NHTSA Complaint #11484407 — 2016 HONDA ODYSSEY

While accelerating, especially up an incline, the vehicle (2016 Honda Odyssey) shudders as if the transmission is repeatedly slipping. Instead of rising smoothly, the tachometer bounces up and down as it is increasing. If you plotted the rpms as a function of time, it would look something like a "sawtooth" pattern. The issue seems to go away once a cruising speed is reached. This jerking makes me worried that the transmission could fail at any time and result in an emergency situation and/or accident. The vehicle is currently at the dealership but they seem uncertain as to what will fix the issue. They want to start with a $600 transmission flush. Then if that doesn't fix it, they want an additional transmission flush. And if that still doesn't fix the issue, then they want to try replacing the torque converter. This appears to be an issue known to Honda but of which owners have not been made aware. It appears to be a flaw in Honda's software resulting in an inability to maintain the transmission fluid in an safe and appropriate range. Honda should be required to notify all owners and issue a recall to fix this issue.