I used to be a fan of the in car nav. In 2021, I traveled over 600 miles each way from KC to Longmont, CO, and the nav was spot on. My car is a 2018 Model 3 Dual Motor Long range with 18” wheels w/out aeros. My average speed was 84mph in both directions.
Fast forward to last weekend when I was making the same KC to CO trip again. I was charging in Russell, KS and after ~15min, it said I had enough charge to make it to Colby, KS. I thought the charge was oddly quick, and the arrival SOC was 26%. That is plenty for me as I try to go ‘Out of Spec’ style and arrive with a 10% SOC to maximize charging. About 1/2hr west of Hays, KS, the nav tried to reroute me back to Hays SC. Being about 50mi outside of Colby, I thought I’d try and make it, so I forged ahead. I slowed down to 65, then 55, then 52mph. That was extremely dangerous as the speed limit is 75mph. Fortunately, it was during the day and my hazards were on and I hugged the shoulder. After 1hr of driving like this with no ac in 85deg weather, I rolled in to Colby with 1mi remaining. It is not a good feeling when your miles of range remaining drops faster than your distance to destination!
Several times, both the in car nav and my phone app would say I had enough charge to get to my destination. However, after clicking ok, the arrival SOC read as -8%. Other times the nav wanted me to charge to 100% and skip multiple SC’s. I of course cancelled that.
I did a reset while in CO but that did not help, and weather wise I do not believe it was significantly different than 2Yrs ago. When I overrode the nav planner, my arrival SOC seemed to be pretty accurate.
Fast forward to last weekend when I was making the same KC to CO trip again. I was charging in Russell, KS and after ~15min, it said I had enough charge to make it to Colby, KS. I thought the charge was oddly quick, and the arrival SOC was 26%. That is plenty for me as I try to go ‘Out of Spec’ style and arrive with a 10% SOC to maximize charging. About 1/2hr west of Hays, KS, the nav tried to reroute me back to Hays SC. Being about 50mi outside of Colby, I thought I’d try and make it, so I forged ahead. I slowed down to 65, then 55, then 52mph. That was extremely dangerous as the speed limit is 75mph. Fortunately, it was during the day and my hazards were on and I hugged the shoulder. After 1hr of driving like this with no ac in 85deg weather, I rolled in to Colby with 1mi remaining. It is not a good feeling when your miles of range remaining drops faster than your distance to destination!
Several times, both the in car nav and my phone app would say I had enough charge to get to my destination. However, after clicking ok, the arrival SOC read as -8%. Other times the nav wanted me to charge to 100% and skip multiple SC’s. I of course cancelled that.
I did a reset while in CO but that did not help, and weather wise I do not believe it was significantly different than 2Yrs ago. When I overrode the nav planner, my arrival SOC seemed to be pretty accurate.