NHTSA Complaint #11523128 — 2023 PETERBILT 579

1. The components that malfunctioned were the "engine/transmission match" and "transmission communications failure idle torque limit". Yes, my unit is available for inspection at any time. 2. When I had to stop on the freeway due to heavy traffic, the gearshift would not budge, causing an even bigger traffic delay. I had to turn off/on my unit multiple times to be able to pull over, safely. If I were not able to change gears while on the road, it could create a big accident due to faulty parts. 3. Yes, my local Peterbilt is aware of this issue and ordered a "right hand turn stalk shift" (part# Q21-6155-211X) to fix the issue. I was told that this replacement part was out of stock and may need to wait up to 3 months for it. I called other Peterbilt's in CA but everyone was out of stock, with 20 to 30 trucks also waiting for the same part. I even called Canada to see if they had parts, but they are also out of this particular part, with a long waitlist of trucks at their dealerships. Peterbilt had to recall the gearshifts on their units back in 2018: https://www.truckinginfo.com/278812/kenworth-peterbilt-trucks-recalled-for-transmission-gear-display 4. There were no prior indications that the gearshift needed inspection. The vehicle only indicated "Transmission fault" when the gearshift became stuck. When I put my unit in "Drive" the dashboard showed an "!" and when I put my unit in "R" the dashboard showed the unit was in "Drive". These incorrect messages/gear changes can be very dangerous. My unit is a 2023 Peterbilt 579 with only 90K miles, there is no reason it would have a faulty gearshift and no reason why each dealership has a waitlist of 20-30 trucks waiting for this exact part. Paccar clearly did not learn from the 2018 recall 118-A. I believe Peterbilt is knowingly manufacturing faulty parts in an effort to make as many sales as possible. These faulty parts need immediate attention but are completely out of stock nationally.