← All owner tools · Decode your own SPID label with the GM RPO decoder
| 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 401–500 of 508 codes beginning with 2. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| 2IU | P, CCU, M, PRIMARY COLOR, EXTERIOR, MANDARIN, MICA (OPEL) | 1999 | Provisional |
| 2IV | P, FIN, R, FLEET INCENTIVE, VALLEY ANTENNA & SATELLITE (TRK CKGST), 10201 | — | Provisional |
| 2IW | P, FIN, R, FLEET INCENTIVE, WHITE CAP INDUSTRIES (TRK CKGMLST), 410 | — | Provisional |
| 2IX | P, FIN, R, FLEET INCENTIVE, BAXTER HEATHCARE (B/H/U/W-TRK CKST), 20801 | — | Provisional |
| 2IY | P, FIN, R, FLEET INCENTIVE, YELLOW CAB/COACH (W-TRK GML), 10608 | — | Provisional |
| 2IZ | P, FIN, R, FLEET INCENTIVE, EMPIRE (TRK CK), 21108 | — | Provisional |
| 2J0 | P, FLC, R, COVERING FLOOR, INNER, STRIPED | 1997 | Provisional |
| 2J1 | P, FLC, R, COVERING FLOOR, INNER, STANDARD | 1997 | GM sourced |
| 2J3 | P, FLC, R, COVERING FLOOR, INNER, CUSTOM | 1998 | Provisional |
| 2J4 | P, FLC, R, COVERING FLOOR, INNER, SUPER LUXURY, BEIGE | 1997 | Provisional |
| 2J5 | P, FLC, R, COVERING FLOOR, INNER, SUPER DELUXE | 1997 | Provisional |
| 2J6 | P, FLC, R, COVERING FLOOR, INNER, ULTRA DELUXE | 1997 | Provisional |
| 2J7 | P, FLC, R, COVERING FLOOR, INNER, UPLEVEL, VAR 1 | 1998 | Provisional |
| 2J8 | P, FLC, R, COVERING FLOOR, INNER, MIDLEVEL, VAR 1 | 1998 | Provisional |
| 2J9 | P, FLC, R, COVERING FLOOR, INNER, SPORT, VAR 1 | 1998 | Provisional |
| 2JA | P, FIN, R, FLEET INCENTIVE, AGRILINK (U/W-TRK CK), 510 | — | Provisional |
| 2JB | P, FIN, R, FLEET INCENTIVE, TEAM, INC. (N/W-TRK CKGST), 20801 this code has more than one documented meaning — filter by year | — | GM sourced |
| 2JC | P, FIN, R, FLEET INCENTIVE, CHESAPEAKE ENERGY (TRK CK), 515 | — | Provisional |
| 2JD | P, FIN, R, FLEET INCENTIVE, SMC PNEUMATICS (B/C/H/U/W-TRK ST), 11105 | — | Provisional |
| 2JE | P, FIN, R, FLEET INCENTIVE, MENARD INC. (N-TRK CK), 11001 | — | Provisional |
| 2JF | P, FIN, R, FLEET INCENTIVE, BESCO GRAPHIC SYSTEM (C/G/H/K/U/V/W-TRK GML), 517 | — | Provisional |
| 2JG | P, FIN, R, FLEET INCENTIVE, BEST BUY STORES LP (U/W-TRK GST), 21104 | — | Provisional |
| 2JH | P, FIN, R, FLEET INCENTIVE, HEATING OIL PARTNERS (TRK-G), 606 | — | Provisional |
| 2JJ | P, FIN, R, FLEET INCENTIVE, CLARINS USA, INC (B/J/N/S/W-TRK CKST), 20820 | — | Provisional |
| 2JK | P, FIN, R, FLEET INCENTIVE, LYONDELL CHEMICALS (H/W-TRK CKG), 606 | — | Provisional |
| 2JL | P, FIN, R, FLEET INCENTIVE, LEVITON (B/C/G/H/N/U/W-TRK ST), 10917 | — | Provisional |
| 2JM | P, FIN, R, FLEET INCENTIVE, CIBA SPECIALTY CHEMICALS (H/N/U/W-TRK CKST), 20611 | — | Provisional |
| 2JN | P, FIN, R, FLEET INCENTIVE, CENTRAL STEEL AND WIRE (C/H/K/U-TRK CKGST), 10621 | — | Provisional |
| 2JO | P, FIN, R, FLEET INCENTIVE, OCE PRINTING SYSTEMS (N/W), 10608 | — | Provisional |
| 2JP | P, FIN, R, FLEET INCENTIVE, B. BRAUN MEDICAL (G/H/J/K/N/U/W-TRK MLST), 811 | — | Provisional |
| 2JQ | P, FIN, R, FLEET INCENTIVE, CLASSIC COMMUNICATIONS (TRK CK), 11214 | — | Provisional |
| 2JS | P, FIN, R, FLEET INCENTIVE, STEWART ENTERPRISES INC. (C/H/J/K/U-TRK CKGML), 11004 | — | Provisional |
| 2JT | P, FIN, R, FLEET INCENTIVE, SENSIENT TECHNOLOGIES CO. (C/K/W-TRK CK), 10807 | — | Provisional |
| 2JU | P, CCU, M, PRIMARY COLOR, EXTERIOR, CALYPSO RED, (OPEL) | 1999 | Provisional |
| 2JV | P, FIN, R, FLEET INCENTIVE, CHIQUITA PROCESSED FOODS LLC (G/H/N/W-TRK CKG), 630 | — | Provisional |
| 2K1 | P, FIN, R, FLEET INCENTIVE, COURTESY RENT A CAR (J/K/N/W-TRK CKGMLST), 829 | — | Provisional |
| 2K2 | P, FIN, R, FLEET INCENTIVE, FIRST ENERGY (C/H/J/W-TRK CKGMLST), 714 | — | Provisional |
| 2K3 | P, FIN, R, FLEET INCENTIVE, GOLD KIST, INC. (H/W-TRK CKG), 20801 | — | Provisional |
| 2K4 | P, FIN, R, FLEET INCENTIVE, FLORIDA FARM BUREAU (C/H/W-TRK CKGMLST), 20912 | — | Provisional |
| 2K5 | P, FIN, R, FLEET INCENTIVE, SEMCO ENERGY (J/U-TRK CKGMLST), 11004 | — | Provisional |
| 2K6 | P, FIN, R, FLEET INCENTIVE, FLORIDA CRYSTALS (TRK CKGST), 20130 | — | GM sourced |
| 2K7 | P, FIN, R, FLEET INCENTIVE, WILLIAMS (N/W-TRK CKGMLST), 20130 | — | Provisional |
| 2K8 | P, FIN, R, FLEET INCENTIVE, BRINKMAN GROUP LIMITED (TRK CKG), 21016 | — | Provisional |
| 2K9 | P, FIN, R, FLEET INCENTIVE, W.C. EQUIPMENT (W-TRK CKST), 20812 | — | Provisional |
| 2KA | P, FIN, R, FLEET INCENTIVE, KONICA GRAPHIC IMAGING INTL (C/N/U/W-TRK ST), 503 | — | Provisional |
| 2KB | P, FIN, R, FLEET INCENTIVE, BROWN-FORMAN BEVERAGES (G/H/U/W-TRK CKGMLSTJ), 21104 | — | Provisional |
| 2KC | P, FIN, R, FLEET INCENTIVE, AVERITT EXPRESS (W-TRK CKST), 11031 | — | Provisional |
| 2KD | P, FIN, R, FLEET INCENTIVE, TRUMBULL CORP (N/W-TRK CKST), 11001 | — | Provisional |
| 2KE | P, FIN, R, FLEET INCENTIVE, CLARK CONSTRUCTION GROUP, INC. (H/N/W-TRK CKST), 10330 | — | Provisional |
| 2KF | P, FIN, R, FLEET INCENTIVE, AUTOZONE (N/U/W-TRK CKGST), 10608 | — | Provisional |
| 2KG | P, FIN, R, FLEET INCENTIVE, CENTIMARK (W-TRK CKGST), 10827 | — | Provisional |
| 2KH | P, FIN, R, FLEET INCENTIVE, COOPERHEAT MQS, INC. (TRK CKGMLST), 10917 | — | Provisional |
| 2KI | P, FIN, R, FLEET INCENTIVE, GOODRICH CORPORATION (H/K/U/W-TRK CKGST), 10904 | — | Provisional |
| 2KJ | P, FIN, R, FLEET INCENTIVE, HANDLEMAN CO (J/N), 20801 | — | Provisional |
| 2KK | P, FIN, R, FLEET INCENTIVE, MARSHALL ERDMAN & ASSOC. (H/N/U/W-TRK CKGML), 714 | — | Provisional |
| 2KL | P, FIN, R, FLEET INCENTIVE, BUDGET RENT A CAR OF MARIETTA (J/N/W-TRK CKGST), 20801 | — | Provisional |
| 2KM | P, FIN, R, FLEET INCENTIVE, AMERICAN AGRISURANCE, INC. (H/W-TRK CKST), 20912 | — | Provisional |
| 2KN | P, FIN, R, FLEET INCENTIVE, ACE TAXI SERVICE (K/W-TRK GML), 714 | — | Provisional |
| 2KO | P, FIN, R, FLEET INCENTIVE, CAMERON (W-TRK CK), 714 | — | Provisional |
| 2KU | P, CCU, M, PRIMARY COLOR, EXTERIOR, EUROPE BLUE,MICA (OPEL), 524 E, 0, 0, A | — | Provisional |
| 2LS | Package LS Option 2 | — | Reference |
| 2LT | Package LT Option 2 | — | Reference |
| 2LU | P, CCU, M, PRIMARY COLOR, EXTERIOR, BRITISH RACING GREEN, (OPEL) | 1999 | Provisional |
| 2LZ | Package LZ Option 2 | — | Reference |
| 2MU | P, CCU, M, PRIMARY COLOR, EXTERIOR, DOLPHIN GRAY, MICA, (OPEL), 313 E, 0, 0, A | — | Provisional |
| 2MW | Tire Front P195/75r14 BW R/pe ST TL Als 92s | — | Reference |
| 2NP | Tire Front 8.00r19.50 Michelin,tbls Sbr BW | — | Reference |
| 2NU | P, CCU, M, PRIMARY COLOR, EXTERIOR, RABIATA RED, MICA, (OPEL) | 1999 | Provisional |
| 2OU | P, CCU, M, PRIMARY COLOR, EXTERIOR, SILVER MET, 107 E, 0, 0, A | — | Provisional |
| 2PG | Tire Front 7.50-16d (tube) DN Off Rd-ny BW | — | Reference |
| 2PK | Tire 7.50-16e(tube) Hwy NY | — | Reference |
| 2PU | P, CCU, M, PRIMARY COLOR, EXTERIOR, YELLOW, 107 E, 0, 0, A | — | Provisional |
| 2QT | Tire Front P235/70r15 Rwl R/pe ST TL Al3 102s | — | Reference |
| 2QU | P, CCU, M, PRIMARY COLOR, EXTERIOR, BLACK, 125 E, 0, 0, A | — | GM sourced |
| 2QY | Tire Front 8.00r19.5/e BW R/st TL Hwy | — | Reference |
| 2RS | Tire Front 8.00-16.5 D Polyester Hwy Bsw (harmonic Marked) | — | Reference |
| 2RU | Tire 8.75r16.5d Hwy B/w | — | Reference |
| 2SA | Package SL Option 1 | — | Reference |
| 2SB | Package SL Option 2 | — | Reference |
| 2SC | Package SL Option 3 | — | Reference |
| 2SD | Package SL Option 4 | — | Reference |
| 2SS | Package SS Option 2 | — | Reference |
| 2SU | P, CCU, M, PRIMARY COLOR, EXTERIOR, COLORADO WHITE, OPEL (02), 411 E, 0, 0, A | — | Provisional |
| 2TA | C, FTR, M, TIRE FRONT, 225/70R19.5/F BW R/ST TL OOR (SEO) this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| 2TD | C, FTR, M, TIRE FRONT, 225/70R19.5/F BW R/ST TL ALS (SEO) this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| 2TE | Tire Front 8.75x16.5d Tbls Hwy B/w (harmonic Marked) | — | Reference |
| 2TN | C, FTR, M, TIRE FRONT, 225/70R19.5/F BW R/ST ST TL HWY (SEO) this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| 2TT | Tire Front 8.75-16.5 E Tbls Hwy Poly B/w | — | Reference |
| 2TU | P, FTR, M, TIRE FRONT, 8.00R19.5/F BW R/PE ST TL HWY (MICHELIN XZA) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| 2TV | Tire Front 8.00r-19.5 E Radial R/b Sbr Hwy Tbls B/w Goodyear Wrangler | — | Reference |
| 2TX | C, FTR, M, TIRE FRONT, 8.00R19.5/F BL R/PE ST TL HWY (SEO) this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| 2TZ | Tire Front 8.00rx19.5d Tbls BW Hwy Sbr Goodyear | — | Reference |
| 2UU | P, CCU, M, PRIMARY COLOR, EXTERIOR, CARBON BLACK (OPEL) (02), 309 E, 0, 0, A | — | Provisional |
| 2VC | Tire Front 8.00rx16.5e Tbls Hwy BW Sbr Goodyear | — | Reference |
| 2VH | Tire Front P225/75r15 Ws2/gold R/pe ST TL Als | — | Reference |
| 2VK | C, FTR, M, TIRE FRONT, LT225/75R16/C BL R/PE ST TL ALS (SEO) this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| 2VL | Package VL Option 2 | — | Reference |
| 2VU | P, CCU, M, PRIMARY COLOR, EXTERIOR, CAPRIE YELLOW, MICA (OPEL) (02), 315 E, 0, 0, A | — | Provisional |
| 2WG | Tire Front 7.50r-16d Hwy Tbls Bw, Michelin | — | Reference |
| 2WT | Package WT Option 2 | — | 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.