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Hi,

I just got my new 2018 Pachy Limited on 3/30/19. I have noticed the engine kick on at times I would not expect it to on multiple occasions. For example, today I was driving to work, stopped at a stoplight with about 50% battery remaining, outside temp was in the 60s and climate was off and the engine kicks on while waiting at the red light.

Is this normal? Is anyone else experiencing this?

Thanks in advance!
 

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Yes I have similar experience with my 2018 pacHy. The engine would usually shut off within a min. I don't have an explanation either, but I would chalk it to regularly scheduled gas engine maintenance run to keep gas/oil fresh.
 

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We had just driven about 20 highway miles and had plenty of battery left when the engine decided to run for about a minute. Like you, I couldn't think of any reason it would do that.
 

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You would think it would give a message if it was putting the system into refresh mode. I just noticed this behavior yesterday. It was in the 70s here and my wife was driving the car with around 30% charge remaining on the HV battery. We were in a parking lot looking for a parking space next to the free EVSE. The ICE kicked on for no apparent reason and stayed on until the van was parked and shut down (maybe a minute or less). After about an hour of charging we returned to the van and drove it home completely on electric without the ICE restarting.
 

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Discussion Starter #7
In D mode.

Glad to hear it is not just me! Still can't say I like it.....I have heard about refresh mode but I thought I read that a message should display on the dash telling you that is what it is doing too. I have used about 1/8 of the tank the car came with from the dealer but it was only filled up 3 weeks ago.
 

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Hi,

I just got my new 2018 Pachy Limited on 3/30/19. I have noticed the engine kick on at times I would not expect it to on multiple occasions. For example, today I was driving to work, stopped at a stoplight with about 50% battery remaining, outside temp was in the 60s and climate was off and the engine kicks on while waiting at the red light.

Is this normal? Is anyone else experiencing this?

Thanks in advance!
Yes I have similar experience with my 2018 pacHy. The engine would usually shut off within a min. I don't have an explanation either, but I would chalk it to regularly scheduled gas engine maintenance run to keep gas/oil fresh.
Hi curlystew and lettcco,
We understand why this may be concerning. We suggest having your dealer inspect this concern if you have not done so already. We are also available via private message if you would like any additional assistance during that process.
Lydia
Chrysler Social Care Specialist
 

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I understand the refresh mode but don't understand how it is implemented. I once saw a message that it was in refresh but it only displayed for a short time. Is the refresh programed run based on the time since the last refresh, or is it the time since the engine last ran? Also, how long should it be between refreshes?
 

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I understand the refresh mode but don't understand how it is implemented. I once saw a message that it was in refresh but it only displayed for a short time. Is the refresh programed run based on the time since the last refresh, or is it the time since the engine last ran? Also, how long should it be between refreshes?
According to what has been discussed on this forum and what is in the manual, refresh mode can activate for at least three different reasons: 1) Stale fuel (engine hasn’t run and consumed fuel in awhile). 2) Water condensation in the oil. Every now & then the engine needs to get to a certain temperature (oil) and stay there for awhile to evaporate the condensation. 3) Spark plug fouling. Supposedly if it is perceived that the engine has run rich for enough time it may decided to run in refresh mode long enough to burn off the residue on the plugs.

How it calculates any of these things is somewhat of a mystery.
 

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Try pressing the arrow down on the left side of the steering wheel to change the informational display to “7: messages” and see what is presented when this happens.

Refresh causes a message here that refresh is presently occurring

Also quick motion of the accelerator will cause a engine on condition. It happens for me sometimes rolling up into a driveway slowly and pumping the throttle at the hump.

I’ve gotten used to how to avoid it now
 

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This is pretty cool; the engine starts up for no known reason.

Now, if Chrysler would take the problem many of us have with the engine shutting down for no known reason, and merge it with those vans where the engine starts up for no known reason, a lot of owners would be very happy.
 

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I'm pretty sure this is normal behavior and not the refresh mode or a glitch. Based on my driving experience the van will stay in pure electric mode until you get to zero miles UNLESS you have triggered the gas engine at least once by accelerating hard (like when you are trying to get up to speed on a highway on-ramp). Once you've triggered the gas engine once on a drive for any reason, it continues to opportunistically add to the charge for the rest of the drive, even if the electric range isn't down to zero. In my experience, regenerative braking at a stop sign almost always kicks in the gas engine to add to the charge once you're in this mode. There is a gauge display you can choose that shows the electric charging/discharging in a light blue line and the gas engine power in a dark blue line: when you're in this mode, you can see this playing out. When I have accidentally triggered the gas engine by accelerating too sharply, I will sometimes turn the car off and on at a stoplight and then I'm back in pure electric mode until I get to zero miles or accelerate too rapidly.

tl;dr: This is normal. To avoid this behavior, accelerate more mildly to stay in the battery-only mode.
 

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I'm pretty sure this is normal behavior and not the refresh mode or a glitch. Based on my driving experience the van will stay in pure electric mode until you get to zero miles UNLESS you have triggered the gas engine at least once by accelerating hard (like when you are trying to get up to speed on a highway on-ramp). Once you've triggered the gas engine once on a drive for any reason, it continues to opportunistically add to the charge for the rest of the drive, even if the electric range isn't down to zero. In my experience, regenerative braking at a stop sign almost always kicks in the gas engine to add to the charge once you're in this mode. There is a gauge display you can choose that shows the electric charging/discharging in a light blue line and the gas engine power in a dark blue line: when you're in this mode, you can see this playing out. When I have accidentally triggered the gas engine by accelerating too sharply, I will sometimes turn the car off and on at a stoplight and then I'm back in pure electric mode until I get to zero miles or accelerate too rapidly.

tl;dr: This is normal. To avoid this behavior, accelerate more mildly to stay in the battery-only mode.
Very interesting observation! I wonder what Chrysler’s reasoning is on this behavior.
 

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Gas engines need to run. Daily. They need to get hot/to operating temperature - to burn off residue that can cause problems.I try and let all my ICE cars get to temperature so as not to leave raw/incomplete combustion around where it shouldn't be. Oil needs to be in the head at all times - leaving it sit for long periods drains it of all oil to the pan and can cause premature wear.



If you want a hybrid system to run at peak, you have to let the engine do its thing.A hybrid is gas first, battery is really the backup system.


Thinking that the engine should not come on is reverse thinking.It should come on every day, even in summer, to maintain efficiency.
 

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Gas engines need to run. Daily. They need to get hot/to operating temperature - to burn off residue that can cause problems.I try and let all my ICE cars get to temperature so as not to leave raw/incomplete combustion around where it shouldn't be. Oil needs to be in the head at all times - leaving it sit for long periods drains it of all oil to the pan and can cause premature wear.



If you want a hybrid system to run at peak, you have to let the engine do its thing.A hybrid is gas first, battery is really the backup system.


Thinking that the engine should not come on is reverse thinking.It should come on every day, even in summer, to maintain efficiency.
No. Gas engines should be allowed to warm up to temperature once they are started, but there's no reason to start the engine every day unless your goal is to wear it out. Intentionally forcing the engine to start every day is much worse for the engine than keeping it from running.

Sent from my SM-G960U1 using Tapatalk
 

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Very interesting observation! I wonder what Chrysler’s reasoning is on this behavior.
I read somewhere that once the engine has been on once in a trip it wants to keep the cat converter above a minimum temperature for emissions standards.
 

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I read somewhere that once the engine has been on once in a trip it wants to keep the cat converter above a minimum temperature for emissions standards.
Hmmmm. That doesn’t make a lot of sense to me: Let’s make more emissions so that we can be sure that we’re properly controlling the emissions that we make.
 

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Gas engines need to run. Daily. They need to get hot/to operating temperature - to burn off residue that can cause problems.I try and let all my ICE cars get to temperature so as not to leave raw/incomplete combustion around where it shouldn't be. Oil needs to be in the head at all times - leaving it sit for long periods drains it of all oil to the pan and can cause premature wear.



If you want a hybrid system to run at peak, you have to let the engine do its thing.A hybrid is gas first, battery is really the backup system.


Thinking that the engine should not come on is reverse thinking.It should come on every day, even in summer, to maintain efficiency.
They need to get hot to burn off residue from what? If you’re not running the engine often then there isn’t much residue to be burning off. I can understand getting a vehicle “up to temperature” but once that has been accomplished, I wouldn’t think there is a need to start it up again.

And in my mind our PHEV Chrysler Pacificas are battery first and then the ICE is the backup. In fact, in most cases the vehicle is running solely from energy generated by the electric motor(s) and the engine simply keeps the battery charged and powers the motor.

If the engine should come on at least once every day then why didn’t Chrysler design it to do that? I have driven my van for a stretch of many days without the ICE ever starting.

I’m not saying it’s wrong that Chrysler is causing the engine to run at certain times which may be confusing or difficult for us to understand. But one of the objectives of the plug-in hybrid is to have the gas engine run at the least amount as possible.
 
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