Gas Recirculation Valve (egr Valve) problems of the 2011 Hyundai Santa Fe

Something in the engine , harness or module , allows the computer to overheat suddenly , through 3 batters and 2 alternators in 4 months last alternator lasted 2 drives. . . Car dies nancy depressive light show and died then the battery and alternator is fried. Hyundia dealership refusing to check harness or module because my VIN number isn't listed in recall although my car is in the recall. The car has died 4 times requiring towing. The car died when driving after about 10 miles . Car has brand new battery. Starter works fine. It died in the middle if a streetceach time twice was at night. And I am a disabled woman who uses a wheelchair. Monday June 24th was the most recent time at 1 pm in 104 degree heat for 5 hours with a heart condition which was doubly dangerous situation. The battery died eventually leaving me with no hazards. What to charge me to replace a 3 rd alternator without checking harness or module a scam!.

Driving slowly in traffic down a hill my steering wheel, gear shift and brakes locked up. Immediately my generator light came on my dashboard. I managed to pull over and somehow get the car in park. I turned the car off and realized through my manual my generator light was on. I opened the hood and couldn't see anything. When turning the car back on the light went off and everything was fine. That Monday I took the car to my dealership where I bought it and they told me they checked everything. Put the car up to a computer, drove it around, test everything couldn't find anything. I haven't had a problem since but something had to occur for this to happen. I am please with my car otherwise. Just hope this never happens again. It couldn't be weather related because it was neither super warm or super cold it was approximately 50 degrees fahrenheit. Fortunately I was stuck in traffic otherwise if I was driving the speed limit this could have ended up very badly possibly even fatal.

On may 26th 2011 around 6:20 pm when I drove on a local down hill road which is about 400 yard long, at a speed about 20 mph, my car lost brake and power steering. I supposed to stop at a stop sign and make a left turn. When I pressed my brake pedal, my car can't stop and the pedal was very heavy, and I can't turn the steering wheel either. My car kept going straight. I kept stepping on the brake pedal very hard and my car finally stopped in the middle of street gradually. When I looked, I noticed check engine light and oil light were on. I then turn off my car and rest a while. I then turned my car back on and found check engine light and oil light went off and everything seemed back to normal. Worth to note that it was hot that day about 90 degree and I ride on brake slightly for about 300 yard on that down hill road before this incident happened. I was able to drive slowly back home that day and brought my car to the closest Hyundai dealer at 7:30 am the next morning. However the dealer was not able to reproduce the failure and found nothing. I then contacted Hyundai and Hyundai created a case number and suggested me go to the selling dealer. On June 7th, I brought my car to the selling dealer and they could not reproduce the failure either and asked me to come back to them when it happens again. However, it could be dangerous when my car loses brake again when I am driving. I am wondering if there is any other way to investigate root causes or stress my car to reproduce this issue.