Car will not accelerate stays between 1500 to 2000 RPM 2007 Sonata V6. Goes at snail pace.

There was a recall involving your year Sonata: There is a recall concerning the esc light coming on due to the faulty brake switch, which can also affect the transmission, which would cause it not to accelerate. you need to take it in to your local Hyundai for the recall to be performed NHTSA Campaign # XXXXX Vehicles: Make/Models: Model/Build Years: HYUNDAI/ACCENT 2006-2007 HYUNDAI/AZERA 2007 HYUNDAI/ELANTRA 2007 HYUNDAI/ENTOURAGE 2006-2007 HYUNDAI/SANTA FE 2007 HYUNDAI/SONATA 2006-2007 HYUNDAI/TUCSON 2005-2007 HYUNDAI/VERACRUZ 2007-2008 Defect: HYUNDAI IS RECALLING 532,633 MY 2006-2007 ACCENT, ENTOURAGE, SONATA, MY 2007 AZERA, ELANTRA AND SANTA FE, MY 2005-2007 TUCSON AND MY 2007-2008 VERACRUZ VEHICLES. THE STOP LAMP SWITCH IN THE AFFECTED VEHICLES MAY MALFUNCTION. A MALFUNCTIONING STOP LAMP SWITCH MAY CAUSE THE BRAKE LIGHTS TO NOT ILLUMINATE WHEN THE BRAKE PEDAL IS DEPRESSED OR MAY CAUSE THE BRAKE LIGHTS TO REMAIN ILLUMINATED WHEN THE BRAKE PEDAL IS RELEASED. A STOP LAMP SWITCH MALFUNCTION MAY ALSO AFFECT THE OPERATION OF THE BRAKE- TRANSMISSION SHIFT INTERLOCK FEATURE SO THE TRANSMISSION SHIFTER WOULD NOT BE ABLE TO BE SHIFTED OUT OF THE PARK POSITION. IT MAY ALSO CAUSE THE ELECTRONIC STABILITY CONTROL (ESC) MALFUNCTION LIGHT TO ILLUMINATE, AND IT MAY NOT DEACTIVATE THE CRUISE CONTROL WHEN THE BRAKE PEDAL IS DEPRESSED. Component Affected: SERVICE BRAKES, HYDRAULIC:SWITCHES:BRAKE LIGHT Corrective Action: DEALERS WILL REPLACE THE STOP LAMP SWITCH FREE OF CHARGE. THE RECALL BEGAN ON JUNE 29, 2009. OWNERS MAY CONTACT THE HYUNDAI CUSTOMER ASSISTANCE CENTER AT 1-800-633-5151. Consequence: ANY OF THESE MALFUNCTIONS, ALONE OR IN COMBINATION, MAY LEAD TO A CRASH. Read more: http://www.justanswer.com/hyundai/6k5zi-hyundai-sante- fe-car-wont-accelerate.html#ixzz3Nyg5BsQP

If you made any repairs to the vehicle try resetting the computer by disconnecting the battery waiting for a bit say 15 minutes and reconnect see if that helps.

I had this issue. Firestone was aware by signs, it was fixed. Cars Hyundai Sonata 2011, 2012 2013 2014 Issue 1: Brake light stays on, even when car is off. will drain battery. Issue 2: when accelerating at times, you will have a sudden loss of acceleration when pushing pedal. If you let up it may resume like normal but it trips the safety as if you are pushing the break and acceleration at the same time, disabling acceleration by computer. Issue 3: Cruise control will not be able to be engaged after first throttle error. meaning the break switch is still being triggered. Simple fix at auto places. Its the rubber gasket they replace, and were aware of it.

The first car I ever rented was a brand-new (only about 50 miles on the digital odometer) Hyundai Sonata. Now, granted, it was clearly a "lemon" --- its front-end alignment was waaaayyyy off, and it was extremely sluggish, especially at first... it drank fuel like there was no tomorrow, and I had to literally floor the accelerator to even get it to move at anything more than a slow crawl; the only way to get it to travel at any kind of decent speed was to hold down the cruise-control button till the throttle totally maxed out, and even then it barely managed sixty; all the other cars were totally whizzing past me on the interstate! The slow performance and fuel-guzzling did eventually improve somewhat after the car was driven a while, but it was still very unsatisfactory, and it was a minor nightmare to drive in higher-speed traffic, since I was always fearful that I could not pass or merge safely.