450h+ charging issue?
Last graphs from public charge point were always showing an high peak at each start of session, with low temperature below 50°F.
My 450h+ is a MY2022 and was Waiting for DC to DC free recall campaign actuation.
Domestic charge was always OK, with not any issue.
After Recall applied, i can recharge at public charge poi ts, but EV range is always from 75 to 78 km.
So well below the former 83 to 85 km.
The high peak at start is again present.
I hope that overnight domestic recharging sessions will brings back the EV range up to 90 to 93 km as former outcome during Summer period.
Public charge point Type 2: Charging session graph with high Power peak at start.
1) new Level 2 charger over the old Level 1 charger, new app with more detail of status
2) with the old charger, I was waiting until about 8pm to start charging. but since the new charger is faster, I was plugging in right away with plans to unplug before going to sleep
3) weather is getting warmer
I'm going to try the following for a bit and see what happens:
1) plug in when I get home
2) don't let the chargepoint start charging until later (9 or 10pm)
curious if that's enough time to let the car/battery cool off or if still with the fast charging, there will need to be a delayed start.
1) new Level 2 charger over the old Level 1 charger, new app with more detail of status
2) with the old charger, I was waiting until about 8pm to start charging. but since the new charger is faster, I was plugging in right away with plans to unplug before going to sleep
3) weather is getting warmer
I'm going to try the following for a bit and see what happens:
1) plug in when I get home
2) don't let the chargepoint start charging until later (9 or 10pm)
curious if that's enough time to let the car/battery cool off or if still with the fast charging, there will need to be a delayed start.
I don't see this as an issue. The car is doing something - could be cooling down the battery or heating it up or pausing to ensure destination time is as close as possible. This chart is with the new DC-DC.
Celebrating Lexus & Toyota from Around the Globe
Update: Here is the setting about the Battery Cooling. Haven’t tested it with it turned off yet, but I suspect this is what is monitoring the battery’s temperature and stopping it (cooling it down) during charging if it detects it getting too hot. I recommend leaving it on though.
Last edited by GHN1013; Aug 5, 2025 at 08:52 PM.
As background, I am only using the supplied Lexus L1 charger, with charging scheduled to begin at 12am (I am on a tiered PG&E rate plan with the lowest kWh between 12am-3pm). Prior to installing a second app, charging began as expected at 12am and continued without interruption until the vehicle reached full charged sometime that morning. However, after I began using the MCE app (in order to take advantage of a $50 signup bonus and ongoing $10 per month bonuses for "low carbon" events), while the car starts at 12am, it will stop and start charging several times over the course of the early morning until it reaches full charge. The MCE app only allows setting a "ready by" time, so I chose 6am. Even though six hours is sometimes not enough time to reach full charge on L1, it seems to continue beyond 6am if needed.
My theory is that using a second app to control charging doesn't play nicely with the onboard settings. The MCE app recommends not setting a schedule with the onboard settings, but when I did that, the car would start charging shortly after plugging it in. But, at the same time, the Lexus app would show charging scheduled to begin at 1:20am, which seemed to contradict the start-charging-on-plug-in that was happening. I also tried changing the on-board settings to sync with "ready by" time in the MCE app, but the same 1:20am "start time" would appear in the Lexus app.
I don't think anyone mentioned if they had used the on-board settings to schedule a "ready by" or "start by" charge time, but perhaps playing around with the on-board scheduling setting might help?
Last edited by grezuki; Aug 6, 2025 at 08:31 AM.







