Hesitation/Stumble when first accelerating from a stop
#31
Rookie
Thread Starter
This just happened to me today after letting my car sit for a few days with the high temperatures (I’m in Florida). Had a very scary situation where I was taking an unprotected left and the car just stumbled like it was stalling or slipped into the wrong gear. I’m thinking about taking mine to the dealership to have them look, but I’m not very hopeful that they will find something. Did you end up taking yours back to the dealer? It’s supposed to be cooler temperatures the next few days.
John
#32
95% sure it will be a software fix.
Thats why the dealership can't find anything wrong or fix the problem.
The solution will have to come from Lexus.
Even the best diagnostic shop can't or wont rewrite the software, only Lexus.
Thats why the dealership can't find anything wrong or fix the problem.
The solution will have to come from Lexus.
Even the best diagnostic shop can't or wont rewrite the software, only Lexus.
#33
Rookie
Thread Starter
#34
#35
Lexus Test Driver
I had the *exact* same thing happen to me in my 2021 ES300h (bought new, less than 10k miles at the time) happen on an unprotected left turn, after the car was sitting. Left turn signal on, traffic clear, I begin to pull out, car creeps forward as I let off the brake, then i step on the gas pedal and nothing. My head lurches forward as I anticipate acceleration but the car doesn't respond at all. After 2-3 seconds (felt like forever) the car seems to "wake up." I posted about it a while ago when it happened.
It's almost as if the computer fell asleep, timed out, momentarily. It happened on one other occasion. I emailed my dealer about it asking for an appointment and they never responded (they had responded to other emails before). I sold the car and never determined what it is or had it fixed.
It's almost as if the computer fell asleep, timed out, momentarily. It happened on one other occasion. I emailed my dealer about it asking for an appointment and they never responded (they had responded to other emails before). I sold the car and never determined what it is or had it fixed.
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