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| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| 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 712 codes beginning with D. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| D97 | P, CCT, R, PAINT, - DELETE | 1998 | Provisional |
| D98 | P, STP, R, STRIPE, ACCENT this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| D99 | P, CCT, R, PAINT, SPECIAL TWO TONE, BODY PROVISIONS FOR this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| D9A | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (A) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| D9B | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (B) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| D9C | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (C) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| D9D | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (D) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| D9E | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (E) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| D9F | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (F) | 1998 | GM sourced |
| D9G | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (G) | 1998 | GM sourced |
| D9H | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (H) | 1998 | GM sourced |
| D9I | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (I) | 1998 | GM sourced |
| D9J | P, DIRECT SALES, DELPHI INTERIOR & LIGHTNING, CONFIDENTIAL (J) | 1998 | GM sourced |
| D9K | P, DIRECT SALES, SUZUKI (HUNGARY) | 1999 | Provisional |
| D9L | P, DIRECT SALES, INDIA | 1999 | Provisional |
| D9M | P, DIRECT SALES, SOUTH AFRICA (DELTA) | 1999 | Provisional |
| D9N | Handle O/s, L/gate, R/cmpt, Gray | — | Reference |
| D9O | Sensor Front Airbag (efs) - Single | — | Reference |
| D9P | P, CONTROL, STEERING GEAR, VAR. 1, 215 E, 0 | — | GM sourced |
| D9Q | P, CONTROL, STEERING GEAR, VAR. 2, 215 E, 0 | — | Provisional |
| D9Y | Carrier Pkg RR Mounted, 4 Place Bicycle Rack | — | Reference |
| D9Z | P, SFG, M, GEAR, SPEEDO DRIVEN, SELECTION NOT REQUIRED | 1992 | GM sourced |
| DA0 | P, ARM REST, FRT SEAT, STORAGE | 1986 | GM sourced |
| DA1 | P, ARM REST, RR SEAT, STORAGE | 1989 | GM sourced |
| DA2 | P, GVW, M, GVW RATING, 4,490 KG, 711 E, 8 this code has more than one documented meaning — filter by year | — | GM sourced |
| DA3 | P, GVW, M, GVW RATING, 5,700 LBS this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| DA4 | P, GVW, M, GVW RATING, 12,500 LBS this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| DA5 | P, ARM REST, RR SEAT, CENTER this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| DA6 | P, ARM REST, FRT SEAT, STORAGE, INSULATED | 1998 | Provisional |
| DA7 | P, ARM REST, FRT SEAT, LH | 1999 | GM sourced |
| DA8 | P, ARM REST, RR SEAT, STORAGE, INSULATED | 1998 | Provisional |
| DA9 | P, ARM REST, FRT SEAT, RH | 1999 | GM sourced |
| DAA | Sunshade Vinyl | — | Reference |
| DAB | Sunshade Cloth | — | Reference |
| DAC | Sunshade Extension | — | Reference |
| DAP | Mirror O/s LH & Rh, Manual Cont, Black | — | Reference |
| DAR | Arm Rest Front Seat, Driver & Passenger | — | Reference |
| DAS | FAMILY CODE, DIGITAL AUDIO SYSTEM, 121 | — | Provisional |
| DAY | P, PLT, R, PLANT CODE, MORAINE, OH, USA this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| DAZ | Mirror O/s LH & Rh, Remote Control, Electric, Heated LT Sensitive LH Side Only, Ece | — | Reference |
| DB0 | P, ARM REST, FRT SEAT, CENTER, UPPER TRIM, CLOTH, 10517 E, 0 | — | Provisional |
| DB1 | P, ARM REST, FRT SEAT, CENTER, UPPER TRIM, VINYL, 10517 E, 0 | — | Provisional |
| DB2 | P, RVM, R, MIRROR I/S R/V, TILT, COMPASS, O/S TEMP DISPLAY | 1992 | GM sourced |
| DB3 | P, SUNSHADE, RR WINDOW, ELECTRIC | 1998 | GM sourced |
| DB4 | P, ARM REST, FRT SEAT, CENTER, UPPER TRIM, LEATHER, 10517 E, 0 | — | GM sourced |
| DB5 | P, MIR, M, MIRROR O/S, LH & RH, WIDE LOAD, INTEGRAL ARM, 315 | — | GM sourced |
| DB6 | P, MIR, M, MIRROR O/S, LH & RH, WIDE LOAD, ELEC REMOTE CONTROL, LIGHTED, HEATED, INTEGRAL ARM, 315 | — | GM sourced |
| DB7 | P, MIR, M, MIRROR O/S, LH & RH, WIDE LOAD, LIGHTED, INTEGRAL ARM, 315 | — | GM sourced |
| DB8 | P, MIR, M, MIRROR O/S, LH & RH, WIDE LOAD, HEATED, INTEGRAL ARM, 315 | — | GM sourced |
| DB9 | P, PANEL, VALANCE, FRT BUMPER | 1988 | GM sourced |
| DBA | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, HEATED, FLAT/DR, CONVEX/PASS, AUX WFOV, 21017 | — | Provisional |
| DBB | P, MIR, M, MIRROR O/S, LH & RH, MANUAL CONTROL, FLAT/DR, CONVEX/PASS, AUXWFOV, 21017 | — | Provisional |
| DBC | P, MIR, M, MIRROR O/S, LH & RH, WIDE LOAD, MANUAL CONTROL, AUX WFOV, 11128 | — | Provisional |
| DBD | P, MIR, M, MIRROR O/S, LH & RH, SHORT ARM, MANUAL CONTROL, AUX WFOV, 11128 | — | Provisional |
| DBE | P, MIR, M, MIRROR O/S, LH & RH, WIDE LOAD, REMOTE CONTROL, ELECTRIC, HEATED, AUX WFOV, 11128 | — | Provisional |
| DBF | P, MIR, M, MIRROR O/S, LH & RH, SHORT ARM, REMOTE CONTROL, ELECTRIC, HEATED, AUX WFOV, 11128 | — | Provisional |
| DBG | Mirrors, outside power-adjustable vertical trailering with heated upper glass, lower convex | 2026 | GM sourced |
| DBH | Mirror O/s Rh, Manual Control, Manual Folding | — | Reference |
| DBI | Mirror O/s LH & Rh, Manual Control, Manual Folding | — | Reference |
| DBK | Mirror O/s Rh, Remote Control, Electric, Manual Folding | — | Reference |
| DBM | Mirror O/s LH & Rh, Remote Control, Electric, Power Folding | — | Reference |
| DBO | Mirror O/s Rh, Remote Control, Manual Folding | — | Reference |
| DBP | Mirror I/s FRT Van Sunshade, Rh, W/o Cover | — | Reference |
| DBQ | Mirror I/s FRT Van Sunshade, Lh, W/o Cover | — | Reference |
| DBR | Sunshade Windshield, Rh, W/mirror | — | Reference |
| DBS | Mirrors,outside,lh,remote Control,electric,manual Folding | — | Reference |
| DBU | Console FRT Compt, Floor, Arm Rest Sliding | — | Reference |
| DBW | Mirror I/s R/v Tilt, Veh Communication Sys Control | — | Reference |
| DBX | Mirror I/s R/v LT Sensitive, Veh Communication Sys Control | — | Reference |
| DBZ | Handle O/s, Lid/tailgate, Satin Chrome | — | Reference |
| DC0 | P, MIR, M, MIRROR O/S, LH, REMOTE CONTROL, MAN, RH REMOTE CONTROL, ELEC, COLOR this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| DC1 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, HEATED, LT SENSITIVE, POWER FOLDING, COLOR this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| DC2 | P, RVM, R, MIRROR I/S R/V, TILT, DUAL READING LAMPS, COMPASS, O/S TEMP, DISPLAY this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| DC3 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, HEATED, LT SENSITIVE, MANUAL FOLDING, COLOR. | 1998 | GM sourced |
| DC4 | P, RVM, R, MIRROR I/S R/V, TILT, DUAL READING LAMPS | 1990 | GM sourced |
| DC5 | P, MIRROR I/S RR VANITY, HEADLINING, ILLUM | 1997 | GM sourced |
| DC6 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, HEATED,, FOLDING, COLOR (DO NOT USE AFTER 2004 MY USE DE5), 126 E, 4 this code has more than one documented meaning — filter by year | — | GM sourced |
| DC7 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, BREAKAWAY, COLOR this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| DC8 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, MANUAL FOLDING, BLACK this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| DC9 | P, MIR, M, MIRROR O/S, LH & RH, WIDE LOAD, REMOTE CONTROL, ELECTRIC, HEATED, STAINLESS STEEL, W/CLEARANCE LAMPS this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| DCA | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, HEATED,, ILLUMINATED, COLOR, 10521 | — | Provisional |
| DCB | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, HEATED,, MAN FLDG, TURN SIG IND, ILLUM, COLOR, 20424 | — | Provisional |
| DCH | Console, floor, power-sliding center | 2026 | GM sourced |
| DCK | Console refrigerator, freezer mode | 2026 | GM sourced |
| DCP | Processing Directions & Connections Service Package | — | Reference |
| DCS | Mirror O/s LH & Rh, Remote Control, Electric, Heated, Brushed Chrome | — | Reference |
| DD0 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, HEATED,, LT SENSITIVE | 1996 | GM sourced |
| DD1 | P, RVM, R, MIRROR I/S R/V, TILT, DUAL READING LAMPS, COMPASS this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| DD2 | P, MRI, R, MIRROR I/S FRT VAN, SUNSHADE, COVERED | 1998 | GM sourced |
| DD3 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, FOLDING, COLOR this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| DD4 | P, RVM, R, MIRROR I/S R/V, COMPASS, 21002 | — | GM sourced |
| DD5 | P, RVM, R, MIRROR I/S R/V, COMPASS, O/S TEMP DISPLAY, 21002 | — | GM sourced |
| DD6 | P, RVM, R, MIRROR I/S R/V, LT SENSITIVE, DUAL READING LAMPS this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| DD7 | P, RVM, R, MIRROR I/S R/V, LT SENSITIVE, COMPASS | 1991 | GM sourced |
| DD8 | Mirror, inside rearview auto-dimming this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| DD9 | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, BREAKAWAY, COLOR this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| DDA | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, BREAKAWAY | 1998 | Provisional |
| DDB | Mirror I/s FRT Van Sunshade, Rh, Covered | — | Reference |
| DDC | P, RVM, R, MIRROR I/S R/V, LT SENSITIVE, COMPASS, O/S TEMP DISPLAY,, VEH COMMUNICATION SYS CONT, DUAL READING LAMPS, 10517 | — | Provisional |
| DDD | P, MIR, M, MIRROR O/S, LH & RH, REMOTE CONTROL, ELECTRIC, TURN SIG IND | 1999 | 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.