If the Check Engine Light illuminates, indicating a problem with the front oxygen sensor, but the sensor tests okay, reprogramming the engine's control computer should fix the problem. Then, the Check Engine Light will no longer falsely illuminate and the acceleration, particularly from a stopped position, will be smoother.
Problems for specific Hyundai models:
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Most reported Hyundai problems
Prior to replacing the automatic transmission fluid (to improve shift quality), make sure that the transmission fluid level is correct. Also, make sure the computer that controls the transmission has the most up-to-date adaptive programming information. When servicing these transmissions be sure to use fluid approved by Hyundai.
A creak or tick type may be noted from the sunroof when closed. This is commonly caused by drying of the sunroof weather strip. Our technicians recommend lubing the sunroof weatherstrip with a dry silicone lube to correct this issue.
On my third set of rear tires with 16000 miles. all worn out on the inside the rest of the tire is like new. Hyundai says that there is not a problem.
When I shift into sport mode and get on the throttle and then down shift into any lower gear it does not want to idle down. It stays around 3,000 rpm's which means I have to do some harder braking. I'm still looking for a solution.
The dealer tells me everything on the computer reads fine with no problems detected.