1988 Roadster codes

[Bruce R.]

Can anybody please tell me what the codes 21T and E57 mean on my Canadian new 1988 roadster.

[Tom S.]

Re: 1988 Roadster codes

If I can find my build sheet for my 88 I will see if I can help. I thought I had a copy of all that but can't find it right now. I am going to look more. I don't know if mine had those codes or not. Tom

[Erik S.]

Re: 1988 Roadster codes

well - the option codes 'book' of Gordon is listing neither of the codes which in itself is unusual as the book contains of 20+ pages

[Tom H.]

Re: 1988 Roadster codes

I was unable to locate these codes either.

[Chuck S.]

Re: 1988 Roadster codes

I had previously come up empty using Antonick's Black Book.

I suspect those codes are off the build label on the inside surface of the center console lid. There are codes there that deal with production details well beyond the usual optiond covered by Corvette reference books. I would have bet on you having the best shot, Tom.

[John D.]

Re: 1988 Roadster codes

If you post the last 8 digits of your VIN I'll see if it's in the GM vehicle information system (VIS). Not sure if it goes back to 88 or not....

[Joe L.]

Re: 1988 Roadster codes

I had previously come up empty using Antonick's Black Book.

I suspect those codes are off the build label on the inside surface of the center console lid. There are codes there that deal with production details well beyond the usual optiond covered by Corvette reference books. I would have bet on you having the best shot, Tom.

Chuck and Bruce------


I'm virtually certain that's the problem here. In any event, I can say, for certain, that these are not RPO codes. These are codes for other aspects of the car's build which may (or may not) be related to certain RPO's on the car.

By the C4 era, the build of Corvettes had gotten VERY complicated. The old "ECL" system was no longer adequate and a greatly expanded system was adopted. This was not unique to Corvettes since the complexity of other GM cars increased as well.

[Bruce R.]

Re: 1988 Roadster codes

Thanks Guys, VIN # is JG1YY3181J5103426