So these came on today...

[lKoRTy]

Had 4was come up couple of days ago but restarting got rid of it. Today while driving 4was and stability came on and then the other three. This is covered by extended warranty, right?

Does it have to do with ABS unit as I've read in some other threads?

P.S. when I parked and turned it off/on they went away, but who knows for how long.

[Debonair]

Unfortunately without hooking up a capable scan tool and reading the diagnostic trouble codes from the applicable systems all you can do is guess.

[lKoRTy]

So an update - dropped it off, they ran the codes, found some issues, ordered 4WAS module. Part is something like $2700. Plus labor most likely over 3k.
Extended warranty just paid for itself almost twice over!

I will post exact codes once get the car tomorrow.

[lKoRTy]

Update #2: Originally it was throwing 16 codes. Module was replaced, 4 more codes remained - seems to be communication between the 4was gear and the module, so they are looking at replacing the gear, that's another $4400. Warranty sent an adjusted to authorize, but should be covered. (I hope). Service adviser (awesome guy) said that warranty doesn't want to cover full diagnostic (3-4 hours) and only wants to cover 30 minutes, but he will try to talk to them. Total so far is $7500.

[Debonair]

Ouch.

[lKoRTy]

Update #3: Warranty approved the part, sans diagnostic time ($300). So out of $7800 bill I owe that plus $100 deductible. Car will be ready next week though as they don't have the part.
Warranty ultimately paid for itself 4 times.. To those who still wonder if they need it... YES.

[austin713]

Jesus, that kinda makes me glad i dont have 4 wheel steer. hearing that number would have had me selling that on the spot.

[Debonair]

Jesus, that kinda makes me glad i dont have 4 wheel steer. hearing that number would have had me selling that on the spot.

Amen.

[mig0s]

How is the 4was module so expensive kol

[Mjkkb2]

module plus gear plus diag time plus labor for all components = S***LOAD OF $$$.

[Mjkkb2]

also it looks like Infiniti has scrapped the 4was system all together for the newer vehicles

[lKoRTy]

I will post exactly what was wrong and replaced once I get the car back next week.

It seems some markets still offer 4was?
http://www.infinitipress.me/assets/infi ... gue-EN.pdf

[lKoRTy]

So. Invoice total came to almost $7,900, out of which I had to pay $400 ($100 deduct and $300 diagnostic)

Replaced parts:
Rear active steering actuator assembly: 55705-1MT0A
4WAS controller unit: 285H0-1MT1B

I can put all the DTC's it threw if anyone is interested, but adviser said this is the second time in his career that he had this type of issue, so seems pretty rare.

Off to enjoying windows down weather and stillen!

[ILOVEMYM37X]

Man thank goodness you had coverage. Even though my car is fully loaded, i am glad i don't have 4WAS.

[CarolinaMMan]

So how do I find out if my model comes equipped with 4WAS...? I have the light in the dash, but figured it was generic for all M series and if it is hooked up it will work. Also when does it become engaged? While racing around a curve?? Someone help me!! Lol

[Debonair]

I think all the RWD "S" models include the 4WAS. The dash light for it should not come on unless the car is equipped with it.

[blittle]

Seem awfully weird. I have the exact same issue happening right now, my car has 73,500 miles. Your car had 73,341 miles. The link below, same issue 74k miles. Just out of warranty, WTF and I just bought the car with 66k miles.

post6665647.html?hilit=4was#p6665647

[tfs1975]

Saw this post and figured I'd reply. I am the OP from the link you posted. End result ended up with me trading in the car and going with Lexus GS 350 F Sport. The issue was never figured out and It was looked at by Nissan specialty mechanics, Infiniti and then I even tried to help the Lexus dealership fix it so that they could re sell it on their lot as it was a nice car. The fix was never found and the issue was never solved. As stated in my post, I changed out the 4WAS actuator (rear rack and pinion) as well as the 4WAS controller. I still have them even though I know longer have the car and will be pulling them out of the attic and posting them on EBAY and other sites for sale shortly. I had the Nissan Specialist tell me that he thought it was a bad ground somewhere. Shortly before trading it in, I had a fuel sender code come up as well. That was the last straw for me. I know a lot of people on this site swear by the extended warranties but a high end car like Infiniti should have a better life span and maintenance requirements than say a Honda, which it does not. Same thing with BMW. My M37s was the last Infiniti I will own not just because of the issues but also because the Infiniti service department was less than knowledgeable about diagnosing and fixing. If it didn't tell them specifically via computer diagnostics or via FSM how to fix, they were basically clueless. Not really mechanics in my opinion. I will admit however that no one was able to determine the cause of the issue. At the same time, it is their product and they should have been able to figure it out. I am sorry that I cannot provide more info to you. More than welcome to purchase my parts at a much reduced rate and try on your own end. Can't make any guarantees though.

Good luck.

Seem awfully weird. I have the exact same issue happening right now, my car has 73,500 miles. Your car had 73,341 miles. The link below, same issue 74k miles. Just out of warranty, WTF and I just bought the car with 66k miles.

post6665647.html?hilit=4was#p6665647

[reggiebrown40]

Saw this post and figured I'd reply. I am the OP from the link you posted. End result ended up with me trading in the car and going with Lexus GS 350 F Sport. The issue was never figured out and It was looked at by Nissan specialty mechanics, Infiniti and then I even tried to help the Lexus dealership fix it so that they could re sell it on their lot as it was a nice car. The fix was never found and the issue was never solved. As stated in my post, I changed out the 4WAS actuator (rear rack and pinion) as well as the 4WAS controller. I still have them even though I know longer have the car and will be pulling them out of the attic and posting them on EBAY and other sites for sale shortly. I had the Nissan Specialist tell me that he thought it was a bad ground somewhere. Shortly before trading it in, I had a fuel sender code come up as well. That was the last straw for me. I know a lot of people on this site swear by the extended warranties but a high end car like Infiniti should have a better life span and maintenance requirements than say a Honda, which it does not. Same thing with BMW. My M37s was the last Infiniti I will own not just because of the issues but also because the Infiniti service department was less than knowledgeable about diagnosing and fixing. If it didn't tell them specifically via computer diagnostics or via FSM how to fix, they were basically clueless. Not really mechanics in my opinion. I will admit however that no one was able to determine the cause of the issue. At the same time, it is their product and they should have been able to figure it out. I am sorry that I cannot provide more info to you. More than welcome to purchase my parts at a much reduced rate and try on your own end. Can't make any guarantees though.

Good luck.

I agree with this statement. I'm probably sounding like a broken record right now but Infiniti has fallen off in terms of service of their own cars. I still have the erratic idle which I'm going to live with until I sell this car in a few months. The car rattles so much that I don't have enough dynamat to cover it all. The warranty on my Q45 was 5 years 60K miles; on my M56 they've dropped it down to 4 years and 48K miles (I believe) Not sure why it got lowered but that's unacceptable by today's standards. Like this gentleman said -- if the Infiniti dealership can't fix your car, who can? When I took the "master tech" out for a test drive he said and I quote "the bogging down in 3rd gear is designed that way so that you get the best fuel economy." OK......

[mkymouse99]

So what extended warranty company covered this issue? I have an extended warranty and brought it to my dealer and they said the warranty company wouldn't cover it. Maybe I need a 2nd opinion.

[ssmrico]

I got my car from a guy a month ago. could I still get extended warranty for it? if so from who or had to be from a dealer?

[Jstephens]

Same issue with my 2011m37s, this is some bulls%*t. I took it to Infiniti Gwinnett and they were clueless, said I needed all of the same parts that you replaced over $6500.. smh. I went to youtube and ended up cleaning the grease out of the rear actuator box which worked for about 3 months. I was so happy but then the 4was ,slip and other lights came on again. I cleaned again but this time the problem stayed. Just to be clear for anyone that’s wondering if this problem affects the car ..the answer is 100% yes, immediately after the lights came on , I could feel the car not picking up, bad shifting and definitely terrible handling..the handling alone is a major safety issue. Really nice looking car but complete garbage as long as this problem exists.