To clarify, I just started searching the forum (should have done that first). I dont think I have the shudder. I have never experienced an issue when driving slow in a straight line. The issue I am describing only happens when turning (corners, etc.).

 

What year and model do you have? We have a 2015 QX60 that had that issue. The problem was a known transmission issue (was not recalled, but dealers know about it and are authorized by Infinity to repair it). It took a day and a half.

 

This does not sound normal. Get thee back to the dealer and have them check it out.

 

Agreed, doesn't sound normal. Have it checked out by Dealer.

 

Thanks for the responses! We brought it in and they said it was showing a fault code for the coupler? in the rear axle. They said it was a known issue and would be the cause of the sound. Notice I never said anything about a sound? That's because I never heard a sound. Rather, I experienced a feeling. I explained this to them and they assured me the coupler would fix the issue. We pick it up tonight. I guess we will see...

 

I just took my 2015 QX60 in for the same issue...weird vibration and slip when turning left or right. They came back with a diagnosis of the rear coupler and are replacing it today (hopefully). Has your vehicle been running issue free since the repair?

 

I think I have the same issue, exactly as described. Like the old 4w drive trucks felt in the front , but this is in the back when you turn.

 

yup

Yes, the rear coupler 100% took care of my issue!

 

Its a hydraulic feeling when pressure is applied while turning. When you catch a line turning there is pulsating in the wheel causing you to have to adjust your line. Just a poor design and normal for this vehicle. Heavy steering combined with poor suspension. It does get a little better if you drive in normal rather than sport.

 

Sorry to bring this thread back. I think I have the same problem with my vehicle but don't want to spend a fortune with the dealer. What is the part number please?

 

Warranty Repair of Electronic Coupling Assembly

I have attached the part numbers from the repair of my 2015 AWD.

 

Yes my ‘17 had the same issue fixed free of charge and aggravation, rear coupler felt like the car was in awd

 

Same issue here in our 14. Thanks Magicman32 for posting the parts. My closest dealer is 2 hours away and they have quoted me 1800-2000 for the repair. I want to find a repair person in my hometown but everyone is afraid it has to be programmed. Can anyone confirm this, I'm out of warranty now so not really worth the drive and wait if it can be done local.

 

Looks like this is a very common issue for the QX60 also with Nithan's Pathfinder.

 

Quick note based on the very fast availability of parts this issue may have a tsb or Nissan recall involved ask hard before spending. I mention this because the repair took about an hour AND they gave me a loaner. Usually that signifies someone else is paying.

 

All wheel drive QX60's only-

Any noise you feel or hear from the undercarriage while turning at low (40mph and under) speed is indicative of a bad Rear Differential Coupler (RDC). $2,700 dealer repair or <$500 DIY.

Easy diagnosis: crawl under rear of vehicle just past passenger door. You'll see RDC bolted onto the end of the diff. They're usually cast silver and have a black 'pizza stand' plate bolted directly to the drive line (4 bolts to driveline, 6 bolts for the other end of RDC to diff).

You will see a typical gray plastic plug (female/male) attached via a plastic push clip. Unclip plug and test drive. If sound/feeling disappears you just diagnosed it for free. New RDC part runs $1500 at your dealer, $1K Infiniti dealer online sales via Ebay search or $300-500 ebay used. Several well made install videos on YouTube (search QX60 rear coupler). Takes about 30min-1 hr.

Note: unplugging does not hurt the car. Just turns it into 2WD front.
Also, It's plug and play. No coding during install needed by dealer.

Technical Service Bulletin:
Classification: RA12-003f
Reference: ITB12-072f
Date: September 23, 2020

2013 JX35, 2014-2019 QX60, 2014-2019 QX60 HYBRID;
VIBRATION AND/OR NOISE WHEN MAKING LOW SPEED TURNS

 

Amazing detail, thanks for the info.

My JX35 AWD is 10 years old (2013 model year, delivered July 2012) and I’m getting more and more concerned about what may/will fail soon. Will it be the CVT, Transfer Case, Diff Coupler (new…)….

 

Thanks for the research, I feel I am about to be need of my 4th coupler (they seem to last about 60k mikes) so far my two repairs are $200 total out of pocket. 1st warranty, second labor=$200.

 

This is very lovely, thanks for the time invested in the research. This is very helpful.

 

Hello - I have a JX35 with a similar issue. Is there a fuse I can pull to disable this unit ? Or I have to just disconnect it ? Thanks

 

From CBad’s comment earlier in the thread you have to disconnect it, not pull a fuse.

Easy diagnosis: crawl under rear of vehicle just past passenger door. You'll see RDC bolted onto the end of the diff. They're usually cast silver and have a black 'pizza stand' plate bolted directly to the drive line (4 bolts to driveline, 6 bolts for the other end of RDC to diff).

You will see a typical gray plastic plug (female/male) attached via a plastic push clip. Unclip plug and test drive. If sound/feeling disappears you just diagnosed it for free. New RDC part runs $1500 at your dealer, $1K Infiniti dealer online sales via Ebay search or $300-500 ebay used. Several well made install videos on YouTube (search QX60 rear coupler). Takes about 30min-1 hr.

Note: unplugging does not hurt the car. Just turns it into 2WD front.
Also, It's plug and play. No coding during install needed by dealer.

 

I thought I would copy and post this as it deals with this issue directly and the CPO warranty specifically, these are my impressions of the problems and repairs applied they are in no way confirmed by any one from Infiniti

CPO Warranty in reality

Ok so I’ve had the donkey (2017 QX 60) for about 5 years and 171k miles, when I purchased it the salesman/sales manager told me they would change the reported mileage to put me into the 5yr/unlimited mileage category. Picture enclosed of warranty page, I had an issue with the rear AWD coupling...

www.infinitiqx60.org

 

Hello there,
Congratulations on your new QX60! It's understandable that you want to ensure everything feels right with your recent purchase.
The sensation you're describing, where turning feels less smooth and akin to the sensation of turning in 4x4 mode on dry pavement, could be influenced by various factors. Here are a few possibilities to consider:

1. Tire Condition:
   • Check the condition of your tires. Uneven tire wear or tires in need of replacement can affect how the car handles during turns.
2. Wheel Alignment:
   • Improper wheel alignment may contribute to a less smooth turning experience. Have the wheel alignment checked to ensure it meets the manufacturer's specifications.
3. Suspension Components:
   • Issues with suspension components, such as worn-out shocks or struts, can impact the handling of the vehicle during turns.
4. Transfer Case or Differential Issues:
   • While it's less common, issues with the transfer case or differentials in an AWD system could potentially lead to unusual sensations during turns.

Considering this is a used vehicle, it might be beneficial to have a qualified mechanic or a dealership service center inspect the vehicle. They can conduct a more detailed examination to identify any specific issues related to the handling you're experiencing.
If there are no apparent issues with the components mentioned above, it's also worth noting that different vehicles can have slightly different handling characteristics, and what might feel unusual to one driver could be considered normal for another. However, if the sensation is significant and concerning to you, seeking a professional opinion is a prudent step to ensure your peace of mind and the safety of your vehicle.
I hope your QX60 provides you with many enjoyable miles on the road!