Check Engine Light On Problems of Infiniti QX56

Tl the contact owns a 2013 Infiniti Qx56. The contact stated while driving 55 mph, the vehicle misfired and stalled. The check engine warning light was illuminated and flashing. The vehicle was towed to willis Infiniti (2101 NW 100th st, des moines, IA 50325, 855-638-2280) and was diagnosed that the transmission was faulty. The vehicle was not repaired. The manufacturer was contacted however, no further assistance was provided. The failure mileage was 118,000.

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Catalytic converter failure on driver's side resulting in check engine light.

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I had my catalytic converter replaced back in December 2016 . There was a recall for catalytic converter so I had it replaced. Now the check engine light is back on so I got it checked out and was told that I needed to replace the catalytic converter again. 35k miles later.

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The contact owns a 2011 Infiniti Qx56. The contact stated that the check engine warning light illuminated upon start-up. The vehicle was taken to two separate independent mechanics to be diagnosed. The contact was informed of diagnostic trouble codes: p0420- p0430 catalyst system inefficiency. The vehicle was not repaired. A local dealer was not contacted however, the manufacturer was made aware of the failure, case number: 35634299. The approximate failure mileage was 78,000.

Was driving home, a/c was on, all lights was on, all of a suddenly lost of power to the engine and while going up hill, so I floor it so the vehicle so I can get past over the hill then I started to smell something through the vents like it was on fire coming from the engine bay so I pulled over and turned off the engine pop the hood but didn't see no fire, then when I tried to start the vehicle back up it wouldn't so I waited for few minutes and tried again, the vehicle started back up so I went on driving again but it didn't show any thing on the dash no check engine light at all. It done it again lose of power to the engine and I started smelling something burning like metal coming from the vents again lucky I was close to home when it done it again, I shut the vehicle off and put the scanner on it, it throw out 3 codes but it never showed up on the dash saying check engine light at all. For the 3 codes one was for fuel pump other was for 02 sensor and the other was ecm I believe, wish I wrote them all down.

At 82,000 miles the check engine light came on indicating both catalytic converters were bad. They are warrantied to 80k miles and of course manufacturer would not help. This needs a recall, google Qx56 catalytic converter and see how many people have had this issue.

Takata recall-the check engine light come on shortly after the time chain was replaced which the codes indicated the cataylic converter needs to be replaced. The vehicle was stationary at my house. The time chain was replaced approximately 8 months ago.

The contact owns a 2011 Infiniti Qx56. The contact stated while driving 65 mph, the check engine warning light illuminated. The contact continued driving to his destination. The vehicle was taken to the local dealer southwest Infiniti (10495 southwest fwy, houston, TX 77074, (832) 742-1614) where it was diagnosed with needing the catalytic converter to be replaced. The vehicle was repaired however, 3 years later he experienced the failure. The vehicle was taken back to dealer, where it was diagnosed with needing the catalytic converter to be replaced for a second time. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 67,000.