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post #1 of 7 Old 09-30-2018, 04:18 PM Thread Starter
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ETC warning

Over the last couple of months I've noticed when the engine is cold on my 2016 Latitude that when accelerating the RPMs will drop briefly for a second then go back to its previous RPM. However I never got any warning lights, except for one time a couple of months ago the engine dropped RPMs altogether and the ETC light flashed for a second.

Since it was a couple of months ago, I thought it was maybe a fluke.

However my battery was dying a few days ago so I had it replaced with a new battery (from our Jeep dealership, not a 3rd party battery). Since then the ETC light has come on four times in the last 2 days. At first I thought it was because I was really low on gas. But I filled it up as soon as I got it back from the dealership, and it happened twice the next day.

Any idea what can be causing this? Also would this be covered under a powertrain warranty? I'm trying to make an appointment with our dealership that I bought it from that has a 2yr-100K mile powertrain warranty, but it's 60 miles away.

2016 Jeep Compass Latitude - 2.0L, CVT, Deep Cherry Red
My first Jeep, so please be kind.

Last edited by scarfman4; 09-30-2018 at 04:24 PM.
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post #2 of 7 Old 10-02-2018, 07:20 PM
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Originally Posted by scarfman4 View Post
Over the last couple of months I've noticed when the engine is cold on my 2016 Latitude that when accelerating the RPMs will drop briefly for a second then go back to its previous RPM. However I never got any warning lights, except for one time a couple of months ago the engine dropped RPMs altogether and the ETC light flashed for a second.

Since it was a couple of months ago, I thought it was maybe a fluke.

However my battery was dying a few days ago so I had it replaced with a new battery (from our Jeep dealership, not a 3rd party battery). Since then the ETC light has come on four times in the last 2 days. At first I thought it was because I was really low on gas. But I filled it up as soon as I got it back from the dealership, and it happened twice the next day.

Any idea what can be causing this? Also would this be covered under a powertrain warranty? I'm trying to make an appointment with our dealership that I bought it from that has a 2yr-100K mile powertrain warranty, but it's 60 miles away.
Hi scarfman4,
We understand how this would be concerning. If you are still planning on having your dealer look into this, you can also send us a private message so we can provide an extra layer of assistance to you while your Jeep is being serviced.
Lydia
Jeep Social Care Specialist
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post #3 of 7 Old 10-10-2018, 03:20 AM Thread Starter
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Just an update. I took it to the dealership I bought it from and told them about the ETC light coming on. They were able to retrieve a code that said the flap in the Throttle Body was getting stuck which was triggering the light. So they replaced it with a new throttle body from Mopar.

So I will keep an eye out for the light again.

However it didnít solve the problem of the RPMs dropping for a second when the engine was cold. The rep at the dealership service Dept didnít know off hand what was causing it either.

Anyone else run into this? Itís so far not dangerous in that it acts like a regular transmission might do when shifting gears. Itís just annoying.
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post #4 of 7 Old 10-10-2018, 06:08 PM
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However it didnít solve the problem of the RPMs dropping for a second when the engine was cold. The rep at the dealership service Dept didnít know off hand what was causing it either.

Anyone else run into this? Itís so far not dangerous in that it acts like a regular transmission might do when shifting gears. Itís just annoying.
This is a quote from the page 154 of the user manual;

Quote:
The torque converter clutch will not engage
until the engine and/or transmission is warm
(usually after 1 to 3 miles [2 to 5 km] of
driving). Because the engine speed is higher
when the torque converter clutch is not engaged,
it may seem as if the transmission is
not shifting properly when the vehicle is cold.
This is normal. The torque converter clutch
will function normally once the powertrain is
sufficiently warm.
Is this what you experience? Without the torque converter, RPM will drop between gear shifts (it would feel almost like the transmission slipping) as that is the only way of safely matching "gear speeds".
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post #5 of 7 Old 10-10-2018, 09:50 PM Thread Starter
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Does the CVT have a torque converter clutch? If so then it makes sense.
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post #6 of 7 Old 10-10-2018, 10:02 PM
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Does the CVT have a torque converter clutch? If so then it makes sense.
My response was based on 2nd gen, I think some CVTs have torque converters and others have wet clutches. I dont know which one 1st gen compass have.

A quick we search makes me think they have torque converters as it is offered for sale as a part.

https://www.autozone.com/drivetrain/...726476_0_92246
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post #7 of 7 Old 10-10-2018, 10:38 PM Thread Starter
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I found the same info in the owners manual of my 1st gen. It only lists this information under the Automatic section but not that I could find under the CVT section.

However I found this on motor.com:

ďOne significant difference to be aware of is whether or not a CVT that shows up at your shop uses a torque converter. This determines the strategy used when the vehicle is placed into gear as well as when it comes to a stop while in gear. In most cases, when a conventional torque converter is used, a CVT will remain in gear in a similar fashion to a conventional automatic transmission. The Nissan Murano RE0F09A (photo 2), Saturn VUE VT25E, Ford Five Hundred CFT30 and Dodge Caliber CVT2 CVTs are just a few examples of this combination of a CVT and a torque converter.ď

The CVT2 for the Caliber is the same as the ones in the 1st Gen Compass. So Iím assuming that it does.
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