2025 Honda Ridgeline Electrical Problems

On two occasions, immediately after re-fueling the vehicle, the engine auto idle stop failed to restart the vehicle. Both times this happened at busy intersections. A series of messages appeared on the display. I was flustered because cars behind me were honking as I was blocking traffic so I don’t exactly remember the error messages. One message said to put the transmission in park. Another said to hold the brake and the engine start button. Eventually the engine did re-start by holding the start button down.

NHTSA ID

11755798

Incident

Aug 8, 2026

While sitting in traffic with my 2025 Honda Ridgeline, with the engine stopped as the brake had been fully applied, when I released pressure off the brake, my vehicle would not restart as it normally would in this situation, thereby stranding me in a serious traffic situation. I notified the police and my vehicle was eventually towed to the nearest Honda dealer to try to determine what the issue was . Scary situation since my vehicle only has approximately 25K miles on it.

NHTSA ID

11755532

Incident

Aug 7, 2026

since I purchased this truck brand new from the dealer, the brakes always had air in the lines. No matter how many times I bleed the brakes, there is still air in the line. From my understanding, previous years of this truck had master cylinder issues. I went to the dealer and they refused to fix the issue, because I already attempted to fix the problem. Also, the car doesn't start when shut off during hot weather and you want to start the car again. You have to wait and try again. The car is laboring to start again. This vehicle is also known for slow starts.I hope you take this matter seriously. This is the issue with every brand new ridgline. Take your pick. I paid over 50k for a new truck and have to deal with these issues.

NHTSA ID

11755067

Incident

Apr 1, 2025

Car just shut off while I was driving. There was no power. It would not start. At first it sounded like it wanted to start and then it just made no sound at all. The brake was hard as well. I put the hazards on but was in the fast lane on Cleveland Avenue in Fort Myers. I believe there are traffic cameras that will show the car sitting while cars were trying to get through the traffic light. The car finally started however I have no idea why it happened. We could have been killed sitting in the fast lane of a three lane road. There were three of us in the car.

NHTSA ID

11754845

Incident

Aug 4, 2026

Start stop has failed to restart engine on several occasions.

NHTSA ID

11754660

Incident

Aug 3, 2026

When stopped in heavy traffic, the auto idle engaged. I got a "System problem detected. Shift to Park." warning. When I shifted to park the vehicle experienced a total electrical blackout, including a loss of hazard lights. It took several minutes for the modules to reboot. This happened 3 times in 20 minutes as I attempted to find a safe place to pull over. My life was put in danger because it was dark, raining heavily, and my hazard lights were inoperative. It happened a few hours after I bought the car at the dealership. I am waiting for a tow truck now. It is available for inspection.

NHTSA ID

11749696

Incident

Jul 10, 2026

The auto stop start shuts off and does not always restart. While in traffic at a light multiple times it has shut off and not restarted .I have to turn off the vehicle and put it in park and restart the vehicle!

NHTSA ID

11749576

Incident

Jul 4, 2026

Auto Idle Stop fails to restart the engine quickly, causing delays or stalling resulting in a delayed response, hesitation, or the vehicle stalling completely in the middle of traffic, leaving me stranded until jump-start or fully cycle the ignition.

NHTSA ID

11746258

Incident

Jun 20, 2026

What component or system failed or malfunctioned, and is it available for inspection upon request?: The auto start stop feature failed, resulting in the vehicle lurching then dieing without any prior indication. How was your safety or the safety of others put at risk?: The vehicle's lurch and sudden loss of power occurred at a red light when turning left. If I were the first car in line, it would have left me in the intersection with a 65 mph speed limit, creating the potential for a significant accident. Has the problem been reproduced or confirmed by a dealer or independent service center?: No it has not, but was taken to a dealer in the last two weeks for this problem, in which all systems were operating as intended. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others?: Yes it has where the problem could not be identified. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?: No warning lamp or messages were displayed prior to this safety incident. This is the third occurrence, I made another report on XXX. If needed, I can find the report number Vehicle failed to restart in 5 attempts, on the 6th attempt, the vehicle started but took an extended amount of time compared to normal. Video link immediately after the incident, the service advisor suggested I film this if it were to happen again. : [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11740897

Incident

May 29, 2026

On two separate instances in the past month, I have come to a complete stop, and the engine automatically shuts off. Upon restarting it either failed to restart the engine or on this last occurence turned the engine over once, made the car lurch and took a few seconds for the engine to idle, almost as if the engine wasn't fully started and the starting motor kicked off as well as turned over slowly. The vehicle has 24,000miles and the batery is approximatley 15 months old and OEM.

NHTSA ID

11737930

Incident

May 14, 2026

Over the past several months, the auto idle stop on my 2025 new honda ridgeline has been acting up, not always kicking off timely when lifting my foot off the gas pedal. It also completely failed to restart twice, disabling the car completely while at a traffic light until I could restart it. The first incident was late last year. The most recent one this past Thursday.

NHTSA ID

11733733

Incident

Apr 23, 2026

Similar to NHTSA Case #11713532 and 11657197. The idle stop system (AIS) does not always restart causing safety risk. I have been stranded multiple times now where the Ridgeline shuts off while waiting to turn on a highway and then will not restart. Today the dash lights would go out as if the battery was completely dead. I just had this in a few weeks ago for the same issue and the dealership replaced the battery. This was only a temporary fix. It is sitting at the dealership now and they are working with Honda. Please help.

NHTSA ID

11731145

Incident

Apr 14, 2026

Auto Idle Stop (AIS) system, a fuel-saving feature that temporarily shuts off the engine when a vehicle is at a complete stop. Drivers say that in some cases, the engine does not automatically restart, leaving vehicles stranded in traffic. Several complainants reported needing to jump-start their vehicles to get them moving again.

NHTSA ID

11713532

Incident

Jul 28, 2025

I bought a new 2025 Honda Ridgeline truck from Hendrick Honda, Easley, SC and within the first 24 hours the instrument display showed an “auto idle stop error” and to get service at the dealer. I took it back to the dealer within two days, and they said they ran diagnostics and couldn’t find nothing wrong. The service advisor said “it will probably just go away as you drive it more.” Well, after a couple thousand miles now, it has not gone away but sporadically reappears while driving. I called the service advisor back and he said I could bring the truck back and they could try a diagnostic test again. I asked him to instead contact Honda automotive as this is a known issue with the Ridgeline then call me back to notify me of the solution. He never called back.

NHTSA ID

11706747

Incident

Sep 26, 2025

This is a brand new 2025 Ridgeline with only 900 miles. The Collision Mitigation Breaking System and the Lane Keeping Assist System does not work properly on my vehicle. The dealer where I bought the vehicle (Dick Brooks Honda in Greer) has insisted there's nothing wrong with the vehicle on two occasions. However, I took the vehicle to another dealer; the master technician said there might be something wrong with the radar system in my vehicle and to take it back to the original dealer. The original dealer won't even acknowledge what the other service department said about the radar system. Honda is just parroting what the original dealer is saying. I have a brand new vehicle that is not safe to drive and nobody is helping me. I have captured video on a GoPro of some incidents when this occurs. These systems go off for no apparent reason. When I manually turn off the CMBS, there's a persistent warning message that appears on the infotainment screen entitled, CMBS Problem. That message says: "The Collision Mitigation Braking System has a problem. Restart your vehicle. If the indicator remains on, have your vehicle checked by a dealer." The CMBS is malfunctioning, but how do I know if the system is off when I turn it off when this message appears? The dealer where I bought the vehicle from says "this is normal", but I know that is not true because I have looked at other 2025 Ridgelines and this message does not appear.

NHTSA ID

11666262

Incident

May 23, 2025

Dog walked on neutral button while truck was in motion, causing moving vehicle to unsafely go into neutral. Same thing can happen with a child or passenger who accidentally pushes the fully exposed button.

NHTSA ID

11663199

Incident

Apr 2, 2025

Engine "Stop/Start" turned off when trying to make a turn. When it did the steering would not move. Also when "Stop/Start" turns off it was dangerous when turning. I email Honda and they called me back. They could have it disabled but it would cost $80 and I would have to buy the part and they would install it. This is a new truck bought last month.

NHTSA ID

11657197

Incident

Apr 1, 2025

On several occasions, while driving at night, the Auto dimming headlights would not dim. Last evening, on 2 different occasions , on a rural road, no road signs, mailboxs . nothing that would cause a issues, the headlights would not go from high beam to regular (or Low beam.) 2 different times , vehicles coming at us, the lights would not dim. Time was apx 9pm , not a cloud in the sky. I had all so noticed while driving on a interstate , the same thing would happen, the lights would not dim,, drive maybe 50' or 5-10 seconds later. they would dim. There seems to be no rime or reason of if or when they will dim. We had 18 and 22 Outback and they worked perfectly , where the Ridgeline has malfunctions. Asking the dealer they have not heard of anything wrong .. I have not had them to check , but have heard from other owners of the Ridgeline and they are complaining about the same thing. Uptill either the 22's or 23 models the auto dimming worked perfectly .. Then Honda changed either the location of the sensor or changed the software.

NHTSA ID

11655505

Incident

Apr 17, 2025

Unsafe auto high beams. They do not come on over 45mph. They have a mind of their own and seem to always come on and off at the wrong time. Also is dangerous to the oncoming vehicles that become impaired due to the high beams coming on when another vehicle is approaching. Especially most dangerous when you are on a 2 lane highway. Also the adaptive cruise control is inconsistent and seems to be very laggy and brakes way too hard.

NHTSA ID

11653024

Incident

Mar 21, 2025

I purchased a 2025 Honda Ridgeline and noticed that the turn signal is hardly audible. If you have the radio on or the windows rolled down, you will not hear the warning tone. In the infotainment system there is an adjustment that allows you to raise the volume of the warning indicator and even at the highest volume you can barely hear it. I also found that I am not alone and that this ia a common problem with some Honda models. Every other car I have ever owned made a mechanical or audio tone to warn that the signal light is active. This makes the driver behind you question whether you are taking a turn or not, should they pass you or not? I took it to the service department, and they could not tell me how to increase the volume. I had them go to another 2025 Honda Ridgeline and it had the same problem. I think that it is supposed to work with the infotainment system but even with their settings the issue persisted. Even the blind spot detection is inaudible. I think this is negligence on behalf of Honda. You can search on "Honda turn signal inaudible".

NHTSA ID

11625364

Incident

Nov 14, 2024