I have a 2021 Lexus LX570 with 225k miles. The car was fine one night and in the morning we went out and the suspension was all the way down and it had the Check 4-wheel AHC system error on the dashboard. No error codes found on the OBD scanner. I tried disconnecting the battery to reset but that didn't work. Looked at the reservoir in the rear passenger wheel well and it looks like it has fluid. Any suggestions before I have it towed 50 miles to the Lexus dealer? Is this worth fixing or should I have them swap out the air shocks given the age?

 

Wow, a tremendous amount of driving in a short amount of time.

 

You need an advance scanner to get suspension errors. It is likely caused by the pump. Have you ever changed fluid in the system?

 

Thanks for the replies! My mistake the model year is 2011 not 2021! That would be crazy mileage. I had a problem with this suspension 5 years ago so assume it was flushed but it has not been done recently. Last time the back was high and front was low. This time the whole car is low. The pump sounds like a the potential problem. Thanks!