2020 Nissan Titan

The issues I'm experiencing with this vehicle is delayed pedal response and a whole slew of transmission problems. There are no codes or check engine lights on. When coming to a stop and the vehicle downshifts you can visibly see the RPMs go up with each down shift and sometimes the downshift is so harsh going to 1st gear that it feels like another vehicle has bumped me from behind causing the truck to jerk forward and make a clunking sound. There is also a problem when upshifting where the RPMs will jump up before shifting into the next gear. I had a situation where I was turning left on a green light with traffic coming and had plenty of time to make it but when I rolled out into the intersection and hit the gas nothing happened for over 2 seconds. The RPMs didn't move and when I pressed the gas harder the vehicle went into a low gear and the RPMs shot up to about 5000 RPMs and accelerated rapidly to just miss an incoming vehicle. Vehicle has inconsistent shifting where it shifts ok one day and other days it acts erratically. I have been to two different dealerships and both say the truck drives as designed. I have had all the software updates done on this truck that were supposed to correct these issues but they have not helped. I opened up a case with Nissan support and they admitted these transmission problems were being addressed by their engineering team and a new software update would be available some point in the future, this was a year ago.

The contact's husband owned a 2020 Nissan Titan. The contact stated while her husband was driving 65-75 MPH, he noticed a smoke odor. The contact's husband veered to the side of the road and immediately exited the vehicle. The contact's husband saw flames between the cabin and the rear of the vehicle. The vehicle became engulfed in fire. The contact's husband attempted to extinguish the fire with fire extinguishers and sustained significant burns on both hands. Additionally, the contact's husband sustained bruises on the left leg. The fire department assisted the contact's husband in extinguishing the fire. The contact's husband received medical assistance and was advised to follow up with a primary care Doctor and a burn specialist. A police report was filed. The vehicle was towed to a tow yard, where it was totaled. The contact related the failure to an unknown recall that was completed on the vehicle in February, 2023. The local dealer and a second dealer, ABC Nissan (1300 E Camelback Rd, Phoenix, AZ 85014), were notified of the failure. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

The problem I am writing about concerns this vehicle and recall #PC773 EGI HARNESS. Reference must also be made to Nissan #NTB20-89 dated December 8, 2020. I purchased this vehicle from Bates Nissan (5501 East Central Texas Expressway, Killeen TX 76543, 254-781-3837) on February 18, 2021 used with 5448 miles. I was told that it had been owned by an employee at the dealership. It is my understanding, as described in NTB20-89, that a Nissan initiated "stop sale" was put into effect in December of 2020. However, Bates Nissan failed to complete this recall prior to selling it to me and did not inform me that there was an open recall on this vehicle. On July 22, 2022 I had a Nissan dealer (LeBrun Nissan, 396 Grant Ave, Auburn NY 13021, 315-253-7700) attempt to perform this recall. The technician did not find any evidence of visible damage on or near the transmission power wires OEM splice, however step 25's "continuity test" of the transmission power wire failed. I am a highly skilled engineer and have reviewed NTB20-89, and find that the transmission power wire continuity test to battery ground is flawed for the following reasons. 1) The process does not isolate (disconnect all ends) the transmission power wire. Therefore, it quite likely that some DVOM's will show continuity to battery ground causing a false positive. 2) Since the recall is to determine if this wires insulation has failed, a continuity test is not appropriate since it cannot measure the integrity of the wire insulation. Therefore, this test could also test as a false negative and allow vehicles to return to service with insulation that is still compromised/weak. Instead, an insulation dielectric test should be performed on this wire. Issue #2 is concerning, since vehicle safety may be at risk and is the primary reason I am informing NHTSA. My hope is that NHTSA has technical people that can review NTB20-89 and discuss with Nissan. I have no confidence that Nissan can fix this issue.

I the last 6 months the truck has the TCM replaced after leaving me stranded on the side of the road. prior to completely going out the two dealers that looked at the truck said there was nothing wrong. the truck has had to be towed in three times to clear the transmission because it thinks it in park. This does not include the multilabel times of having to pulling off the road to shut the truck to reset the transmission. The high pressure fuel pump has gone out then five weeks later the low pressure fuel pump went out. Now a week later the IPDM went out.

THE DASH BLINKS OUT AND RESETS WHEN DRIVING, ESPECIALLY WHEN WE ARE CHARGING OUR PHONES. WE WERE TOLD BY OUR DEALER'S SERVICE DEPARTMENT (AFTER KEEPING OUR TRUCK 2 DAYS) THAT IT WAS OUR CHARGERS. SO WE BOUGHT NEW CHARGERS AND THE PROBLEM CONTINUED. WE BOUGHT NEW PHONES AS WELL, SAME ISSUE. THEY HAVE HAD OUR TRUCK 10 DAYS NOW AND WE HAVE NO ANSWERS. THE ISSUE OCCURS WHEN THE VEHICLE IS IN MOTION.