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Was browsing through forums on this issue already. So I have not driven my RDX too much over the last month and a half..few drives here and there. Drove the vehicle last night and today a good distance to see if the auto idle stop would engage. No luck. I’m thinking the battery level is still low since the vehicle has been sitting for a while? Anyone else with the same experience? All the other criteria for the idle stop to work is either on/off
This is a recurring theme across Honda/Acura land. A quick search will show many people asking a similar question.
FWIW, mine takes at LEAST 20 minutes of driving now to begin functioning. The car sits for days now and it's still relatively cool here. There are engine/transmission temp, and battery voltage presets that have to be met before the system begins shutting down the engine. Be sure to drive a solid 30 mins before saying definitively that it's not working. Yeah, seems like a lot...
I was unable to drive for several months. It took longer than I expected for Auto Stop Start to come back. Now that I am driving less due to general circumstances, A.S.S. has stopped working again. It is all about the state of charge for me.
Thanks for the replies. Ya so I drove the car the last 3 days. Yesterday I took it on a 60-70 mile drive down the highway and back..about an hour or so drive. Was surprised the feature still did not come back on. I’m going to disconnect the battery for 10-15 min today..maybe that will “reset” something and go from there. Outside of that I guess I’ll just leave it since everything else seems to be okay.
Thanks for the replies. Ya so I drove the car the last 3 days. Yesterday I took it on a 60-70 mile drive down the highway and back..about an hour or so drive. Was surprised the feature still did not come back on. I’m going to disconnect the battery for 10-15 min today..maybe that will “reset” something and go from there. Outside of that I guess I’ll just leave it since everything else seems to be okay.
This is a long shot, but have you had service performed recently? I ask because starting the engine with the hood open, something that can happen during service, can disable AIS.
The battery disconnect may, or may not, work depending on the root cause. Please report your result. Good luck
Thanks for the replies. Ya so I drove the car the last 3 days. Yesterday I took it on a 60-70 mile drive down the highway and back..about an hour or so drive. Was surprised the feature still did not come back on. I’m going to disconnect the battery for 10-15 min today..maybe that will “reset” something and go from there. Outside of that I guess I’ll just leave it since everything else seems to be okay.
one long drive did not do it for me.
Just keep driving and be patient. It seems to need a full state of charge.
Just keep driving and be patient. It seems to need a full state of charge.
With cars sitting a lot these days, battery state is definitely a strong candidate for buggering up AIS. I'd like to know what the power off current draw is in these tech-heavy cars.
Was browsing through forums on this issue already. So I have not driven my RDX too much over the last month and a half..few drives here and there. Drove the vehicle last night and today a good distance to see if the auto idle stop would engage. No luck. I’m thinking the battery level is still low since the vehicle has been sitting for a while? Anyone else with the same experience? All the other criteria for the idle stop to work is either on/off
Same here. I've had mine about 1.5 months. It had been engaging as it should.
Lately I have been driving short runs and it has been "unavailable"....I figured it was from lack of driving/battery as others have stated.
Yeah, I think Honda/Acura is leaning more to the conservative...disabling that feature before the battery gets to a dangerously low level and causes other unwanted mayhem...
Now I know why it never shuts the car off while in the fast food drive through.
The only time I really want it to work it never does.
Well as long as it starts the car when I put it in P to shut it off......
I'm glad this is my wife's car......
You don't need to put it in P to shut it off, Just push the start stop button, and it will go automatically into park.
AND you can set it to also set the parking brake!
Great car.
BTW, most start stop sytems work the way you experienced., the car must get to about 3 mph or it won't shut off. Why would you want it to shut off if you are creeping up at a left turn lane to make a turn when the light is green?
Unrelated but can you guys check the left side of your trunk where the seat lever is? The dealership did some work and it seems a trim piece is missing. Can anyone confirm? Right side looks finished. Attaching a pic
Unrelated but can you guys check the left side of your trunk where the seat lever is? The dealership did some work and it seems a trim piece is missing. Can anyone confirm? Right side looks finished. Attaching a pic
Yeah, that's the access for the fuel fill door manual release. There should be a cover that's now missing.
Yeah, I think Honda/Acura is leaning more to the conservative...disabling that feature before the battery gets to a dangerously low level and causes other unwanted mayhem...
While conditional presets for stop/start systems are similar across brands, specific requirements are likely unique to each company. Honda may indeed have higher requirements for battery state.
Yea we will chalk it up to lack of driving for now. FYI - I did disconnect the battery for about 30 min and that did not fix the issue.
FYI----I went for a longer drive around town yesterday afternoon...and also went down one interstate exit (so I could go over 40 mph). Drove about an hour, it never engaged.
I got in the car about 4 hours later to grab dinner....it worked the entire time, at stop lights and in the drive thru.
Doesn’t look like the cover is in the same spot as the OP picture.
I removed it to get a picture, it's kind of hidden when in place. You have to lean over in the trunk and look up to see it, I would never have known it was there if I hadn't gone to look for it.
FYI----I went for a longer drive around town yesterday afternoon...and also went down one interstate exit (so I could go over 40 mph). Drove about an hour, it never engaged.
I got in the car about 4 hours later to grab dinner....it worked the entire time, at stop lights and in the drive thru.
I've seen similar randomness, and based on the web searches I've done, so have many others. (Not only Honda/Acura) I'm just going to accept the systems quirks and assume that's just how it is. In my case, I didn't want a new car with a nonfunctioning system, but that's not really a concern now. It's just flaky -- at least while in my current driving pattern.
Mine worked consistently the first 9 months I had the car. Then, I left the car "ON" in the garage for about an hour while it was doing the nav map update in November. AIS stopped working altogether after that.
In January, the car was in the shop for a week while they replaced the infotainment unit and re-imaged all the software / firmware in the car. After that, the AIS started working almost without exception. I had to do the nav update again and this time, I did it while driving. AIS continued to work even after that. Lately, it hasn't been working much at all but it does surprise me occasionally.
You all probably figured this all out and moved on, but all of the scenarios posted above didn't apply to my car when I was wondering why AIS didn't work for me. Finally realized it was due to my HVAC being set at "Lo". Pasting what I found in the manual below:
Auto Idle Stop does not activate when:
• The Auto Idle Stop OFF button is pressed.
• The driver’s seat belt is not fastened.
• The engine coolant temperature is low or high.
• The transmission fluid temperature is low or high.
• The vehicle comes to a stop again before the vehicle speed reaches 3 mph (5
km/h) after the engine starts.
• Stopped on a steep incline.
• The transmission is in a position other than (D.
• The engine is started with the hood open.
u Turn off the engine. Close the hood before you restart the engine to activate
Auto Idle Stop.
• The battery charge is low.
• The internal temperature of the battery is 14°F (−10°C). or less.
• The climate control system is in use, and the outside temperature is below −4°F
(−20°C) or over 104°F (40°C).
• The climate control system is in use, and the temperature is set to the Hi or Lo.
• is ON (indicator on).
• The dynamic mode is changed to Snow or Sport+ mode.
04-17-2020, 08:02 PM
