I, too, had the SC191 Gear Shift Lever Recall and the SA427 Improvement update late Sept. 2020 and have noticed a SIGNIFICANT decrease in range in my CPO 2016 Soul EV+. I've had no problems with the car or range prior to the update since I purchasing last summer.
Before the update the mileage range would consistently be 1-2 miles equivalent to my battery %. (91mi. range @ 92% charge) and my driving history would be at 4.0 kWh. After the update my range has gone down to 52 mi. @ 100% charge!!! I have also tried "Recalibration" by charging to 100% after driving it down to 4% -- no improvement at all in the range. My driving habits have not changed since the update so I'm not sure what's going on.
I did get the CAR SCANNER app and a Veepak OBD diagnostic but for some reason the SOH/SOC or anything battery related does not show up. ? Not sure how to add that measurement on the app. Do I need to be driving the car?? Maybe someone can help? I don't have an Android so I can't use SoulSpy
I also need to recheck that the heater also isn't functioning normally -- no hot air. Will take it in to the dealer next week. Now I have extreme range anxiety on my commute. Even if I start the day with 100% I arrive home with 9 miles @ 20%. Previously I would only use about 45-50% of my battery - freeway driving 65+mph.
Somehow this BMS "upgrade" either has messed something up or maybe it has revealed the "true" range of my car ? Just wanted to share my similar experience and see if anyone else has advice. Thanks for reading & good luck to others out there.
P.S. "This bulletin provides the procedure to upgrade the Battery Management System (BMS) and Full Auto Temperature Control (FATC) software on some 2016-2017MY Soul (PS EV) vehicles, produced from May 21, 2015 through August 29, 2017, in order to improve air conditioning operation while the battery is charging." https://static.nhtsa.gov/odi/tsbs/2020/ ... 8-0001.pdf
Bearcat wrote:I have a 2016 Kia Soul EV+ and recently received the NTHSB gear shift lever safety recall notice in the mail. I took the car into the dealer for the fix and they did two software updates, one for the gear shift lever (SC191 Gear Shift Lvr - EPB Logic Update) and another one for a logic improvement (SA427 PSEV BMS/FATC Logic Improvement). I haven't done my homework yet to see the details of what these updates involve.
After getting the updates, I immediately noticed that the range calculations are different. The actual range of my vehicle with my typical driving conditions/style is currently a little less than 100 miles with the 27 kw battery fully charged. Pre-update, the Range meter would typically tell me that I had about 96-98 miles of range at full charge. However, the Average Energy Consumption meter consistently told me that I was getting ~5.5 miles/kwh, which, if true, should give me an indicated range more like 150 miles. Something didn't make sense.
Post-update, the meter shows that I am still averaging ~5.5 miles/kwh but the indicated range is now 140 miles at full charge. However, as far as I can tell, I still have an actual range of ~100 miles. So, I believe the range calculation is now improved even if it gives unrealistic results. So, this says to me that the Average Energy Consumption meter gives bad results, i.e. I'm not really averaging 5.5 miles/kwh. I will have to figure out how to test these calculations to see if they’re valid.
Bottom line – the updates have resulted in my having a wildly unrealistic range displayed in the instrument panel. I will have to depend on the percent battery charge numbers to estimate how much range I have left. I have also noticed some slightly different behavior in the EPB system but this behavior seems consistent with the intent of the safety recall.
I would be interested in others' experience with the updates and with their Average Energy Consumption experience for their vehicles.