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Low Oil Level light after oil change

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297K views 74 replies 59 participants last post by  kbe  
#1 ·
This is an update to my earlier posts on this subject in another thread. After what I found I thought it was worth starting a new thread. When I completed the first oil change in my 2010 Outback, the low oil level light stayed illuminated afterward and did not extinguish in 1-2 seconds as expected.

The only reference I see in the owner's manual to this is on page 3-15 where is talks about adding oil when it's gotten low enough to turn on the low oil level light. It says, The engine low oil level warning light will not turn off immediately even if you replace or add engine oil. It will turn off only when the vehicle is idling and the engine is warmed up completely.

After checking the oil level 8 times or so :8: I took it for a drive to get it up to operating temperature as suggested in the manual. After 15 miles it was still on, but when I turned it off and re-started it the light went off as it should have originally.

I called my Subaru dealer to inquire about this event. The technician was very helpful - told me he had heard about this, it only affects 2010 models, but he had never seen it at his dealership. He called me back the following day with the results of his search. I have attached the Tech Tip he provided.

The Tech Tip is a way to turn off the light. I assume it works. I will try it the next time the light stays on. However I'd be more interested in finding out why this occurs, and what the actual fix is. I don't mind doing this each time I change the oil if it's supposed to be that way and everything is working as designed. But since it's not described in the owner’s manual with the oil change information, it’s infrequent enough that my local tech has never seen it, and there's not a ton of posts on here with people asking about it - I have to assume that it's an occasional thing that only occurs under certain circumstances, or with certain vehicles. Therefore, the low oil light staying on after an oil change until you insert and remove a fuse from a diagnostic circuit appears to me to be a defect.

This is my first Subaru ever after buying 20 or more new vehicles, and I really, really like it for what it is. But a big part of me is dissatisfied with a $30,000 machine that has software glitches. It makes me think about things like loose testing standards, and lack of attention to detail. It leaves me wondering something...if there's an obvious problem in the software/firmware that I can see, how do I know that there aren't software/firmware issues that I can't see, or can't see yet...

Does anyone else feel this way, or am I just too picky? And assuming others feel the same way, does anyone have a easy path into SOA to ask this question? Or do I just start with the dealer?
 

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#2 ·
Yes, this is a bit disconcerting on a $30k+ vehicle, but it is a very good illustration of the types of glitches that are typical with the first production year of a "clean sheet" model like the 2010 Outback.

That being said, I am proud to see that the "fix" was discovered by one of the techs at Somerset Subaru! That is the dealership that I use, and I have to say that their techs are very good.
 
#6 ·
psdx said:


This is my first Subaru ever after buying 20 or more new vehicles, and I really, really like it for what it is. But a big part of me is dissatisfied with a $30,000 machine that has software glitches. It makes me think about things like loose testing standards, and lack of attention to detail. It leaves me wondering something...if there's an obvious problem in the software/firmware that I can see, how do I know that there aren't software/firmware issues that I can't see, or can't see yet...

Does anyone else feel this way, or am I just too picky?
Vehicle #73 for me and none have had clock spring problems or oil light problems. The bad almost outweigh the good mileage with this one. Far worse than the Forester. Can't get parts either, clock spring ordered over 2 weeks ago under warranty, nothing yet.
 
#7 ·
Today was my third oil change, and the first time this happened to me. Something I did different this time, I turned the key to the on position with no oil in the car. (No, I didn't start it!) The light came on and did not go off after I added oil. I remembered reading about it here and found this post. I haven't driven anywhere, but I'll see it it goes out after the engine warms up, if not I'll try the fuse trick. This is my first hiccup, so I'm not concerned, but thanks for the post!
 
#9 ·
Quoting myself here. I figured I would drive into town, get the engine warm and see if the light went out before trying the fuse trick. It took about ten miles then the light went out on it's own. I guess it's a little like the under inflated tire light. I have had a couple of tire leaks (I swear they use flint on the gravel road I live on). At any rate, when I pump air in the tire it takes a couple of miles for the light to to off. All is well.
 
#12 ·
How far have you driven the car after the oil change?
More than likely, the light will go off after driving a few miles.
Just as a Check Engine Light will usually not extinguish itself immediately after rectifying the problem that caused the light to go on in the first place, driving a few miles (or a few driving cycles) should cause the "low oil" light to turn off.

Or, you could use the method recommended by the techs at my dealership, which was mentioned previously.
 
#13 ·
I actually drove the car zero miles after the oil change. I let it warm up in my driveway, and the light went out once the engine was fully warmed up. I didn't have to shut down and re-start the engine for the light to go out.

I'm glad that I was able to find this forum-- I had a mild bit of panic trying to figure out why that blasted light was on :)
 
#14 ·
I've done four oil changes since buying the car. The low level light remained lit after the third change for almost 15 minutes after starting the engine - the other three times it went out immediately. I followed roughly the same procedure in changing the oil and filter each time, so I don't know what caused the light to get stuck in that one instance.

It's certainly unsettling to see that warning light, but I don't think it is a serious problem. I know I've got enough oil by the dipstick - as long as the light eventually goes out within a few miles I won't be too concerned.

On a similar warning light issue, I had the low tire pressure light come on last year. After stopping at a gas station and filling all four tires to 36 psi, the light remained on for another 30+ minutes of driving! You'd think these warning lights would reset much faster than that.
 
#16 ·
Twice now in the first year of 2010 ownership I have had the low oil level light go on and it DID need a quart. Selling dealer didn't seem upset. Episode doesn't seem related to a recent oil change.
No it doesn't. My 2011 outback 3.6R with 2300 miles on it had the low oil light on this morning even the oil level is ok shown by the dipstick; there is no oil change has been ever done on this car. I drove it around to warm it up but the light is still on. Need to look at it a bit more tonight. I was suspecting the glass guy might screwed up something yesterday when he came over replaced my windshield. From the discussion here, it doesn't seem to be the case.
 
#25 ·
Had first oil change for 2011 Outback 3.6R limited at the dealer. Drive home without any problem but next day noticed low oil warning light on. Found dealer low fill oil by about a quart. Sorry do not mean to hijack this thread but have anyone had a delay low oil warning and possible explanation to the delay. I did check on below to make sure no leakage
 
#37 ·
My first oil change was at 1000 miles, about a month ago. I don't drive very much, and a full year had passed. About two weeks after the dealer did the 'free' oil change, the Oil Level light came on. I had to add about 3/4 of a quart.

My guess is that these engines are prone to develop some air pockets, and possibly the oil filters themselves take a while to become full. These engines hold a LOT of oil, and I am not too concerned about this Oil Level light coming on AFTER the system was just drained. If it continues to be an issue, perhaps the dealers should give us an 'extra' quart and say to check the level again in a few weeks.

After some reading in the manual, I found that it is normal for the Oil Level light to stay lit while driving. Once the level is correct, it should be parked at IDLE for a few minutes, and then it will clear itself and go off. Mine did precisely this.

Many cars are prone to do this with not just oil, but coolant, transmission fluid, etc. It's important to check them again after they have been serviced or drained (emptied). The only difference with this car and many previous cars I've owned is that the Oil Level HAS a sensor, and a 'sensitive one' at that.

This is NOT the Oil Pressure! If and when that light ever comes on, pull over and get a flat bed truck, and do NOT drive it. But the Oil Level being a bit low in a system that holds over 6 quarts is almost of zero concern. All these lights and indicators are just trying to warn us of any POTENTIAL problem, and my opinion is that some of them are maybe just a bit too sensitive.
 
#26 ·
A while back I did my own oil change (3rd one for the car, other two at dealer), and noticed the car took well more than 7 quarts to hit the full mark on the dipstick, and this was after refilling per the manual (6.7 qts for the 3.6), running then engine for a minute, then letting it cool for 5 minutes to allow the oil to drain back into the pan. It seems if a mechanic were to simply follow the spec's without double-checking, it'd be easy to underfill the engine.
 
#27 ·
Low oil level light

I just did my first oil change on my 2011 Outback 2.5 at 3,000 miles using synthetic oil. I turned the key on when the oil was draining to record the mileage. After the oil change, the low oil level light would not go off. I hope it goes off soon. The oil level is fine and no leaks. I love this car. Beautifully built and easy to work on. We traded in a 02 Volvo XC70 for this car. What a maintenance nightmare that car was. Horrible design.
 
#28 ·
I just did my first oil change on my 2011 Outback 2.5 at 3,000 miles using synthetic oil. I turned the key on when the oil was draining to record the mileage. After the oil change, the low oil level light would not go off. I hope it goes off soon. The oil level is fine and no leaks. I love this car. Beautifully built and easy to work on. We traded in a 02 Volvo XC70 for this car. What a maintenance nightmare that car was. Horrible design.
Wait till you change a low beam headlight.. That ended my thoughts of easy maintenance pretty fast... My light went out after about 5 minutes on the road. Never came on since the first oil change.
 
#29 ·
I believe there are two different lights for the oil
-Pressure
-Level
Some one correct me if I am wrong (I'm sure you will :) ) but I thought so. And yes I am too lazy to go look in the book :p
Anyway, on some cars the pressure light is a latching diagnostic. Can happen during the delay while a new filter fills up with oil after a change.
Just a thought.
 
#34 ·
Thought I would add my 2 cents..

Evil is correct; two lights pressure and level
WHEN the oil level lights comes on, it can be reset by the SMIII (Subaru scan tool) or a warm-up cycle n the engine after the oil level has been corrected.
The most common cause for the light to come on is turning/leaving the key on when you have drained the oil (guilty).
 
#30 ·
Just changed the oil in my 2.5L Outback for the first time at 3000 miles. I turned the ignition switch to the on position after the oil was drained and filter changed so that I could disengage the parking brake to let the car roll off the lift ramps. Don't know if I needed to do that but I did. Anyway, the oil level light stayed on after I completed the oil change. I checked the oil level several times, then read the manual again. The comment about the light not going out until after the engine is completely warmed up and idling prompted me to take the car for a 3 mile drive. The light was still on after I did that. I then turned off the engine then started it again and let it idle. In about 20 seconds the light went out.

This certainly is annoying, but nothing compared to my 2007 Outback where the cruise control would not function every time the gas cap lost its seal, and it did it often. I had to carry a 10 mm wrench with me and disconnect the battery ground strap for a couple of minutes so that whatever chip was responsible would reset itself. I'm happy to see that Subaru listened to my several rants about this and finally changed the gas cap design (my 2002 WRX had the same problem, but the cruise control still functioned, and the light would go out by itself in a couple of days). It seems no car is perfect, and electronic related issues seem to be a way of life.

So far this is the only issue with the car, which I absolutely love. By far the best build and material quality of the 3 Subarus I've owned.
 
#38 ·
This happened to me today

This is the first time this has happened to me. The only thing I did different was turn the electrical system on while the oil pan was empty so I could write down the mileage. Once the computer detected the low level I guess it didn't bother to recheck until after miles of driving, at which point the warning cleared. It must be something with the software; all software seems to be riddled with bugs.

I was going to attempt the fuse trick mentioned by some other posters, but didn't see any sign of a slot that was missing a fuse.
 
#39 ·
My 2012 OB with 5K miles has never had an oil change, or oil added, but has had this oil level light problem for about 4K miles. When I pull it out of garage, and turn it around, the light is not on. However, when I start it the second time and actually leave, it stays on. Sometimes it goes off while driving, sometimes a bumpy stretch of road seems to cause it to go out. Usually, at startup from the first destination, it will stay off.

I'm not worried about it, except that it does exclude the possibility of using the level warning light as an information source.