Nine problems related to brake light on have been reported for the 2009 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Hyundai Sonata based on all problems reported for the 2009 Sonata.
Brake pedal light faulty stays on always.
Brake light faulty it stays on continuously.
The brake light switch is not functioning/broken causing the brake lights to stay on and esc button is not functioning.
My esc and air bag malfunction lights are illuminated and my brakes mal-functions. Recall campaign 110 recalls the brake light switch on some of these cars but not on my year and model. I am suggesting that the recall may need to be expanded to include the 2009 Sonata since the switches seem to malfunction in that make/model/year as well.
Driving on the interstate, 'esc off' light came on; at the same time, the cruise control quit working and I noticed that the brake lights all quit working at the same time.
Esc light constantly on no brakes lights.
Basically it appears that I'm having the same brake switch issue common with many Hyundais. However, currently the '09 Sonata is not covered under any recall. The problem began at least a year ago when the esc off light would turn on at random times. It would normally clear upon turning the car off. A few days ago the esc off light would not turn off. Today I could not shift into park from drive. After searching the internet I quickly found the brake switch issue. I confirmed that my brake lights were not functional. This is something occurs with absolutely no warning which is a bit scary since I drive home on a major highway. I'm not sure how long the brake lights had been out. I also noticed that the cruise control stopped functioning when the esc off light became permanent. However, for some reason it started working again when the shift lock problem occurred. Odd. Not sure why an additional issue would make the speed control functional again.
During vehicle operation, several people passed me and made various hand signals and gestures (profane, specifically), as I apparently had lost functionality of my brake lights during my journey home from work. With no indication on the operator console to alert the operator that this had occurred, I did not realize that the brake lights were not functioning until I had arrived to my home (barely averting 2-3 rear end collisions along the way). When I pulled into my drive way and attempted to shift the car from drive (d) to park (p), I was unable to advance the shifter passed reverse (r). I had to place the vehicle in neutral (n) and engage the handbrake. I retrieved a flathead screwdriver to engage the shift lock on the shift console and placed the vehicle into park (p). After learning of this issue, I took the vehicle to the nearest dealership, who advised me that the brake switch was faulty and needed to be replaced. I paid to have it replaced. A short time later, I saw the press release from Hyundai that several vehicles were being recalled because of this exact issue, though, after contacting the dealership and Hyundai direct, I learned that my vehicle was not part of their campaign. As a degreed mechanical engineer, I maintain that this issue should be part of the recall and consider this to be a design fault of the vehicle. If I had been rear ended, I could have been met by a lawsuit (not to mentioned sustained an injury) because of not functioning brake lights. I've made several contacts with Hyundai and they will not budge on their stance that this is a design issue. There must either be a fail safe to ensure that the brake lights are functional or, at the very least, an alarm on the operator console alerting the driver that the brake switch has stopped functioning. I am very appalled with Hyundai's behavior and response to this issue.
The brake lights do not illuminate when the brake pedal is depressed. The gear shift not able to be shifted out of the park position. The electronic stability control (esc) malfunction light illuminates. Very similar to recall for same model on another year (2006).