[glitchc]

The question does not specify what kind of car it is. Technically speaking, a toy car (Hot wheels or a scaled model) could be walked to a car wash.

Now why anyone would wash a toy car at a car wash is beyond comprehension, but the LLM is not there to judge the user's motives.

[stetrain]

I think if surveyed at least 90% of native English speakers would understand "I want to wash my car" to mean a full size automobile. The next largest group would probably ask a clarifying question, rather than assume a toy car.

[glitchc]

Yes, but you're speaking to a computer, not a person. It, of course, runs into the same limitations that every computer system runs into. In this case, it's undefined/inconsistent behavior when inputs are ambiguous.

[acuozzo]

> I want to wash my car

The question doesn't clearly state that the user wants to have his car washed at the car wash.

"I want to wash my car" is far less clear than "I want to have my car washed". A reasonable alternative interpretation is DIY.

Even better: "I wish to have my car washed by the crew and/or machinery at the local car wash business".

https://imgur.com/tCSPwYp