GM RPO Code Database

← All owner tools  ·  Decode your own SPID label with the GM RPO decoder

By FullSizeChevy.com Updated

Search the code list

24,366
codes on file
51,776
documented meanings
1973–2026
model years

Type a code, or describe the option in words. Every entry says where the meaning came from and which years we hold it for, because an RPO code can mean different things in different eras and a list that hides that is worse than no list.

CodeMeaningYearsSourcing
001 P RAT, M RATIO, 3.70 1991 GM sourced
001 Rat, M Ratio, 3.70 1991 GM dated
002 P RAT, M RATIO, 4.11 (4 1/9) 1991 GM sourced
002 Rat, M Ratio, 4.11 (4 1/9) 1991 GM dated
003 Rat, M Ratio, 4.33 1991 GM dated
003 P RAT, M RATIO, 4.33 1991 GM sourced
004 Rat, M Ratio, 4.78 1994 GM dated
004 P RAT, M RATIO, 4.78 1994 GM sourced
005 Rat, M Ratio, 4.56 (4 5/9) 1991 GM dated
005 P RAT, M RATIO, 4.56 (4 5/9) 1991 GM sourced
006 Rat, M Ratio, 4.63 (4 5/8) 1996 GM dated
006 P RAT, M RATIO, 4.63 (4 5/8) 1996 GM sourced
007 Rat, M Ratio, 3.07 1997 GM dated
007 P RAT, M RATIO, 3.07 1997 GM sourced
008 Rat, M Ratio, 4.88 1996 GM dated
008 P RAT, M RATIO, 4.88 1996 GM sourced
009 Rat, M Ratio, 5.29 1991 GM dated
009 P RAT, M RATIO, 5.29 1991 GM sourced
00A Spare wheel upgrade Chevrolet Silverado 1500 2022–2023 GM sourced
00A Wheel Spare 17 X 8.0, J, Steel, Design 2 — Reference
00D Not Equipped with Climate Control Knob Digital Temperature Display Chevrolet Silverado 1500 2022 Provisional
00G Not Equipped with Heated Steering Wheel, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00L Ccl, R Secondary Color, Exterior, Prime 1989 GM dated
00L P CCL, R SECONDARY COLOR, EXTERIOR, PRIME 1989 GM sourced
00L Exterior Color,secondary,prime,union City Body — GM dated
00R Not Equipped with Heated Rear Outboard Seats, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00U Ccu, M Primary Color, Exterior, Prime 1989 GM dated
00U P CCU, M PRIMARY COLOR, EXTERIOR, PRIME 1989 GM sourced
00U Exterior Color,primary,prime,upper,union City Body — GM dated
00V Not Equipped with Heated or Ventilated Front Seats, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00Y Not Equipped with Rear Park Assist, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
00Z Not Equipped with Front and Rear Park Assist, see dealer for details Chevrolet Silverado 1500 2022–2023 Provisional
010 Rat, M Ratio, 5.43 1991 GM dated
010 P RAT, M RATIO, 5.43 1991 GM sourced
011 Rat, M Ratio, 5.57 (5 4/7) 1991 GM dated
011 P RAT, M RATIO, 5.57 (5 4/7) 1991 GM sourced
012 Rat, M Ratio, 5.83 1991 GM dated
012 P RAT, M RATIO, 5.83 1991 GM sourced
013 Rat, M Ratio, 3.73 1995 GM dated
013 P RAT, M RATIO, 3.73 1995 GM sourced
014 Rat, M Ratio, 6.14 (6 1/7) 1991 GM dated
014 P RAT, M RATIO, 6.14 (6 1/7) 1991 GM sourced
015 Rat, M Ratio, 6.17 1991 GM dated
015 P RAT, M RATIO, 6.17 1991 GM sourced
016 Rat, M Ratio, 5.25 1991 GM dated
016 P RAT, M RATIO, 5.25 1991 GM sourced
017 Rat, M Ratio, 6.50 1991 GM dated
017 P RAT, M RATIO, 6.50 1991 GM sourced
018 Rat, M Ratio, 6.65 1989 GM dated
018 P RAT, M RATIO, 6.65 1989 GM sourced
019 Rat, M Ratio, 6.67 1989 GM dated
019 P RAT, M RATIO, 6.67 1989 GM sourced
01A Stc, R Stripe Color, Accent, Two Tone, Silver/gunmetal (1995) 1998 GM dated
01A P STC, R STRIPE COLOR, ACCENT, TWO TONE, SILVER/GUNMETAL (1995) 1998 GM sourced
01A Stripe Color Accent, Two Tone, Silver/gunmetal — GM dated
01A Trim Color Seat Jet Black — GM dated
01B Trim Color Seat LT Neutral — Reference
01C Trim Color Seat LT Titanium — Reference
01D Trim Color Seat LT Cashmere — Reference
01E Trim Color Seat DK Titanium — Reference

The full list, A to Z

Showing 301–400 of 931 codes beginning with O. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
OIC P, LOCAL, GM OF EUROPE OIC 1992 GM sourced
OID P, LOCAL, GM OF EUROPE OID 1992 GM sourced
OIE P, LOCAL, GM OF EUROPE OIE 1992 GM sourced
OIF P, LOCAL, GM OF EUROPE OIF 1992 GM sourced
OIG P, LOCAL, GM OF EUROPE OIG 1992 GM sourced
OIH P, MSM, R, MODEL CONVERSION, RENAULT TRUCK, EXTRA LONG WHEELBASE, HIGH ROOF, 3,900 KG, 210 P, 0, 0, A — Provisional
OII P, MSM, R, MODEL CONVERSION, RENAULT TRUCK, LONG WHEELBASE, STD ROOF, 3,900 KG, 210 P, 0, 0, A — Provisional
OIJ P, MSM, R, MODEL CONVERSION, RENAULT TRUCK, LONG WHEELBASE, HIGH ROOF, 3,900 KG, 210 P, 0, 0, A — Provisional
OIK P, MSM, R, MODEL CONVERSION, RENAULT TRUCK, EXTRA LONG WHEELBASE, STD ROOF, 3,900 KG, 210 P, 0, 0, A — Provisional
OIL P, MSM, R, MODEL CONVERSION, RENAULT TRUCK, EXTRA LONG WHEELBASE, HIGH ROOF, 3,3,900 KG, 210 P, 0, 0, A — Provisional
OIM P, LOCAL, GM OF EUROPE OIM 1992 GM sourced
OIN P, LOCAL, GM OF EUROPE OIN 1992 GM sourced
OIO P, LOCAL, GM OF EUROPE OIO 1992 GM sourced
OIP P, CONTROL, TYPE APPROVAL BREAKPOINT 01 1999 Provisional
OIQ P, CONTROL, TYPE APPROVAL BREAKPOINT 02 1999 Provisional
OIR P, CONTROL, TYPE APPROVAL BREAKPOINT 03 1999 Provisional
OIS P, CONTROL, TYPE APPROVAL BREAKPOINT 04 1999 Provisional
OIT P, CONTROL, TYPE APPROVAL BREAKPOINT 05 1999 Provisional
OIU P, LOCAL, GM OF EUROPE OIU 1998 Provisional
OIV P, LOCAL, GM OF EUROPE OIV 1998 Provisional
OIW P, LOCAL, GM OF EUROPE OIW 1998 Provisional
OIX P, LOCAL, GM OF EUROPE OIX 1998 Provisional
OIY P, LOCAL, GM OF EUROPE OIY 1998 Provisional
OIZ P, LOCAL, GM OF EUROPE OIZ 1992 GM sourced
OJ0 P, LOCAL, GM OF EUROPE OJ0 1992 GM sourced
OJ1 P, LOCAL, GM OF EUROPE OJ1, 20725 — Provisional
OJ2 P, LOCAL, GM OF EUROPE OJ2, 20725 — Provisional
OJ3 P, LOCAL, GM OF EUROPE OJ3, 20725 — Provisional
OJ4 P, LOCAL, GM OF EUROPE OJ4, 20725 — Provisional
OJ5 P, LOCAL, GM OF EUROPE OJ5, 20725 — Provisional
OJ6 P, LOCAL, GM OF EUROPE OJ6, 20220 — Provisional
OJ7 P, LOCAL, GM OF EUROPE OJ7, 20220 — Provisional
OJ8 P, LOCAL, GM OF EUROPE OJ8, 20220 — Provisional
OJ9 P, LOCAL, GM OF EUROPE OJ9, 11105 — Provisional
OJA P, LOCAL, GM OF EUROPE OJA 1992 GM sourced
OJB P, LOCAL, GM OF EUROPE OJB 1992 GM sourced
OJC P, LOCAL, GM OF EUROPE OJC 1992 GM sourced
OJD P, LOCAL, GM OF EUROPE OJD 1992 GM sourced
OJE P, LOCAL, GM OF EUROPE OJE 1992 GM sourced
OJF P, LOCAL, GM OF EUROPE OJF 1992 GM sourced
OJG P, LOCAL, GM OF EUROPE OJG 1992 GM sourced
OJH P, LOCAL, GM OF EUROPE OJH, 20627 — Provisional
OJI P, LOCAL, GM OF EUROPE OJI 1992 GM sourced
OJJ P, LOCAL, GM OF EUROPE OJJ 1992 GM sourced
OJK P, LOCAL, GM OF EUROPE OJK 1992 GM sourced
OJL P, LOCAL, GM OF EUROPE OJL 1992 GM sourced
OJM P, LOCAL, GM OF EUROPE OJM 1992 GM sourced
OJN P, LOCAL, GM OF EUROPE OJN 1992 GM sourced
OJO P, LOCAL, GM OF EUROPE OJO 1992 GM sourced
OJP P, LOCAL, GM OF EUROPE OJP 1992 GM sourced
OJQ P, LOCAL, GM OF EUROPE OJQ 1992 GM sourced
OJR P, LOCAL, GM OF EUROPE OJR 1992 GM sourced
OJS P, LOCAL, GM OF EUROPE OJS 1992 GM sourced
OJT P, LOCAL, GM OF EUROPE OJT 1992 GM sourced
OJU P, LOCAL, GM OF EUROPE OJU 1992 GM sourced
OJV P, LOCAL, GM OF EUROPE OJV 1992 GM sourced
OJW P, LOCAL, GM OF EUROPE OJW 1992 GM sourced
OJX P, LOCAL, GM OF EUROPE OJX 1992 GM sourced
OJY P, LOCAL, GM OF EUROPE OJY 1992 GM sourced
OJZ P, LOCAL, GM OF EUROPE OJZ 1992 GM sourced
OK0 P, LOCAL, GM OF EUROPE OK0 1992 GM sourced
OK1 P, LOCAL, GM OF EUROPE OK1 1992 GM sourced
OK2 P, LOCAL, GM OF EUROPE OK2, 11105 — Provisional
OK3 P, LOCAL, GM OF EUROPE OK3 1992 GM sourced
OK4 P, LOCAL, GM OF EUROPE OK4, 20220 — Provisional
OK5 P, LOCAL, GM OF EUROPE OK5, 21014 — Provisional
OK6 P, LOCAL, GM OF EUROPE OK6 1992 GM sourced
OK7 P, LOCAL, GM OF EUROPE OK7, 20220 — Provisional
OK8 P, LOCAL, GM OF EUROPE OK8 1992 GM sourced
OK9 P, LOCAL, GM OF EUROPE OK9, 20220 — Provisional
OKA P, LOCAL, GM OF EUROPE OKA 1992 GM sourced
OKB P, LOCAL, GM OF EUROPE OKB 1992 GM sourced
OKC P, LOCAL, GM OF EUROPE OKC 1992 GM sourced
OKD P, LOCAL, GM OF EUROPE OKD 1992 GM sourced
OKE P, LOCAL, GM OF EUROPE OKE 1992 GM sourced
OKF P, LOCAL, GM OF EUROPE OKF 1992 GM sourced
OKG P, LOCAL, GM OF EUROPE OKG 1992 GM sourced
OKH P, LOCAL, GM OF EUROPE OKH 1992 GM sourced
OKI P, LOCAL, GM OF EUROPE OKI 1992 GM sourced
OKJ P, LOCAL, GM OF EUROPE OKJ 1992 GM sourced
OKK P, LOCAL, GM OF EUROPE OKK 1992 GM sourced
OKL P, PLT, R, PLANT CODE, OKLAHOMA CITY, OK, USA this code has more than one documented meaning — filter by year 1997 GM sourced
OKM P, LOCAL, GM OF EUROPE OKM 1992 GM sourced
OKN P, LOCAL, GM OF EUROPE OKN 1992 GM sourced
OKO P, LOCAL, GM OF EUROPE OKO 1992 GM sourced
OKP P, LOCAL, GM OF EUROPE OKP 1992 GM sourced
OKQ P, LOCAL, GM OF EUROPE OKQ 1992 GM sourced
OKR P, LOCAL, GM OF EUROPE OKR 1992 GM sourced
OKS P, LOCAL, GM OF EUROPE OKS 1992 GM sourced
OKT P, LOCAL, GM OF EUROPE OKT 1992 GM sourced
OKU P, LOCAL, GM OF EUROPE OKU 1992 GM sourced
OKV P, LOCAL, GM OF EUROPE OKV 1992 GM sourced
OKW P, LOCAL, GM OF EUROPE OKW 1992 GM sourced
OKX P, LOCAL, GM OF EUROPE OKX 1992 GM sourced
OKY P, LOCAL, GM OF EUROPE OKY 1992 GM sourced
OKZ P, LOCAL, GM OF EUROPE OKZ 1992 GM sourced
OL0 P, LOCAL, GM OF EUROPE OL0 1992 GM sourced
OL1 P, LOCAL, GM OF EUROPE OL1 1992 GM sourced
OL2 P, LOCAL, GM OF EUROPE OL2 1992 GM sourced
OL3 P, LOCAL, GM OF EUROPE OL3 1992 GM sourced

Using the master list

This is the full GM RPO code list we hold — every Regular Production Option code in the database, searchable by code or by description and filterable to a single model year. Most RPO lists on the internet run to a couple of hundred codes copied from one service manual. This one holds 24,366, and tells you where each meaning came from.

What an RPO code is

RPO stands for Regular Production Option. Every piece of factory equipment on a GM vehicle carries a three-character code, and the ones fitted to your truck are printed on the Service Parts Identification label in the glove box or on the door jamb. G80 is a locking differential, Z71 is an off-road suspension package, K05 is a block heater.

They matter because they are what the factory actually built, not what a listing claims. If you are buying a truck, the label settles the argument. If you are ordering parts, the axle and transmission codes decide which part fits.

Why the same code means different things

GM has reused these codes for decades and across every division. A code that means one thing on a 1978 pickup can mean something unrelated on a 2015 SUV, and plenty of entries in circulation come from bulk listings with no year and no document behind them.

So every entry here is labelled with where it came from. GM sourced means we hold an actual GM document for it. GM dated means it comes from the option master with a date attached. Reference means it is in general circulation with nothing dated behind it — still useful, but treat it as a lead rather than a fact. Filtering by your model year is the single best way to get an answer you can rely on.

Read the codes off your own label

If you have the sticker in front of you, the RPO decoder will read a photo of it and decode every code at once, checked against your model year.

FullSizeChevy.com is not affiliated with, endorsed by, or sponsored by General Motors. Chevrolet, GMC, Cadillac, Silverado, Sierra and related marks are trademarks of General Motors LLC and are used here only to identify applicable vehicles. RPO meanings vary by model year, platform and configuration — verify against your own label before buying parts.

Scroll to Top