Auto stop start does not work properly in this vehicle after repeated fixes by Honda and dealership. Vehicle sometimes does not restart after stop start engaged at stop causing a stall like event. Auto stop start tries to start vehicle after stop but vehicle either stalls/fails to restart or is extremely slow to restart. Vehicle has been repaired, new starter, new battery, new relays less than one year ago and vehicle is now experiencing the same issues. Owner (me) is now disabling feature every time vehicle is started to prevent system from engaging.

- Ozark, MO, USA

My 2020 Honda Ridgeline has an Auto Idle/Start system. The truck engine turns off when it stops, then automatically turns on when brake is released or gas pedal pressed. There was a Honda notice issued that the system may not automatically restart. A fix (software update) from Honda was implemented on my truck on 03/29/23. This "fix" did not work. On 09/05/25 at 1:25 pm I pulled up to an intersection. The Auto Idle system automatically turned off the engine as intended. About 2 minutes later, when the brake was released and gas pedal pressed, the engine did not restart. The truck stalled. Various efforts (~ 1 minute of panic) ensued to start the engine. Eventually, put the truck in park, waited, then started the engine. This situation occurred during high traffic at a busy intersection. It caused other drivers to take risks pulling out in front of other cars to get around my stalled vehicle. It was a very dangerous situation. A class action lawsuit was filed against Honda about this. Honda claims their software update fixed the problem. My scary experience shows that it did not fix the issue. Their auto idle/start system is simply unsafe. Also, it is not possible to permanently disable it.

- Forest, VA, USA

Whenever I-??m driving in my vehicle everything seems to be fine until I stop at a red light. On three separate occasions, while my vehicle is stopped it will automatically go into neutral and stall. This causes my truck not to run properly. I have to shut my car off, and then turn it back on to put it in drive and operate it like normal. I-??m unsure what my cars issue is but it is an inconvenience and a safety concern due to it keeps happening while in traffic.

- Columbus, OH, USA

The vehicle auto stop start function failed causing the vehicle to stall. Recall for previous known issue with this system has been performed. Vehicle has a brand new battery installed by Honda service at a Honda dealership. When outside temperature is below 10 degrees Fahrenheit intermittently at a stop where the vehicle auto stop start engages and stops the engine the system fails to restart. Warning in panel states to press brake and push start button to restart vehicle. Vehicle stalled and was immobile at intersection until driver restarted vehicle manually.

- Ozark, MO, USA

The plastic fuel line coming from the gas tank cracked and there is no way to replace a small hose and Honda make me purchase a brand new tank for a repair of $2000 that should have been covered under warranty. The line failed at 25,000 miles

- Smyrna, GA, USA

On numerous occasions (at least 5 times) the following occurred: Upon exiting the highway after approximately 90+ minutes of driving, the truck's check engine light starts flashing and the vehicle goes into "limp mode" and will barely accelerate to avoid oncoming traffic from behind. The vehicle must be stopped and turned off to clear the engine light and return to normal performance. The on-board computer does not store any diagnostic codes when this occurs. There are numerous documented incidents exactly like this one on the Honda Ridgeline Owners forum. I have taken my truck to the dealer three times with no resolution. The dealer consults with Honda Tech support, who is unsure how to solve this issue. Assorted repairs have been documented on the aforementioned Honda forum, to no avail. This is definitely a safety issue when the truck loses power in traffic. I have almost been hit from behind while the vehicle is in limp mode. The initial occurence happened in November 2021 and most recently again April 16, 2022. Essentially for a year and a half Honda has done nothing to fix this problem.

- Menomonee Falls, WI, USA

On two occasions, I was driving at freeway speeds in a cold climate for about an hour. I decelerated onto an off ramp. Upon acceleration, I received a flashing check engine light and reduced power. I was able to limp home at decreased speeds. I was able to pull codes P0304 - cylinder 4 misfire, P0305 - cylinder 5 misfire, C342D - manufacturer control. The problem went away after restarting the vehicle. I took the vehicle to the dealer, but they were unable to see any codes or reproduce the issue.

- Dunlap, IL, USA