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Old 12-19-2010, 06:28 PM   #1
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Change oil light reset

Just completed my first oil change at 2995 miles. The change oil light still is on at start up. Is there a reset procedure for this?

Thanks.

Bob

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Old 12-19-2010, 06:31 PM   #2
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Yes. It's right there in your owners manual.

Turn the key to the accessory position. (as far as you can without starting) All of your "idiot" lights on the dash should be lit. Fully depress the gas pedal 3 times. Then turn the key off.

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Old 12-19-2010, 06:35 PM   #3
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Thanks
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Old 12-19-2010, 10:52 PM   #4
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Do me a favor though and check your dipstick to confirm they really changed your oil. The oil light is duty based--not time or mileage based--so it could still be on because the oil still needs to be changed.
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Old 12-19-2010, 10:58 PM   #5
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It won't go off by itself after the oil is changed.
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Old 12-19-2010, 11:00 PM   #6
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Quote:
Originally Posted by daggo66
It won't go off by itself after the oil is changed.
Really? Unless Tire King reset it, mine did. Putting down iPhone to go look at manual . . . .
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Old 12-19-2010, 11:14 PM   #7
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My manual tells me that Daggo is correct, which means that my oil change folks must have actually performed the reset procedure after changing my oil. Certainly indicates they know what they're doing--and that your guys are at best sloppy. Please do check the dipstick.
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Old 12-19-2010, 11:14 PM   #8
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Quote:
Originally Posted by MTH View Post
...The oil light is duty based--not time or mileage based--...

Duty based means it's based on a duty cycle (algorithm), not sensors.

From the Factory Service Manual:
"The change oil indicator gives an indication to the vehicle operator when a duty-cycle algorithm contained within the software of the Powertrain Control Module (PCM) determines that a recommended oil change interval has been attained."

Since there aren't any sensors you need to "reset" the algorithm every time you change your oil - even if the Change Oil indicator isn't on yet.
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Old 12-19-2010, 11:16 PM   #9
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Quote:
Originally Posted by MTH View Post
My manual tells me that Daggo is correct, which means that my oil change folks must have actually performed the reset procedure after changing my oil. Certainly indicates they know what they're doing--and that your guys are at best sloppy. Please do check the dipstick.
I think the OP did his own oil change.
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Old 12-19-2010, 11:47 PM   #10
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Quote:
Originally Posted by joe002
Duty based means it's based on a duty cycle (algorithm), not sensors.
I did not know that, but I'm glad I do now.

Quote:
Originally Posted by daggo66
I think the OP did his own oil change.
After rereading the original post, I think you're probably right. It would certainly be sloppy for a company who's job it is to change oil not to be familiar with resetting these lights, but that wouldn't be the case for someone working at home.
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Old 12-19-2010, 11:53 PM   #11
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Quote:
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I did not know that, but I'm glad I do now...
You would think with all of the computerized doodads they put in the JK they would have some fancy sensors, but nope. Maybe the new engines in 2012 will have them?
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Old 12-21-2010, 01:36 PM   #12
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Thanks for all the input. And yes I did the oil change myself. Merry Christmas all.

Bob
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Old 12-21-2010, 03:02 PM   #13
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Quote:
Originally Posted by joe002

You would think with all of the computerized doodads they put in the JK they would have some fancy sensors, but nope. Maybe the new engines in 2012 will have them?
You don't even have to change the oil in the 2012
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Old 12-21-2010, 08:42 PM   #14
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You don't even have to change the oil in the 2012
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Old 12-21-2010, 09:00 PM   #15
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You don't even have to change the oil in the 2012
Thats right. The jesus engine doesn't even need water for cooling. It runs on water man.................it runs on water.
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Old 02-26-2013, 04:11 PM   #16
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Quote:
Originally Posted by MTH View Post
Do me a favor though and check your dipstick to confirm they really changed your oil. The oil light is duty based--not time or mileage based--so it could still be on because the oil still needs to be changed.
actually the light is mileage based,comes on every 5,000
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Old 02-26-2013, 04:15 PM   #17
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Quote:
Originally Posted by jkfannatic

actually the light is mileage based,comes on every 5,000
This is an old thread . . .

But in any event, I'm not persuaded.

At least not for the 3.8, and I wouldn't expect it to go backwards to less sophisticated for the 3.6.

The manual describes the light as "duty based," and anecdotal reports here show lights coming on anywhere from 3500 to 6000 miles.

Perhaps your driving routine triggers it every 5000, but that doesn't necessarily mean that's the trigger spot for everybody.
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Old 02-26-2013, 04:17 PM   #18
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i just had the light come on 200 miles after oil change,dealer says its mileage based.
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Old 02-26-2013, 04:23 PM   #19
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Quote:
Originally Posted by jkfannatic
i just had the light come on 200 miles after oil change,dealer says its mileage based.
This is the same dealer who forgot to reset the computer after performing the change, right?

Dealers are routinely wrong. The oil light mileage based, the soft top must be completely removed or it will tear off on the highway, non-mopar lifts will "void" you warranty, "we've never heard of death wobble," 4.10 gears are standard in all Rubicons, and on and on and on.

All of those statements came directly from dealers, and they're all wrong.
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Old 02-26-2013, 04:25 PM   #20
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Mine appears to be set to go off at 2500 mile increments. So, knowing how to reset it is vital to me as I have reset it and awaiting on its second time to go off to be of any value to me. When it goes off again, I will be changing the oil. At some point I might go and insist the dealer change it so it doesn't go off until it is nearer to 5-6K. But for now its just easy enough to reset it and go again.
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Old 02-26-2013, 04:30 PM   #21
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Quote:
Originally Posted by cphilip
Mine appears to be set to go off at 2500 mile increments. So, knowing how to reset it is vital to me as I have reset it and awaiting on its second time to go off to be of any value to me. When it goes off again, I will be changing the oil. At some point I might go and insist the dealer change it so it doesn't go off until it is nearer to 5-6K. But for now its just easy enough to reset it and go again.
Again, it's not based exclusively on mileage, so that's probably not an option.

If you stop-and-go a lot, sit in traffic, turn the jeep on and off a lot, and/or put on very few miles over the course of six months, it will go off much sooner than for open highway commuters who don't hit any traffic and put on a lot of miles between start/stops and on/offs.

If that doesn't describe you, then you might have some other sort of computer issue.
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Old 02-26-2013, 04:44 PM   #22
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mine is over 6500 miles and still no light and I have changed oil 2X's but did not reset the minder. I am guessing it uses about the same technology as what Honda and other manufactures use and is based off factors as stated above. Both my Honda (09 accord 09 civic) have consistently gone off around 7000-8000 miles so I would be that is what my wrangler will do based on normal driving patterns.
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Old 02-26-2013, 05:47 PM   #23
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I'm at 8008 and no light yet. I've changed the oil already but didn't reset the system. Curious when it will actually come on.
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Old 02-26-2013, 06:18 PM   #24
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Mine hasn't gone off at 7600 miles so far.
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Old 02-26-2013, 06:20 PM   #25
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Pretty sure the last few posts in this thread alone establish that the light isn't based exclusively on mileage.
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Old 02-26-2013, 06:41 PM   #26
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Proves to me that the whole system should be ignored and not trusted at all and actual mileage and your own judgment of your use paid attention too.

There are several past threads here where members report dealers being able to set certain parameters within this PCM controlled "algorithm". They appear to indicate that there is some programing that can shift them to a gross area of mileage.
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Old 02-26-2013, 09:07 PM   #27
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Comparing each others point at which the warning came on or didn't is totally worthless. It's duty cycle based which means it depends on that individual vehicle. How many times the engine is started, how long between intervals, etc. Since everyone drives differently, comparisons are worthless. Bringing up this old thread was certainly interesting to see how far MTH has advanced.
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Old 02-26-2013, 10:00 PM   #28
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Originally Posted by daggo66
Bringing up this old thread was certainly interesting to see how far MTH has advanced.
Shhh . . . I was born knowing all this JK crap--I swear!!
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Old 02-26-2013, 10:28 PM   #29
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Mine goes off every 3500 miles

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