My guess is either ICS is failing and also causing a check engine light, OR your battery is dying, which can cause all sorts of dash errors.

ICS uses sensors to reduce accidents while parking according to this link. Based on this, it should be OK to drive to the dealership. Consider calling them before you do.

Toyota Announces the Accident Reduction Effects of Intelligent Clearance Sonar, a Safety Support Technology for Parking - Toyota USA Newsroom

Toyota Announces the Accident Reduction Effects of Intelligent Clearance Sonar, a Safety Support Technology for Parking

pressroom.toyota.com

 

If the battery hasn't been changed, I'd consider starting with installing a new battery and see if that clears up the problem. My 2018 LE's battery barely made it 4.5 years.

The power required to start a direct-injected engine is much greater than that required for older vehicles, so once the batteries start getting weak, they go fast.

 

Wouldn't the car have a starting problem if the battery was bad or going bad? We have 2 cars and only use one a week at a time. The battery is always on a tender charger while it sits for a week.

 

I have a 2018 and it was a few warning lights like this randomly coming on after the car had been sitting more than driving that clued me in it was the battery... lots of posts on similar experiences.

Replaced 5+ y/o battery with a new one, no issues since.

At the age of your battery, its not a bad idea to replace anyway... I'm not a real fan of just throwing parts at a problem but yours will be due anyway so its not really a waste

I've also taken the extra step - since I work at home and don't drive much these days - of installing a battery tender lead and keeping the car on the tender one day a week if its been sitting.

 

Mine gave little warning. The starter was just beginning to very slightly strain to start turning the crank enough that I thought it may be time to start looking for a new battery. Then all of a sudden it just wouldn't engage the starter at all.

 

Took battery tender off and was going to get new battery but ICS Malfunction warning and Check Engine Light both gone.

 

That probably means it's the battery. If so, the lights will probably be back on soon.

 

If they do come back on, I will get new battery. Thank You.

 

I guess the OP is looking forward to having a "day off" when the 5-year old battery fails, and she's forced to replace it at whatever price she's quoted (?). Maybe it will last 6 years, cutting the cost from {say} $30/year to $25/year. Whatever.... Even excellent free advice is too often valued at what it cost.

 

FYI, the existing battery in my 2018 Toyota is not the original. It was replaced in 2020 for whatever reason. I purchased the car in 2021 so I am not entirely convinced this battery is bad.

 

They can also be effected by water damage, or being bumped in a minor collision like a parking lot bump, or freezing, especially if there's moisture behind them. It could also be a damaged wiring harness. There are many reasons they'll throw an error code. And since you bought the car used you don't really know what the car's been through.

With all the wild weather we've been having across the nation, I see all these people on the news driving through flooded streets and I can't help but think about the havoc that's going to cause with all the electronics in these modern cars. Not necessarily immediately, but for sure down the road when things start to corrode.

 

Fortunately, here in Las Vegas we haven't felt the bad weather the rest of the nation has just some mild rain and snow in the mountains. I was fortunate to find the previous owner (lease) who gave me much of the service history of the car after I purchased it.

 

Your purge valve is open and your ECU software needs updated. Trust me. My 2018 camry has now done this 3 different times. 🙄