I have a 2003 Lexus es300, it shakes when I accelerate to around 40 mph and the check enginge light comes on (message to change shake sensors). Replaced but light and message the same.

SOURCE: 1999 lexus es300

This has been happening to my car as well. It typically happens when your oxygen sensors start to wear out. Mine does it once in a while and I have the local auto store reset it. Go to your nearest auto store and have them tell you what code it is and ask them to reset the OBD so the light goes out. If the light comes on right away and the code has to do with your oxygen sensors, have them replaced. There are three, two are easy to replace, one takes some effort as it is in a tough to get to spot. The dealer will charge you a fortune to replace them so do it yourself or through a local mechanic. It is a very simple task other then the access.

SOURCE: AC light flashes on my 2003 lexus es300

Change the AC Relay from the Fuse Box under the hood. I can't recall the part number now. However, you can email me if you really want to fix it by yourself.

[email protected]

KN

SOURCE: when i start car it sputters and shakes until 45 mph.

spark plugs wires needs complete tune up also synthetic oil change not designed to run on regular oil then check bearings

SOURCE: Lexus sc400 electrical problem

the computer is bad and also these cars are known for the insturment clusters to go bad along with the computer. get them both fixed and it will solve your problem.

SOURCE: 07 lexus rx 350 with check engine light code p0304

Hi, did you ever get an answer? I have the same issue. Thanks.