GM RPO Code Database

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

CodeMeaningYearsSourcing
1DD P, SCHEDULE SEQUENCING, 04 1986 Provisional
1DE P, SCHEDULE SEQUENCING, 05 1986 Provisional
1DF P, SCHEDULE SEQUENCING, 06 1986 Provisional
1DG P, SCHEDULE SEQUENCING, 07 1986 Provisional
1DH P, SCHEDULE SEQUENCING, 08 1986 Provisional
1DI P, SCHEDULE SEQUENCING, 09 1986 Provisional
1DJ P, SCHEDULE SEQUENCING, 10 1986 Provisional
1DK P, SCHEDULE SEQUENCING, 11 1986 Provisional
1DL P, SCHEDULE SEQUENCING, 12 1986 Provisional
1DM P, SCHEDULE SEQUENCING, 13 1986 Provisional
1DN P, SCHEDULE SEQUENCING, 14 1986 Provisional
1DO P, SCHEDULE SEQUENCING, 15 1986 Provisional
1DP P, SCHEDULE SEQUENCING, 16 1986 Provisional
1DQ P, SCHEDULE SEQUENCING, 17 1986 Provisional
1DR P, SCHEDULE SEQUENCING, 18 1986 Provisional
1DS P, SCHEDULE SEQUENCING, 19 1986 Provisional
1DT P, SCHEDULE SEQUENCING, 20 1986 Provisional
1DU P, SCHEDULE SEQUENCING, 21 1986 Provisional
1DV P, SCHEDULE SEQUENCING, 22 1986 Provisional
1DW P, SCHEDULE SEQUENCING, 23 1986 Provisional
1DX P, SCHEDULE SEQUENCING, 24 1986 Provisional
1DY P, SCHEDULE SEQUENCING, 25 1986 Provisional
1DZ P, SCHEDULE SEQUENCING, 26 1986 Provisional
1EA P, SCHEDULE SEQUENCING, 27 1986 Provisional
1EB P, SCHEDULE SEQUENCING, 28 1986 Provisional
1EC P, SCHEDULE SEQUENCING, 29 1986 Provisional
1ED P, SCHEDULE SEQUENCING, 30 1986 Provisional
1EG Trim Color DR Panel Med Urban — Reference
1EH Trim Color DR Panel Sonic Silver — Reference
1EI Trim Color DR Panel Sonic Yellow — Reference
1EN Trim Color DR Panel Mojave — Reference
1EP Trim Color DR Panel Twilight Blue — Reference
1EQ Trim Color DR Panel Carbon Flash Metallic PC , T3, With Ice Blue Pipin — Reference
1ER Trim Color DR Panel Indian Summer — Reference
1ET Trim Color DR Panel Matte Finish — Reference
1EX Trim Color DR Panel Carbon Flash Met/red Light Piping — Reference
1FL Package FL Option 1 — Reference
1FV Sales Merlot Jewel Special, Var 1 — Reference
1FW Sales Merlot Jewel Special, Var 2 — Reference
1FY Sales Hydro Blue Special Var I — Reference
1FZ Sales Hydro Blue Special Var II — Reference
1HY Package Hybrid Option 1 — Reference
1K5 P, LEVER, AUTO TRANS LOW GEAR LOCKOUT this code has more than one documented meaning — filter by year 1989 GM sourced
1LD Components OF Z21 Beretta GT Package — Reference
1LE P, LOCAL, RESERVED FOR 2004 GMX-281 GTO, 20409 E, 8 — GM sourced
1LF Components OF Z12 Appearance Package — Reference
1LG Components OF Zf2 Canadian Package — Reference
1LH Components OF Z13 Sports Package — Reference
1LJ Components OF 'ss' Package — Reference
1LR P, PERFORMANCE PACKAGE, ENHANCED this code has more than one documented meaning — filter by year 1995 Provisional
1LS Package LS Option 1 — Reference
1LT Package LT Option 1 — Reference
1LZ Package LZ Option 1 — Reference
1M1 C, VEM, R, MARKING, REFLECTIVE WHITE, U.S. ARMY 1998 GM sourced
1M3 C, VEM, R, MARKING, REFLECTIVE WHITE, U.S. NAVY 1998 GM sourced
1M4 C, VEM, R, MARKING, REFLECTIVE BLACK, U.S. NAVY 1998 GM sourced
1M5 C, VEM, R, MARKING, REFLECTIVE YELLOW, U.S. MARINE CORPS 1997 GM sourced
1M6 C, VEM, R, MARKING, REFLECTIVE BLUE, U.S. NAVY 1998 GM sourced
1M7 C, VEM, R, MARKING, REFLECTIVE BLACK, U.S. MARINE CORPS 1997 Provisional
1M8 C, VEM, R, MARKING, REFLECTIVE WHITE, DEFENSE LOGISTICS AGENCY 1989 GM sourced
1N1 C, VEM, R, MARKING, REFLECTIVE BLUE, DEFENSE LOGISTICS AGENCY 1989 Provisional
1N4 C, VEM, R, MARKING, REFLECTIVE BLACK, ARMY NATIONAL GUARD 1989 GM sourced
1N5 C, VEM, R, MARKING, REFLECTIVE BLACK, U.S. ARMY 1989 GM sourced
1N6 C, VEM, R, MARKING, REFLECTIVE YELLOW, U.S. AIR FORCE 1998 GM sourced
1N7 C, VEM, R, MARKING, LUSTERLESS BLACK, U.S. AIR FORCE 1998 GM sourced
1N8 P, VEM, R, MARKING, REFLECTIVE BLUE, U.S. AIR FORCE 1990 Provisional
1P2 C, PHOTOGRAPH, 8 X 10, GLOSSY QTY OF 2 SETS 1990 Provisional
1P3 C, PHOTOGRAPH, 8 X 10, GLOSSY QTY OF 3 SETS 1990 Provisional
1PA C, PPS, R, PAINT SCHEME, 01 1997 GM sourced
1PB C, PPS, R, PAINT SCHEME, 02 1997 GM sourced
1PC C, PPS, R, PAINT SCHEME, 03 1997 GM sourced
1PD C, PPS, R, PAINT SCHEME, 04 1997 GM sourced
1PE C, PPS, R, PAINT SCHEME, 05 1997 GM sourced
1PF C, PPS, R, PAINT SCHEME, 06 1997 GM sourced
1PG C, PPS, R, PAINT SCHEME, 07 1990 GM sourced
1PH C, PPS, R, PAINT SCHEME, 08 1997 GM sourced
1PI C, PPS, R, PAINT SCHEME, 09 1997 GM sourced
1PJ C, PPS, R, PAINT SCHEME, 10 1990 GM sourced
1PK C, PPS, R, PAINT SCHEME, 11 1990 GM sourced
1PL C, PPS, R, PAINT SCHEME, 12 1997 GM sourced
1PM C, PPS, R, PAINT SCHEME, 13 1990 GM sourced
1PN C, PPS, R, PAINT SCHEME, 14 1990 GM sourced
1PP C, PPS, R, PAINT SCHEME, 15 1990 GM sourced
1PQ C, PPS, R, PAINT SCHEME, 16 1990 GM sourced
1PR C, PPS, R, PAINT SCHEME, 17 1990 GM sourced
1PS C, PPS, R, PAINT SCHEME, 18 1990 GM sourced
1PT C, PPS, R, PAINT SCHEME, 19 1990 GM sourced
1PU C, PPS, R, PAINT SCHEME, 20 1990 GM sourced
1PV C, PPS, R, PAINT SCHEME, 21 1990 GM sourced
1PW C, PPS, R, PAINT SCHEME, 22 1990 GM sourced
1PX C, PPS, R, PAINT SCHEME, 23 1990 GM sourced
1PY C, PPS, R, PAINT SCHEME, 24 1990 GM sourced
1PZ C, PPS, R, PAINT SCHEME, 25 1990 GM sourced
1Q1 C, GIF, R, INSPECTION, APPLICATION GSA FORM 308, FOR CF & CX BIDS 1998 Provisional
1Q2 C, GIF, R, INSPECTION, APPLICATION DD FORM 250, FOR CM BIDS 1998 Provisional
1Q3 C, GIF, R, INSPECTION, APPLICATION DD FORM 250, NOT INSPECTED FOR CM BIDS 1998 Provisional
1Q4 C, GIF, R, INSPECTION, APPLICATION DD FORM 250, PILOT INSPECTION 1998 Provisional
1Q5 C, VEHICLE INSPECTION, PREDELIVERY CHEVROLET FORM 149 1991 Provisional
1Q6 P, VEHICLE INSPECTION, PREDELIVERY FORM 1998 Provisional
1Q7 C, GIF, R, INSPECTION, APPLICATION P.S. FORM 7342 FOR U.S. POSTAL BIDS 1989 Provisional

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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