Help!!! Oxygen Sensor & Brakes! 2009 V6 Sedan

[GeeWestla]

Hello I have a 2009 Genesis sedan a few months ago I was experiencing brake problems my pedal would go all the way down and would not break. Originally I thought it was my brake master so I went ahead and changed it with no luck on fixing. I eventually took to a brake shop who changed all brake pads rotors and once again the break master cylinder. A bit better but not 100%. I am aware hyndai had a problem with brakes on 2009-2011 models and I do recall them changing my brake fluid on one occaision. I believe that was the start to my problems. Reason being I don't like going to dealer for maintenance as they provide bad service. I'm at the point where I'm not sure if it's my brake booster or brake lines that have gone corroded but I tell u one thing I'm getting tired of this problem. Also oxygen sensor just came up I plan on making appointment at dealer to get this fix hopefully at no cost and advice of my brake issue witch I know they will try to charge me over 1k to fix. Anybody else have this issue? I remember receiving a letter from a attorney regarding lemon law on this vehicle. Anybody else? ... I plan on fixing this car to trade in for a corvette.

 

[landtuna]

Your brake problems are symptomatic of either air inside the system or a bad (leaking) or low fluid in the master cylinder. Assuming the previous brake repair did not resolve the problem completely I would take the car back to them. They should have evacuated all cylinders and brake lines when they replaced the parts and braking efficiency should have been 100% when you got the car back.

Make sure they understand which brake fluid to use in your Genny.

The O2 sensor is a wear part and most likely not covered under warranty. Neither is it a high cost item so any competent shop should be able to replace it without issue. No need to take to a dealer.

 

[Mark_888]

Hello I have a 2009 Genesis sedan a few months ago I was experiencing brake problems my pedal would go all the way down and would not break. Originally I thought it was my brake master so I went ahead and changed it with no luck on fixing. I eventually took to a brake shop who changed all brake pads rotors and once again the break master cylinder. A bit better but not 100%. I am aware hyndai had a problem with brakes on 2009-2011 models and I do recall them changing my brake fluid on one occaision. I believe that was the start to my problems. Reason being I don't like going to dealer for maintenance as they provide bad service. I'm at the point where I'm not sure if it's my brake booster or brake lines that have gone corroded but I tell u one thing I'm getting tired of this problem. Also oxygen sensor just came up I plan on making appointment at dealer to get this fix hopefully at no cost and advice of my brake issue witch I know they will try to charge me over 1k to fix. Anybody else have this issue? I remember receiving a letter from a attorney regarding lemon law on this vehicle. Anybody else? ... I plan on fixing this car to trade in for a corvette.

Brake problem is failure of the HECU (anti-lock braking system). Due to poor manufacturing design, internal valves of the early Genesis HECU units made by Continental easily corrode. As part of a recall, Hyundai replaced the DOT-3 brake fluid with DOT-4, which supposedly has some corrosion resistance properties, but in no way fixed the problem or prevents it from happening on the older HECU units.

You must get this fixed by a dealer at a cost of about $2500 or more. Do not attempt to repair yourself, due the complicated nature and speciallzed equipment required to flush the fluid through a new HECU.

You can then try and file a complaint with Hyundai Motor America to get reimbursement. To help you case you should spend 5 minutes and file a complaint with the NHTSA, and mention that you had the brake fluid replaced with the recall, but HECU failed after that.
https://www-odi.nhtsa.dot.gov/VehicleComplaint/

 

[GeeWestla]

Brake problem is failure of the HECU (anti-lock braking system). Due to poor manufacturing design, internal valves of the early Genesis HECU units made by Continental easily corrode. As part of a recall, Hyundai replaced the DOT-3 brake fluid with DOT-4, which supposedly has some corrosion resistance properties, but in no way fixed the problem or prevents it from happening on the older HECU units.

You must get this fixed by a dealer at a cost of about $2500 or more. Do not attempt to repair yourself, due the complicated nature and speciallzed equipment required to flush the fluid through a new HECU.

You can then try and file a complaint with Hyundai Motor America to get reimbursement. To help you case you should spend 5 minutes and file a complaint with the NHTSA, and mention that you had the brake fluid replaced with the recall, but HECU failed after that.
https://www-odi.nhtsa.dot.gov/VehicleComplaint/

Yes I remember recall I had brake oil changed and they never adviced of the dangers or that this was just a band-aid to my problem. Eventually it got worse with one day experiencing no brake power! The brake shop I recently took to explain this to me as well and I was aware of the problems so they just clarified what I had thought all along. I too believe the brake lines are corroded and your price range seems about right. I will eventually end up taking to dealer and will be demanding that they pay for repairs as I have been dealing with this problem for a while. I also received a letter from a lemon law attorney regarding my
Model. I might just end up contacting them. It's a beautiful car but it's a shame it's giving me these type of problems I have never had any brake problems other then wore down pads in any car I have ever owned.

 

[Gunkk]

Never heard of corroded brake lines in a Genesis. The HECU for sure (happened to my '09 pre-recall), but not the lines.

 

[Mark_888]

Never heard of corroded brake lines in a Genesis. The HECU for sure (happened to my '09 pre-recall), but not the lines.

The corrosion occurs on the internal HECU values, due to the coating material previously used in early models. The DOT-4 fluid helps prevent corrosion, but cannot eliminate it on the older HECU models.

 

[GeeWestla]

The corrosion occurs on the internal HECU values, due to the coating material previously used in early models. The DOT-4 fluid helps prevent corrosion, but cannot eliminate it on the older HECU models.

Thanks mark you were truly helpful. I have found a Hyundai website stating that they will replace te hecu module free of charge per Hyundai recall number 114. This is my problem! I will be contacting them shortly to make appointment to get this mess fixed. Thanks a lot to everyone else who replied.

 

[Mark_888]

Thanks mark you were truly helpful. I have found a Hyundai website stating that they will replace te hecu module free of charge per Hyundai recall number 114. This is my problem! I will be contacting them shortly to make appointment to get this mess fixed. Thanks a lot to everyone else who replied.

Can you post that link?

 

[GeeWestla]

Can you post that link?

http://www.aboutlawsuits.com/hyundai-genesis-recall-brake-corrosion-56233/

 

[Mark_888]

www.aboutlawsuits.com/hyundai-genesis-recall-brake-corrosion-56233

Looking at that link, I am not sure that Hyundai is agreeing to fix the HECU if the car is out of warranty, and if the recall procedure had previously been done to replace the brake fluid with DOT-4. If the HECU failed or was visibly leaking before the recall procedure was performed, then they would pay to replace it, or also replace it if the car was still under the 5 year - 60K mile warranty (or extended warranty if purchased).

But good luck and let us know what Hyundai says about paying for it.

______________________________

Help support this site so it can continue supporting you!

 

[GeeWestla]

Looking at that link, I am not sure that Hyundai is agreeing to fix the HECU if the car is out of warranty, and if the recall procedure had previously been done to replace the brake fluid with DOT-4. If the HECU failed or was visibly leaking before the recall procedure was performed, then they would pay to replace it, or also replace it if the car was still under the 5 year - 60K mile warranty (or extended warranty if purchased).

But good luck and let us know what Hyundai says about paying for it.

Replacing fluid does not take care of the damage already done. their simple fix didn't not work instead of changing module they just changed fluid. They knew about this problem to continue letting me drive with brake problems sounds like a safety issue and not a wear and tear problem. I have a 10 year 100k warranty but who knows if they will honer that. Regardless I will get this tix and will fight the good fight because I'm not paying for a ****ed up lemon car. ****ed up brakes is a no no in any vehicle! I will dump the vehicle at the dealer and refuse to pay if it comes down to it. I'm already eyeing a corvette! My credit is good but I can toss this all away if they don't want to fix my ****ed up car. Hey if I crash I can sue for their Faulty vehicle!

 

[Mark_888]

Replacing fluid does not take care of the damage already done. their simple fix didn't not work instead of changing module they just changed fluid. They knew about this problem to continue letting me drive with brake problems sounds like a safety issue and not a wear and tear problem. I have a 10 year 100k warranty but who knows if they will honer that.

Yes, you are correct. It is a safety hazard and IMO Hyundai should proactively replace all the HECU's with the bad valve design that easily corrodes. Not sure why the NHTSA has let them off the hook on this.

If you have an extended warranty, then it will be covered. I assume you are not talking about the drivetrain warranty (HECU is not part of drivetrain), but an extra extended warranty that you paid for.

 

[GeeWestla]

Yes, you are correct. It is a safety hazard and IMO Hyundai should proactively replace all the HECU's with the bad valve design that easily corrodes. Not sure why the NHTSA has let them off the hook on this.

If you have an extended warranty, then it will be covered. I assume you are not talking about the drivetrain warranty (HECU is not part of drivetrain), but an extra extended warranty that you paid for.

Update. Car has been at dealer while they receive parts all covered under my warranty plan. They will go ahead and change brake master cylinder "again" and brake booster as well as hecu module once step 1 and step 2 are done. The oxygen sensor was due to a missing seal in the master cylinder witch will all be replaced. Also received 2 day car rental free of charge. after countless headaches and money spent im glad I will finally have a working car again.