2019 Infiniti QX60

COMPONENT/SYSTEM FAILURE: Timing chain and timing chain tensioner/guide assembly failure. The timing chain has stretched prematurely, causing the vehicle to fail to start, loss of acceleration response, check engine light illumination, and audible rattling noise from the engine compartment. The failed components are available for inspection upon request at the dealership. SAFETY RISK: The vehicle would not accelerate when the gas pedal was pressed, creating a dangerous situation where the vehicle could not respond to driver input. This poses a serious safety risk in traffic, highway merging, or emergency evasive situations. Additionally, the failure to start leaves occupants stranded without warning. DEALER CONFIRMATION: The problem has been diagnosed and confirmed by an authorized Infiniti dealer. The dealer determined the cause is timing chain stretching and has quoted $6,500 for repair, which includes timing chain, tensioners, and guides replacement. PRIOR WARNINGS: Approximately one week prior to complete failure, the vehicle began exhibiting a rattling noise from the engine. The check engine light illuminated. Shortly after, the vehicle would not start and would not accelerate when the gas pedal was pressed. KNOWN DEFECT: This is a documented defect. Infiniti Technical Service Bulletin ITB19-027a addresses timing chain-related diagnostic trouble codes on 2017-2024 QX60 vehicles with the VQ35DD engine. The timing chain tensioner and guide failure on VQ-series engines is a well-documented premature wear issue affecting vehicles well before expected service life. At 80,000 miles, this failure is premature and indicative of a design or manufacturing defect, not normal wear. REQUEST: I am requesting NHTSA investigate this safety defect and consider requiring a recall for affected Infiniti QX60 vehicles. Nissan/Infiniti corporate has declined goodwill assistance despite the existence of TSBs acknowledging the issue.

FEB (sensors) display on our Infiniti QX 60 dashboard - this occurred within several months when we received the car. The car was inspected by their Infiniti Repair dealer and was told the problem was solved. It was not and the same issue appeared after several miles of driving. Reported to Consumer Affairs at Infiniti and was informed its an Infiniti Dealer issue. Further electronic defects occurred as I was not able to change gear from Park to Drive. Infiniti towed the car to their Dealer and purportedly they corrected. The same issue continued and placed several more calls to Infiniti Consumer affairs. Was told "we are sorry but we cant help you". Eventually brought this issue up to the highest level at Infiniti to [XXX] - head of Nissan North America. No action yet again - and was called by an assistant and thanked me for bringing it to his attention. informed Infiniti via email to [XXX] that it can be catastrophic at Front sensors are defective and do not function. I have video's and written correspondence to Infiniti. I am available for a Zoom call or can be contacted at [XXX]. Respectfully yours, [XXX] Brooklyn, NY INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

TL* THE CONTACT OWNS A 2020 (NA) INFINITI QX60. WHILE IDLING, THE VEHICLE SPONTANEOUSLY ACCELERATED. ADDITIONALLY, THE RPMS INCREASED TO 7,000 FOR 20 SECONDS. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO INFINITI OF WILLIAMSVILLE (8137 MAIN ST, WILLIAMSVILLE, NY 14221, (716) 633-9585), BUT THE FAILURE WAS UNABLE TO BE DUPLICATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 1,000.