Outlander PHEV Sub-Zero Operation Question

[PHEV07]

I am curious how you got a response from Mitsubishi. I have been trying and can't get anyone in USA to respond, I left email requests on their web site and tried calling their main line. This has been discouraging as I have had Mitsubishi products for over 20 years and they were all fantastic vehicles, all reliable and some living long ( more than 240K miles) lives.
I wonder what happens when the PHEV is plugged in outside in -30C ( -22F) temps? Could the trickle charge, assuming it is fully charged, be enough to raise the battery temperature?

I cannot comment on Mitsubishi Corporation responding to emails Phone calls or letter but can comment on the Battery Temperature increasing whole trickle charging.

Simple answer is NO.

We are presently getting temperatures of between -5 to -9'C and I have been checking the Battery Terature on the car Screen and when I compare tge Battery Terature prior to charging and 3/4 of full charge on Level 2, the Battery Temperature gauge only increase a small amount.

When driving and Heat Pump on, tgs Vattery Temperature does not increase at all.

I will try to post some photos tge next time I place car on charge.

Tge software upgrade will do nothing to allow warm up thd Battery.

The 2023 to 2025 PHEV may fail to start when Temperatures reach -30'C and lower because they do not have an Interior Main Battery Resistive Heater.

 

[PHEV07]

Prior to starting car this afternoon. Drove for 20 Minutes, air at outlet was 30'C interior heat reached 14'C but Battery Temp did not change.

Tonight I will Charge Battery and take photo of Battery Temp at the end of Charging.

 

[Grandad]

Hi, anyone tested and can verify if the software update works? I know it's a little bit colder now. I'm planning to buy a PHEV but thinking twice because of the no start issue during cold weather -30 or lower.

Don't do it! A quick search on "Mitsubishi battery class action" will provide details but once you hit the -30's youll be going to sleep wondering if you should book a cab to get to work. The software enchancement does not add heat - it simply slows the cooling rate but Mitsu itself says that left plugged in with the software updated for 10 hours at -30C the vehicle can't be relied on to start.

I wish somebody had clued me in before I dropped a bundle on a vehicle that is unfit for purpose where it is sold.

 

[Grandad]

I cannot comment on Mitsubishi Corporation responding to emails Phone calls or letter but can comment on the Battery Temperature increasing whole trickle charging.

Simple answer is NO.

We are presently getting temperatures of between -5 to -9'C and I have been checking the Battery Terature on the car Screen and when I compare tge Battery Terature prior to charging and 3/4 of full charge on Level 2, the Battery Temperature gauge only increase a small amount.

When driving and Heat Pump on, tgs Vattery Temperature does not increase at all.

I will try to post some photos tge next time I place car on charge.

Tge software upgrade will do nothing to allow warm up thd Battery.

The 2023 to 2025 PHEV may fail to start when Temperatures reach -30'C and lower because they do not have an Interior Main Battery Resistive Heater.

Mostly correct on the cold start. The trigger point for the battery to lock out is ~ -25C (battery temperature). Search "Mitsubishi battery class actyion" for details of the related class action claim and the experience of other owners.

I can verify that 3 separate attempts failed to get any engagement from Mitsu.

Watch out for "homebrew DIY fixes." Mitsubishi could seize on anything youy attemp as a fix to void your warranty. That's how they treat their customers.

Best of luck.

 

[tyleriv]

My experience to date with the updated PMU software.

Temperatures have been -21C to -6C over the last week. I've charged each night using the 120VAC charger and typically the charge is not complete. The traction battery should have been warmed by the charging function by the time I started my first drive. As an aside, when I picked up the car from servicing, the advisor noted the PMU was updated and that they had disabled battery cooling in one of the user settings. I'm not sure I heard that latter comment correctly.

1) My Battery driving distance seems to have dropped to about 45km/full charge down from about 70. Is this temperature or PMU related? I can't really comment on this change until ambient temperatures get back above 5C or so. I would typically achieve about 60+km/charge at these moderate temperatures and the ICE would never start in EV mode.

2) If I force EV mode on start up, it has occasionally started the ICE as well

3) Where the battery temperature was showing as left (lower temperature) of the quarter scale mark on the battery temperature display, it would refuse to enter EV mode with a message that the battery temperature was too low; it would always start the ICE.

4) When it was possible to switch to EV mode, the ICE would occasionally start, run for about 30 seconds then shut off. This is a new behaviour. In this situation, there was significant remaining charge showing for the battery and the battery temperature was past (right of) the quarter scale mark on the battery temperature display. You could tell when the ICE was going to be started by the action of the EV meter. The EV meter would dramatically react to any small request for power from the accelerator pedal and max out. When it maxed out, the ICE would start and the EV meter started to react normally. I did have the cabin heat on. Perhaps the cabin heat requests that the ICE start in order to support its function.

5) I'm now using substantially more fuel after the PMU update as the ICE is running a great deal more of the time. As an average, I would estimate that the fuel economy is at about 4-6 l/100km combined with using the battery. It is still much better than my non-hybrid vehicles. My EV/Fuel usage ratio is now about 45% down from my nominal 95+% in the past.

6) January to March of this year, I could prevent the ICE from starting except in situations of extreme cold where the battery was in reduced power mode. Now, with the PMU update, it seems the ICE can start at any time even when the battery is above its minimum temperature mode.

7) I've not experienced the PHEV System FAILURE message since the PMU update.

8) The Heat Pump is ineffective when the ambient temperature is lower than -10C. I suspect that this has nothing to do with the PMU update pe se, but I just wanted to note that observation. If you want a warm cabin, you have got to run the ICE.

Mitsubishi needs to retrofit a battery heater into these cars in order to meet the challenges of cold weather environments.