Two problems related to car stall have been reported for the 2018 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Toyota Highlander based on all problems reported for the 2018 Highlander.
I own a 2018 Toyota Highlander, me and my family including my 4 year old son were taking a drive up to nevada city. We live in California and when we got on the road and tried to come to a stop on the highway and the steering wheel and brakes started to shake. We decided to pull over and as we pulled over the car stalled, we put the car in park and tried to turn it on with no luck left it off for a couple minutes and still no luck an error came on that said low breaking power. We had received a recall notice so we called Toyota and they stated they would need to charge us about 200 dollars to check the car. Took the car in and they decided to keep out car until there is a resolution for the recall which they said could take 3 to 4 months. Just unethical for Toyota to charge us for a problem that is completely out of our control not only that but 4 months to fix a recall error is just ridiculous. Now we're terrified to drive the car especially when our 4 year old son in the car. Contacted Toyota manufacturer and they were really unwilling to help gave us a run around and we didn't come to a resolution about the problem. They didn't own up to the problem and we were left with more unanswered questions.
After vehicle has warmed up engine rpm speed drops to near 500 when brake engaged at stop lights and vehicle idles rough and attempts to stall. Shifting to neutral brings rpm speed back up and idles smooth again. Problem occurs daily over last two months. Vehicle is near new, 1750 miles. Auto stop start feature is not engaged. Taken to dealer who advised no problem found. Returning to dealer again for another try and hopefully better results.