← 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 1–100 of 327 codes beginning with 3. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| 300 | TRIM COMBINATION,CLOTH, MED DK ADRIATIC BLUE (0) | — | Provisional |
| 301 | SECONDARY COLOR, EXTERIOR ATLANTIC BLUE MET (94) | — | Provisional |
| 302 | P, TRM, M, TRIM COMBINATION, LEATHER, MED DK ADRIATIC BLUE (2) (96) | 1996 | GM sourced |
| 303 | P, TRM, M, TRIM COMBINATION, LEATHER, MED DK ADRIATIC BLUE (3) (96) | 1996 | GM sourced |
| 304 | P, TRM, M, TRIM COMBINATION, LEATHER, MED DK ADRIATIC BLUE (4) (96) | 1996 | Provisional |
| 305 | P, TRM, M, TRIM COMBINATION, LEATHER, MED DK ADRIATIC BLUE (5) (96) | 1996 | GM sourced |
| 306 | P, TRM, M, TRIM COMBINATION, LEATHER, MED DK ADRIATIC BLUE (6) (96) | 1996 | GM sourced |
| 308 | P, TRM, M, TRIM COMBINATION, CLOTH, ADRIATIC BLUE (8) (96) | 1996 | GM sourced |
| 30A | P, STC, R, STRIPE COLOR, ACCENT, LT EMERALD (94) | 1992 | GM sourced |
| 30B | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK ADRIATIC BLUE (B) (96) | 1996 | GM sourced |
| 30C | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK ADRIATIC BLUE (C) (96) | 1996 | GM sourced |
| 30D | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK ADRIATIC BLUE (D) (96) | 1996 | GM sourced |
| 30E | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK ADRIATIC BLUE (E) (96) | 1996 | GM sourced |
| 30G | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK ADRIATIC BLUE (G) (96) | 1996 | GM sourced |
| 30H | P, TRM, M, TRIM COMBINATION, CLOTH, MED ADRIATIC BLUE (H) (96) | 1996 | GM sourced |
| 30I | P, CCM, M, INTERIOR TRIM, MED DK ADRIATIC BLUE (I) (96) this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| 30J | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK ADRIATIC BLUE (J) (96) | 1996 | GM sourced |
| 30L | P, CCL, R, SECONDARY COLOR, EXTERIOR, MAMBA GREEN (00) (OPEL) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 30N | P, TRM, M, TRIM COMBINATION, VINYL, MED DK ADRIATIC BLUE (N) (96) | 1996 | GM sourced |
| 30P | P, WHC, R, WHEEL COLOR, MED ADRIATIC BLUE (94) | 1991 | GM sourced |
| 30Q | P, MCI, R, MOLDING COLOR, MED ADRIATIC BLUE (93) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| 30T | P, VRC, R, TOP COLOR, MED ADRIATIC BLUE (94) | 1991 | GM sourced |
| 30U | P, CCU, M, PRIMARY COLOR, EXTERIOR, ATLANTIC BLUE MET (02), 20419 this code has more than one documented meaning — filter by year | — | GM sourced |
| 312 | P, TRM, M, TRIM COMBINATION, LEATHER, LT CASHMERE (2) (04), 10905 E, 4 | — | Provisional |
| 313 | P, TRM, M, TRIM COMBINATION, LEATHER, LT CASHMERE (3) (04), 10905 E, 4 | — | Provisional |
| 316 | P, TRM, M, TRIM COMBINATION, LEATHER, LT CASHMERE (6) (04), 10905 E, 4 | — | Provisional |
| 319 | P, BLT, M, SEAT BELT COLOR, CASHMERE (02) (OPEL), 20326 E, 0 | — | Provisional |
| 31A | P, STC, R, STRIPE COLOR, ACCENT, TWO TONE, LT SILVER/DK INDIGO (97) this code has more than one documented meaning — filter by year | 1995 | GM sourced |
| 31B | P, TRM, M, TRIM COMBINATION, CLOTH, LT CASHMERE (B) (04), 10919 E, 4 | — | GM sourced |
| 31C | P, TRM, M, TRIM COMBINATION, CLOTH, LT CASHMERE (C) (05), 20826 E, 3 | — | GM sourced |
| 31D | Trim Combination Cloth, Ebony/lt Cashmere | — | Reference |
| 31F | P, SWC, R, STEERING WHEEL COLOR, MATT CHROME, 20325 E, 0 | — | Provisional |
| 31H | Trim Combination Cloth, LT Cashmere (h) (06) | — | Reference |
| 31I | P, CCM, M, INTERIOR TRIM, LT CASHMERE (04), 10730 | — | GM sourced |
| 31J | Trim Combination Cloth, LT Cashmere (j) (06) | — | Reference |
| 31L | P, CCL, R, SECONDARY COLOR, EXTERIOR, ALMIRANTE BLUE PEARLESCENT (BRAZIL) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 31P | P, WHC, R, WHEEL COLOR, MED TEAL MET (94) | 1991 | Provisional |
| 31Q | P, MCI, R, MOLDING COLOR, FERNMIST GREEN MT (99) this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| 31T | Top Color Carbon Flash (501q) | — | Reference |
| 31U | P, CCU, M, PRIMARY COLOR, EXTERIOR, FERNMIST GREEN MET (02), 20419 this code has more than one documented meaning — filter by year | — | GM sourced |
| 31X | P, TLV, R, TRIM COLOR SEAT, COLOR TITANIUM / CHARCOAL (OPEL), 20517 E, 0 | — | Provisional |
| 322 | P, TRM, M, TRIM COMBINATION, LEATHER, MED DK CASHMERE (2) (04), 10919 E, 1 | — | Provisional |
| 323 | P, TRM, M, TRIM COMBINATION, LEATHER, MED DK CASHMERE (3) (04), 10919 E, 4 | — | Provisional |
| 329 | P, BLT, M, SEAT BELT COLOR, STEEL GREY (04) (OPEL), 20906 E, 0 | — | Provisional |
| 32A | P, STC, R, STRIPE COLOR, ACCENT, LT TEAL MET (92) this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| 32B | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK CASHMERE (B) (04), 10919 E, 4 | — | GM sourced |
| 32C | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK CASHMERE (C) (04), 10919 E, 1 | — | Provisional |
| 32D | P, TRM, M, TRIM COMBINATION, CLOTH, MED DK CASHMERE (D) (04), 20116 E, 1 | — | GM sourced |
| 32F | P, SWC, R, STEERING WHEEL COLOR, STERLING, 20325 E, 0 | — | Provisional |
| 32I | P, CCM, M, INTERIOR TRIM, MED DK CASHMERE (04), 10730 | — | GM sourced |
| 32J | Trim Combination Cloth, Grenade Green (j) (06) | — | Reference |
| 32L | P, CCL, R, SECONDARY COLOR, EXTERIOR, JADE GREEN, MICA (OO) (OPEL) this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| 32Q | P, MCI, R, MOLDING COLOR, DK OTTER MET (96) | 1993 | GM sourced |
| 32T | P, VRC, R, TOP COLOR, BLUE (94) | 1993 | GM sourced |
| 32U | P, CCU, M, PRIMARY COLOR, EXTERIOR, BLUE (02), 20419 this code has more than one documented meaning — filter by year | — | GM sourced |
| 332 | P, TRM, M, TRIM COMBINATION, LEATHER, LT CASHMERE/MED DK CASHMERE (2) (04), 10802 | — | Provisional |
| 33A | Stripe Color Accent, LT Tarnished Silver Met this code has more than one documented meaning — filter by year | — | Reference |
| 33B | Trim Combination Cloth, Cashmere (b) (06) | — | Reference |
| 33C | Trim Combination Cloth, Cashmere | — | Reference |
| 33D | P, TRM, M, TRIM COMBINATION, CLOTH, LT CASHMERE/MED DK CASHMERE (D) (04), 10802 | — | GM sourced |
| 33F | P, SWC, R, STEERING WHEEL COLOR, PLATINUM, 20325 E, 0 | — | Provisional |
| 33H | P, TRM, M, TRIM COMBINATION, CLOTH, LT CASHMERE/MED DK CASHMERE (H) (04), 10802 | — | GM sourced |
| 33I | P, CCM, M, INTERIOR TRIM, LT CASHMERE/MED DK CASHMERE (I) (04), 10802 | — | GM sourced |
| 33K | Color Combination,auxiliary Top,light Driftwood | — | Reference |
| 33L | P, CCL, R, SECONDARY COLOR, EXTERIOR, BEIGE MET (93-SATURN) this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| 33P | P, WHC, R, WHEEL COLOR, LT DRIFTWOOD MET (91) | 1990 | GM sourced |
| 33Q | P, MCI, R, MOLDING COLOR, LT DRIFTWOOD MET (91) this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| 33T | P, VRC, R, TOP COLOR, LT DRIFTWOOD MET (91) | 1990 | GM sourced |
| 33U | P, CCU, M, PRIMARY COLOR, EXTERIOR, BEIGE MET (93-SATURN) this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| 342 | P, TRM, M, TRIM COMBINATION, LEATHER, MOCHA PEARL (2) (94) | 1991 | Provisional |
| 343 | P, TRM, M, TRIM COMBINATION, LEATHER, OCHRE (3) (04) (HOLDEN), 11018 E, 8 | — | Provisional |
| 344 | P, TRM, M, TRIM COMBINATION, LEATHER, MOCHA PEARL (4) (94) | 1991 | Provisional |
| 345 | P, TRM, M, TRIM COMBINATION, LEATHER, MOCHA PEARL (5) (94) | 1991 | Provisional |
| 349 | P, BLT, M, SEAT BELT COLOR, BLUE (01), 1122 E, 0 | — | Provisional |
| 34A | P, STC, R, STRIPE COLOR, ACCENT, MED BEECHWOOD (91) this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| 34B | Trim Combination Cloth, Med Cashmere I (b) (05) | — | Reference |
| 34C | Trim Combination Cloth, Med Cashmere I (c) (05) | — | Reference |
| 34D | Trim Combination Cloth, Med Cashmere (d) (06) | — | Reference |
| 34F | P, FMT, R, COVERING COLOR, FLOOR MAT, MOCHA PEARL (94) | 1991 | GM sourced |
| 34G | Steering Wheel Color Raven Sapele | — | Reference |
| 34I | P, CCM, M, INTERIOR TRIM, MOCHA PEARL (I) (94) this code has more than one documented meaning — filter by year | 1991 | Provisional |
| 34K | Color Combination,auxiliary Top,medium Mesa Brown | — | Reference |
| 34L | P, CCL, R, SECONDARY COLOR, EXTERIOR, NOCTURNO BLUE, MICA (00) (OPEL) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 34P | Wheel Color LT Mesa Brown Met (91) | — | Reference |
| 34Q | Molding Color LT Teal Met (92) | — | Reference |
| 34T | P, VRC, R, TOP COLOR, BEIGE II (95) this code has more than one documented meaning — filter by year | 1993 | GM sourced |
| 34U | P, CCU, M, PRIMARY COLOR, EXTERIOR, MED BLUE MET (02), 20419 this code has more than one documented meaning — filter by year | — | GM sourced |
| 352 | P, TRM, M, TRIM COMBINATION, LEATHER, LT CASHMERE/VERY DK PEWTER (2) (04), 10802 | — | Provisional |
| 359 | P, BLT, M, SEAT BELT COLOR, BEIGE (03), 1127 | — | Provisional |
| 35A | Stripe Color Accent, Two Tone, Vermillion/black, (91) | — | Reference |
| 35F | P, SWC, R, STEERING WHEEL COLOR, STARSILVER, 20410 E, 0 | — | Provisional |
| 35G | Trim Comb-med DK Gray (cloth) (with Yellow Accents) | — | Reference |
| 35H | Trim Comb - Black (cloth) (with Yellow Accents) | — | Reference |
| 35I | P, CCM, M, INTERIOR TRIM, LT CASHMERE/VERY DK PEWTER (I) (04), 10802 | — | GM sourced |
| 35L | P, CCL, R, SECONDARY COLOR, EXTERIOR, GREEN MT (00) this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| 35P | P, WHC, R, WHEEL COLOR, DARK TEAL (94) | 1991 | GM sourced |
| 35Q | P, MCI, R, MOLDING COLOR, GREEN MET (00) | 1997 | GM sourced |
| 35S | Stitching Color Charcoal Gray | — | Reference |
| 35T | P, VRC, R, TOP COLOR, GRAY BEIGE (05), 20813 | — | GM sourced |
| 35U | P, CCU, M, PRIMARY COLOR, EXTERIOR, DK TEAL MET (02), 20419 E, 1 this code has more than one documented meaning — filter by year | — | 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.