GM RPO Code Database

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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 401–471 of 471 codes beginning with 1. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
1Q8 C, VEHICLE INSPECTION, GSA FORM 1398 1991 Provisional
1Q9 C, FORM, #7342, U. S. POSTAL SERVICE 1990 Provisional
1QA C, PPS, R, PAINT SCHEME, 26 1990 Provisional
1QB C, PPS, R, PAINT SCHEME, 27 1990 Provisional
1QC C, PPS, R, PAINT SCHEME, 28 1990 Provisional
1QD C, PPS, R, PAINT SCHEME, 29 1990 Provisional
1QE C, PPS, R, PAINT SCHEME, 30 1990 GM sourced
1QF C, PPS, R, PAINT SCHEME, 31 1990 Provisional
1QG C, PPS, R, PAINT SCHEME, 32 1990 GM sourced
1QU Primary Color Exterior, Smoke Beige Mica — Reference
1R3 C, VEHICLE, IDENTIFICATION LABEL 1 1998 Provisional
1R4 C, VEHICLE, IDENTIFICATION LABEL 2 1989 Provisional
1R5 C, FORM, TIRE RATING DISCLAIMER 1990 Provisional
1RU Primary Color Exterior, Pannacotta, (opel) — Reference
1SA P, SPP, R, PACKAGE, OPTION 01 this code has more than one documented meaning — filter by year 1998 GM sourced
1SB P, SPP, R, PACKAGE, OPTION 02 this code has more than one documented meaning — filter by year 1988 GM sourced
1SC P, SPP, R, PACKAGE, OPTION 03 this code has more than one documented meaning — filter by year 1998 GM sourced
1SD P, SPP, R, PACKAGE, OPTION 04 this code has more than one documented meaning — filter by year 1998 GM sourced
1SE P, SPP, R, PACKAGE, OPTION 05 this code has more than one documented meaning — filter by year 1998 GM sourced
1SF P, SPP, R, PACKAGE, OPTION 06 1988 GM sourced
1SG P, SPP, R, PACKAGE, OPTION 07 1998 GM sourced
1SH P, SPP, R, PACKAGE, OPTION 08 1988 GM sourced
1SJ P, SPP, R, PACKAGE, OPTION 09 1988 GM sourced
1SK P, SPP, R, PACKAGE, OPTION 10 1988 GM sourced
1SL P, SPP, R, PACKAGE, OPTION 11 1988 GM sourced
1SM P, SPP, R, PACKAGE, OPTION 12 1988 GM sourced
1SN P, SPP, R, PACKAGE, OPTION 13 1988 GM sourced
1SP P, SPP, R, PACKAGE, OPTION 14 1988 GM sourced
1SQ P, SPP, R, PACKAGE, OPTION 15 1988 GM sourced
1SR P, SPP, R, PACKAGE, OPTION 16 1988 GM sourced
1SS P, SPP, R, PACKAGE, OPTION 17 1988 GM sourced
1ST P, SPP, R, PACKAGE, OPTION 18 1988 Provisional
1SU P, SPP, R, PACKAGE, OPTION 19 1988 GM sourced
1SV P, SPP, R, PACKAGE, OPTION 20 this code has more than one documented meaning — filter by year 1988 GM sourced
1SW P, SPP, R, PACKAGE, OPTION 21 1988 GM sourced
1SX P, SPP, R, PACKAGE, OPTION 22 1988 GM sourced
1SY P, SPP, R, PACKAGE, OPTION 23 1988 GM sourced
1SZ P, DISCOUNT, OPTION PACKAGE 1989 GM sourced
1T1 C, HOSE, RADIATOR & HEATER SI RUB 1990 GM sourced
1TA C, AXLE, FULL FLOATING this code has more than one documented meaning — filter by year 1989 GM sourced
1TB P, GOS, R, OPT GROUP SELECTION, PACKAGE #1 1997 GM sourced
1TC P, GOS, R, OPT GROUP SELECTION, PACKAGE #2 1997 GM sourced
1TD P, GOS, R, OPT GROUP SELECTION, PACKAGE #3 1997 GM sourced
1TE P, GOS, R, OPT GROUP SELECTION, PACKAGE #4 1997 GM sourced
1TF P, GOS, R, OPT GROUP SELECTION, PACKAGE #5 1997 GM sourced
1TG P, GOS, R, OPT GROUP SELECTION, PACKAGE #6 1997 GM sourced
1TH P, GOS, R, OPT GROUP SELECTION, PACKAGE #7 1997 GM sourced
1TI P, GOS, R, OPT GROUP SELECTION, PACKAGE #8 1997 GM sourced
1TJ P, GOS, R, OPT GROUP SELECTION, PACKAGE #9 1997 GM sourced
1TK P, GOS, R, OPT GROUP SELECTION, PACKAGE #10 1993 GM sourced
1TL P, GOS, R, OPT GROUP SELECTION, PACKAGE #11 1993 GM sourced
1TM P, GOS, R, OPT GROUP SELECTION, PACKAGE #12 1993 GM sourced
1TN P, GOS, R, OPT GROUP SELECTION, PACKAGE #13 1993 GM sourced
1TO P, GOS, R, OPT GROUP SELECTION, PACKAGE #14 1993 GM sourced
1TP P, GOS, R, OPT GROUP SELECTION, PACKAGE #15 1993 GM sourced
1TQ C, MODIFICATION, ENGINE, NATURAL GAS (SEO) this code has more than one documented meaning — filter by year 1996 GM sourced
1TR Modification Appearance (seo) — Reference
1UB C, INDICATOR, A/CL RESTRICTION (SEO) this code has more than one documented meaning — filter by year 1994 GM sourced
1V2 Hub Cap Unit — Reference
1VL Package VL Option 1 — Reference
1W2 Rear Axle,4.10 Ratio,5500 Lbs,single Speed — Reference
1WT Package WT Option 1 — Reference
1XE Package Cxe Option 1 — Reference
1XF Package Xfe Option 1 — Reference
1XL Package Cxl Option 1 — Reference
1XR Package Cxr Option 2 — Reference
1XS Package Cxs Option 1 — Reference
1XV Package Saturn XV Option — Reference
1Z1 P, RUT, R, RUSTPROOFING, OUTSIDE SOURCE, MEETS MIL STD 1223 1990 Provisional
1Z2 P, VEHICLE PREPARATION, ANTI CORROSION HOT MELT 1990 GM sourced
1ZR Package ZR Option 1 — Reference

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.

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