Reserved for Label RPO's and errors found.

AG1 - ADJUSTER FRT ST POWER, MULTI-DIRECTIONAL, DRIVER

AL0 - SENSOR INDICATOR INFLATABLE RESTRAINT, FRT PASS/CHILD PRESENCE DETECTOR

AM9 - SEAT,REAR,FOLDING SPLIT BACK

AP3 - LOCK CONTROL REMOTE, KEYLESS ENTRY, START

AR9 - not defined (non-GM source lists Front Bucket Seat, Power)(another code on label defines the same seat).

AT8 (ver#1) - RESTRAINT PROVISIONS CHILD,REAR SEAT,ANCHORAGE,FLOOR

AT8 (ver#2) - RESTRAINT PROVISIONS CHILD, RR SEAT, RR FACING

AXJ - VEHICLE TYPE PASSENGER CAR

AY0 - RESTRAINT SYSTEM SEAT, INFLATABLE, DRIVER & PASS, FRT SIDE, ROOF SIDE

 

Griz I hope im not being redundant your list seemed a bit nicer than mine but this is what I had handy

 

So many RPO's so little time...

 

This site online may help as well but not sure how good it is - RPO Codes Decoder - GM Chevrolet Buick Cadillac - Regular Production Option

 

GM has recycled a lot of RPO codes over the years. For instance what LT1 engine RPO means depends on the year.

The lists you really want are the ones from the parts books for your model & years.

I have light truck parts books from 1966 all the way through 1993 when they stopped putting them on paper. I scanned all of them and gave copies to GMPartsWiki.com
Ian has put together a massive library of Parts books.

I have the 94 through 2001 CK ST G M & P Parts books on fiche. I know they published parts books on fiche up to the 2010-2013 ish range.

 

@hatzie

Yep.

It's unexpected that these all seem undated and therefore hard to attribute to vehicles.

"GM has recycled a lot of RPO codes over the years. For instance what LT1 engine RPO means depends on the year."

 

I've made this thread a sticky for the forum.

 

Another:

 

Ya, when it comes to RPO Code definitions, I am truly a wealthy guy....

 

Going thru all these helpful provided RPO Lists, plus others found over time, I've been able to identify nearly all numbers on my 2010's SPID. To date I only have it written on paper but if I can make a little more headway then I'm going to type it in for my Impala file.

It has given me more hints on suspension but it's criptic. For example, in one case (over 4 RPO numbers) it seems to indicate the front and rear suspension are somehow electronically managed. Inspecting, I see no indicators. So it must mean something else. Maybe it's indicating to Dealer to look for suspension details electronically on the GM computer system. Dunno.

Anyway, I started a thread for vetting my findings regarding what info is on my car's SPID. Maybe that process will over time give us on this forum a hand.

Here:

https://www.impalaforums.com/threads/about-impala-spid-and-rpo.1894713/

.