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 1–100 of 746 codes beginning with C. One meaning shown per code — the best-sourced one we hold. Search above for the rest.

CodeMeaningYearsSourcing
C01 P, ORNAMENTATION, EXTR, EMBLEM, BODY, VAR 2 this code has more than one documented meaning — filter by year 1998 GM sourced
C02 P, EQUIPMENT, SUBARU, 926 E, 0 — Provisional
C03 P, RDC, R, ROOF, SUN, STEEL SLIDING, MANUAL 1983 GM sourced
C04 P, TPS, R, ROOF COVERING, VINYL, PADDED, RR this code has more than one documented meaning — filter by year 1988 GM sourced
C05 P, RDC, R, ROOF, CONVERTIBLE FOLDING 1984 GM sourced
C06 P, RDC, R, ROOF, SUN, FIXED, GLASS 1999 Provisional
C07 P, RDC, R, ROOF, SUN, SLIDING, ELECTRIC, GLASS, TWIN SPOILER 1999 Provisional
C08 Kit Handicapped Driver, Handle — Reference
C09 P, TPS, R, ROOF COVERING, VINYL, PADDED, FULL, INTEGRAL PAD this code has more than one documented meaning — filter by year 1988 GM sourced
C0A P, FIN, R, FLEET INCENTIVE, ORION ENTERPRISES (N/W), 20816 — Provisional
C0B P, FIN, R, FLEET INCENTIVE, MINI MED (B/C/G/H/N/K/U/W-TRK CKGJMLST), 10917 — Provisional
C0C P, FIN, R, FLEET INCENTIVE, WESTERN GAS (W-TRK CKST), 10815 — Provisional
C0D P, FIN, R, FLEET INCENTIVE, DUNN-EDWARDS PAINTS (C/N/U/W-TRK CK), 20801 — Provisional
C0E P, FIN, R, FLEET INCENTIVE, 21ST CENTURY INSURANCE (H/N), 928 — Provisional
C0F P, FIN, R, FLEET INCENTIVE, COR THERAPEUTICS (W), 928 — Provisional
C0G P, FIN, R, FLEET INCENTIVE, MCKINSTRY CO. (D/N-TRK CKGMLST), 20508 — Provisional
C0H P, FIN, R, FLEET INCENTIVE, AVI FOODSYSTEMS (H/J/K/W-TRK ML), 10807 — Provisional
C0I Kit Handicapped Driver, LH — Reference
C0J P, FIN, R, FLEET INCENTIVE, SISTERS OF ST. JOSEPH (J/N/W), 20416 — Provisional
C0K P, FIN, R, FLEET INCENTIVE, WIESE PLANNING & ENGINEERING, INC. (H/W-TRK CKG), 1004 — Provisional
C0L P, FIN, R, FLEET INCENTIVE, TIME WARNER CABLE OF SAN ANTONIO (G/K/N/U/W-TRK CKGMLST), 10621 — Provisional
C0M P, FIN, R, FLEET INCENTIVE, MCKINSTRY COMPANY (H-TRK CKGST), 10119 — Provisional
C0N P, FIN, R, FLEET INCENTIVE, GOOSE CREEK MOTORS (J/N/W-TRK CKMLST), 20912 — Provisional
C0P P, FIN, R, FLEET INCENTIVE, PRAIRIE FARMS (H/U/W-TRK CKGML), 20912 — GM sourced
C0Q Kit Handicapped Driver, Steering — Reference
C0R Fleet Incentive Boise-cascade Corp. (trk Ckst) — Reference
C0S P, FIN, R, FLEET INCENTIVE, SPACELABS (K/W-TRK G), 1010 — Provisional
C0T P, FIN, R, FLEET INCENTIVE, BRUNSWICK (C/D/H/K/N/U/W-TRK CKGMLST), 20801 — GM sourced
C0U P, FIN, R, FLEET INCENTIVE, WELLS DAIRY CO. (U/W-TRK ML), 11023 — Provisional
C0V P, FIN, R, FLEET INCENTIVE, VALENT USA CORP. (TRK CKST), 1005 — Provisional
C0W P, FIN, R, FLEET INCENTIVE, WASHINGTON GROUP INT'L (N/U/W-TRK CKGMLST), 10208 — Provisional
C0X Kit Handicapped Driver, Accel — Reference
C0Y P, FIN, R, FLEET INCENTIVE, GREAT PLAINS LOCATING SERVICE (W-TRK MLST), 11023 — Provisional
C0Z P, FIN, R, FLEET INCENTIVE, AIR CONDITIONING CO. (TRK CKGMLST), 10815 — Provisional
C10 P, TPS, R, ROOF COVERING, VINYL, PADDED, RR, SPECIAL 1988 GM sourced
C11 P, WASHER, NOZZLES, HEATED, WIPER SYS, HEADLAMP, 1120 E, 0 — Provisional
C12 P, WASHER, NOZZLES, HEATED, RR WINDOW, 1121 E, 0 — Provisional
C13 P, WIPER SYSTEM, WINDSHIELD, INTERMITTENT (GMB USAGE FOR 1998 & 1999 MODEL YRS ONLY) 1998 GM sourced
C14 P, WIPER SYSTEM, RR WINDOW, PULSE, MOISTURE SENSITIVE, 1106 E, 0 — GM sourced
C16 Wiper System,rr Window,intermittent,var 2 — Reference
C17 P, RDC, R, ROOF, RAISED - FULL LENGTH, 209 — Provisional
C18 P, ARM & BLADE, WSW this code has more than one documented meaning — filter by year 1998 GM sourced
C1A Ornamentation Intr I/p Tray, V DK Pewter — Reference
C1B Ornamentation Intr I/p Tray, Jade Black — Reference
C1C Ornamentation Intr I/p Tray, Super Red — Reference
C1D Ornamentation Intr I/p Tray, Moroccan Blue — Reference
C1E Ornamentation Intr I/p Tray, Switchblade Silver Met — Reference
C1F Accent Package(canadian) — Reference
C1G Ornamentation Intr, Chrome Chevron — Reference
C1J P, INVOICE, ADJUSTMENT 1988 Provisional
C1L P, POE, R, PORT OF ENTRY, NORTHWEST 1986 Provisional
C1M P, POE, R, PORT OF ENTRY, SOUTHWEST 1986 Provisional
C1N P, POE, R, PORT OF ENTRY, NORTHEAST 1986 Provisional
C1O Ornamentation Intr I/p Pad, LT Neutral — Reference
C1P P, POE, R, PORT OF ENTRY, SOUTHEAST 1986 Provisional
C1Q Ornamentation Intr I/p Tray, Pearl Blue — Reference
C1R Ornamentation Intr I/p Pad, Jet Black — Reference
C1S Ornamentation Intr I/p Pad, Spice Red — Reference
C1T Ornamentation Intr I/p Pad, Ocean — Reference
C1U P, FIN, R, FLEET INCENTIVE, ENTERPRISE RENT-A-CAR (B/C/D/E/F/H/J/K/L/N/U/W TRK CKGMLPST), 20409 — Provisional
C1V Ornamentation Intr, I/p, Metallic — Reference
C1W P, FIN, R, FLEET INCENTIVE, DOLLAR RENT-A-CAR (A/B/C/D/E/H/J/K/L/N/U/W-TRK, CKGMLST), 20409 — Provisional
C1X Ornamentation Intr,i/p,center,metallic Paint — Reference
C1Z Ornamentation Intr I/p Pad, LT Titanium — Reference
C20 P, PUMP, DIESEL FUEL, ADDITIVE, 20218 E, 0 — Provisional
C21 P, WIPER SYSTEM, WINDSHIELD, RR WINDOW, INTERMITTENT, REVERSE ACTIVATED, 20416 E, 5 — GM sourced
C22 P, VENTILATION SYSTEM, RECIRCULATING AIR this code has more than one documented meaning — filter by year 1999 GM sourced
C23 P, WIPER SYSTEM, WINDSHIELD, PULSE, NON-VARIABLE DELAY 1998 Provisional
C24 P, HTR, M, HVAC SYSTEM, AIR CONDITIONER, FRT & RR ELECTRONIC CONTROLS, QUAD ZONE, 20219 — Provisional
C25 Wiper, rear intermittent this code has more than one documented meaning — filter by year 2026 GM sourced
C26 P, HVAC SYSTEM RR, AIR CONDITIONER & HEATER, MANUAL CONTROLS, 926 — Provisional
C27 P, TPS, R, ROOF COVERING, SOFT TRIM this code has more than one documented meaning — filter by year 1988 GM sourced
C28 P, PUMP, COOLANT, AUXILLARY 1999 GM sourced
C29 P, DEFLECTOR, AIR-DELETE 1998 Provisional
C2B Lamp Intr, FRT Flr Illumination — Reference
C2E P, FIN, R, FLEET INCENTIVE, DIGITAL EQUIPMENT (B/C/H/J/K/L/N/U/W TRK-CKGMLPST), 10205 — Provisional
C2G Lamp Intr, Ignition Lock, Illumination — Reference
C2H P, POE, R, PORT OF ENTRY, FREMONT, CALIFORNIA, USA, 10312 P, 1 1, A — GM sourced
C2J Sales Santiago Teal, Special Edition I — Reference
C2L P, RDC, R, ROOF, PACKAGE, DUAL REMOVABLE 1990 GM sourced
C2M Roof Package, Dual Removable, Var 1 — Reference
C2N Sales Santiago Teal, Special Edition II — Reference
C2Q Roof Package, Dual Removable, Var 2 — Reference
C2T Decal Stripe, Orange — Reference
C2U Decal Stripe, Silver — Reference
C2X Leader,value(express)(merchandising Option) this code has more than one documented meaning — filter by year — Reference
C2Y GVW Rating 4,240 Lbs. — Reference
C2Z Roof Hatch, Removable, Carbon Fiber, Var 1 — Reference
C30 P, HEATER, FUEL FILTER 1994 GM sourced
C31 P, HEATER, HEATING/DEFROSTER SYSTEM, REINFORCED, FUEL 1996 GM sourced
C32 P, HEATER, HEATING/DEFROSTER SYSTEM, REINFORCED, ELECTRIC 1996 GM sourced
C33 P, HEATER, RESIDUAL HEAT 1998 Provisional
C34 P, HTR, M, HVAC SYSTEM, AIR CONDITIONER HEATER COMBINATION this code has more than one documented meaning — filter by year 1988 GM sourced
C35 Heater,rear Compartment this code has more than one documented meaning — filter by year — Reference
C36 P, HEATER, AUXILIARY this code has more than one documented meaning — filter by year 1983 GM sourced
C37 P, HEATER, SEAT, DRIVER 1998 GM sourced
C38 P, HEATER, SEAT, PASS this code has more than one documented meaning — filter by year 1997 GM sourced
C39 P, HTR, M, HVAC SYSTEM, OUTSIDE AIR, WITH FAN 1996 GM sourced
C3A Heater air system, heat/defrost, 1.5 kW this code has more than one documented meaning — filter by year 2026 GM sourced
C3B P, RDC, R, ROOF, SUN, GLASS, SLIDING, ELEC, TRANSPARENT PLASTIC FIXED, 10824 E, 4 — 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