So I am sure there has been tons of threads about this. I am at 37 K, check engine light came on this week. Will take it to the dealer tomorrow. ABS/ESC has been coming on and off sporadically but I think I will tell him about it too.

Anything I can expect from this before I take it to the dealer?

Free oil change? :trophy:

I'd definetly tell them about the ESC/ABS lite coming on. Why hold back? Unless they come on when you are using the safety feature. :whistling: They need all the info they can to help solve your problem.

I told them about the abs/esc when it first started coming on. Because it does not stay on, they said they cannot do anything about it. no light, no code. But I will tell them again about it when I turn the car because of the check engine light.

I would opine that if you have an AutoZone in your area, use their loan-a-tool service and check out the engine code. That way you could be a little more specific to the dealer, but methinks maybe it has to do the the Traction Control?? :whistling:

Last night, second time this has happened, both times on the same offramp.
It must be cursed, when I got back on the gas halfway through the turn there was no response from the engine followed by sudden downshift and high revs.


ESC OFF light + CEL light turns on, gone a few hours later both times.

IDK about the first time, but yesterday I was running on about 3 gallons of fuel and it is a steep uphill sweeper with the road sloping down to the right. The CEL went away after I filled up the tank.
Is it possible that there was no gas getting to the engine at that angle? Since it was uphill, sloping to the right, and considering i was getting on the gas that would shift mroe weight backwards... Empty light was not on at this point.

I had my v6 sonata in twice for this problem. The first time they found a code C1503 and they reset the computer. The second time they got a code C1513 (Brake light switch sticking) and replaced the switch. Everything has been fine for a year now.

Same thing just happened to me today. Got in the car and the check engine light was on and did not go off. The ABS and ESC lights have been coming and going, but a lot more frequently lately. So off to the dealer tomorrow to get everything straightened out. I know many have experienced the ABS/ESC probs, but this is the first time the MIL has appeared too. Hopefully this is the last time.

Brought it in and they said it was the brake switch that set off the ABS, ESC Off, and Check engine light.

I thought it might be something different b/c others didnt have the MIL come on too.

my check engine light was on, I topped off all the fluids. I have not seen it since. Have not see the other lights though.

It may be a faulty throttle position sensor as well. Some 06 and 07 Sonatas have this problem (there was a tech bulletin about that as far as I remember). Mine did the same thing twice (it happened when I was merging on the highway with fairly cold engine at full throttle, the engine jumped to limp mode, and esc/abs light came on). My dealer replaced the sensor and the problem went away.

Well, I guess I spoke too soon. My ABS and ESC lights have been coming on just about every time I drive my sonata now. Back to the dealer I go.

Don't feel bad, I'm on my 2nd brake switch at 44,000 miles. Good thing we have a 10 year warranty!

what was the outcome .. I am now getting the ABS/ESC OFF lights and was curious what the dealer found.