NHTSA Complaint #11665655 — 2016 NISSAN TITAN

Dear Sir/Madam Masked Oil Pressure Warning in 2016 Nissan Titan XD (5.0L) I am writing to report a concerning and potentially dangerous defect observed in a 2016 Nissan Titan XD equipped with the 5.0L Cummins V8 diesel engine. As a Nissan Master Technician with extensive experience in vehicle diagnostics and repair, I believe this specific defect could be a contributing factor to the well-documented crankshaft breaking condition prevalent in these vehicles, which NHTSA is currently investigating. The specific issue I have identified and thoroughly documented on my own 2016 Nissan Titan XD is as follows: Observed Defect: The engine oil pressure gauge consistently reads "normal" (approximately 1/2 scale) at all times, including with the Key On, Engine Off (KOEO). Crucially, the corresponding oil pressure warning light does NOT illuminate during the normal Key On, Engine Off bulb check or at any other time, despite the engine not running. Diagnostic Findings (Summary): Preliminary diagnostics, including unplugging the oil pressure sensor, indicate a likely fault with the oil pressure sending unit itself, causing it to send a false "normal pressure" signal. This specific sensor defect fundamentally compromises the vehicle's critical oil pressure monitoring system. ( the engine is running ok, no other symptoms) Potential Safety Implications and Link to Crankshaft Failure: This defect creates an immediate and severe safety risk because it completely masks any actual low oil pressure condition that the engine may develop. Documentation: I have well-documented photographic evidence of the current occurrence described condition (gauge reading, non-illuminated warning light KOEO) which I can provide upon request to support this report. I urge the NTSB to include this specific oil pressure sensor/warning system defect in its ongoing investigation into the 2016 Nissan Titan XD 5.0L Cummins engine failures Sincerely, [XXX] Nissan Master Technician ASE-1104-7529 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION