rear brakes are often reported on the 2007 Hyundai Sonata. Drivers experienced early failure of the brake rotors, calipers, and pads.

The most reported problem is with the brake lights, which remain on or off. The source of the problem appears to be a faulty fuse box which can also wreak havoc on the air conditioning, cabin lights and radio.

Owners in the Hyundai Forums Reports savings of up to $500 on the fuse box alone when they choose to buy from an auto parts store instead of the dealership.

An open investigation into unpredictable acceleration sheds light on safety issues

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

The three previous investigations resulted in recalls and extended warranties for its electronic seat belt pretensioner system.

The open investigation at NHTSA focuses on unpredictable acceleration. The original petition filed in 2021 cites sudden accelerated conditions associated with eight deaths.

Several complaints indicate that the driver is not warned of sudden acceleration and that braking may not slow the vehicle.

The 2007 Hyundai Sonata GLS is generally considered a reliable old car if properly inspected before purchasing.

While all of these issues may make the 2007 Hyundai Sonata GLS seem like a car to avoid, its loyal owners disagree. Many drivers at Vehicle History continue to rave about its fuel economy, reliability, and affordability.

“Good size for a family car. The front and rear seats have plenty of room. Good fuel. Big boot, no tire wear. Love it,” says one owner.

So if you’re looking for an affordable older sedan, take the 2007 Hyundai Sonata GLS to your trusted mechanic and have him investigate the most common problems. If you have a good health history, it’s probably a good investment.

Photos: Hyundai