← 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 588 codes beginning with P. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| P01 | P, TRIM DISCS, WHEEL, VAR 1 this code has more than one documented meaning — filter by year | 1995 | GM sourced |
| P02 | P, TRIM DISCS, WHEEL, VAR 2 this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| P03 | Wheel trim, painted center caps this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| P04 | P, WHL, M, WHEEL, 17 X 6.5, ALUMINUM, SPORT, 126 E, 1 | — | GM sourced |
| P05 | P, WHL, M, WHEEL, CHROME, VAR 1 this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| P06 | Wheel trim, Chrome trim ring and chrome center caps this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| P07 | P, WHL, M, WHEEL, 15X7, ALUMINUM, CHROME PLATING, STRAIGHT SPOKE, 524 | — | GM sourced |
| P08 | P, WCV, R, COVER, WHEEL, SUPER DELUXE this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| P09 | P, WCV, R, COVER, WHEEL, POLISHED, 920 | — | GM sourced |
| P0G | GM COMMERCIAL LINK - 1 YEAR OF SERVICE | 2020 | GM sourced |
| P0H | ONSTAR CONNECT PLUS - 12 MONTHS OF SERVICE this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| P0I | ONSTAR CONNECT PLUS - 24 MONTHS OF SERVICE this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| P0J | ONSTAR PROTECT - 24 MONTHS OF SERVICE this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| P0K | ONSTAR PROTECT - 36 MONTHS OF SERVICE this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| P0L | ONSTAR PROTECT - 48 MONTHS OF SERVICE this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| P0M | ONSTAR ADDITIONAL 21 MONTHS OF ONSTAR FLEET DRIVER this code has more than one documented meaning — filter by year | 2024 | GM sourced |
| P0N | ONSTAR ADDITIONAL 33 MONTHS OF ONSTAR FLEET DRIVER this code has more than one documented meaning — filter by year | 2024 | GM sourced |
| P0O | ONSTAR ADDITIONAL 45 MONTHS OF ONSTAR FLEET DRIVER this code has more than one documented meaning — filter by year | 2024 | GM sourced |
| P0P | ONSTAR ADDITIONAL 57 MONTHS OF ONSTAR FLEET DRIVER | 2024 | GM sourced |
| P0Q | ONSTAR PROTECT - 60 MONTHS OF SERVICE | 2026 | GM sourced |
| P0R | ONSTAR ADDITIONAL 9 MONTHS OF ONSTAR FLEET DRIVER | 2024 | GM sourced |
| P0U | ONSTAR PROTECT - 12 MONTHS OF SERVICE | 2026 | GM sourced |
| P0V | ONSTAR TELEMATICS - 12 MONTHS OF SERVICE | 2026 | GM sourced |
| P0W | ONSTAR TELEMATICS - 24 MONTHS OF SERVICE | 2026 | GM sourced |
| P0X | ONSTAR TELEMATICS - 36 MONTHS OF SERVICE | 2026 | GM sourced |
| P0Y | ONSTAR TELEMATICS - 48 MONTHS OF SERVICE | 2026 | GM sourced |
| P0Z | ONSTAR TELEMATICS - 60 MONTHS OF SERVICE | 2026 | GM sourced |
| P10 | P, WCR, R, CARRIER, SPARE WHEEL this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| P11 | P, WCR, R, CARRIER, SPARE WHEEL, WITH LOCK this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| P12 | P, WHL, M, WHEEL, 17 X 9.5 FRT & 18 X 10.5 RR, CAST ALUMINUM, 1213 E, 1 | — | GM sourced |
| P13 | P, WCR, R, CARRIER, SIDE MOUNTED, SPARE WHEEL | 1997 | GM sourced |
| P14 | P, WCR, R, CARRIER, INSIDE MOUNTED, SPARE TIRE, LH this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| P15 | P, WCR, R, CARRIER, INSIDE MOUNTED, SPARE TIRE, RH this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| P16 | P, WCR, R, CARRIER, RR MOUNTED, SPARE TIRE this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| P17 | P, COVER SPARE, WHEEL this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| P18 | P, WCR, R, CARRIER, SPARE TIRE, WITH HOIST this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| P19 | P, COVER SPARE, ---DELETE | 1998 | GM sourced |
| P1R | ONSTAR ADDITIONAL 9 MONTHS OF ONSTAR ASSURANCE | 2024 | GM sourced |
| P1S | ONSTAR ADDITIONAL 21 MONTHS OF ONSTAR ASSURANCE | 2024 | GM sourced |
| P1T | ONSTAR ADDITIONAL 33 MONTHS OF ONSTAR ASSURANCE | 2024 | GM sourced |
| P1U | ONSTAR ADDITIONAL 45 MONTHS OF ONSTAR ASSURANCE | 2024 | GM sourced |
| P20 | P, HUBCAPS, WHEEL, STYLED | 1992 | GM sourced |
| P21 | Cap,painted Hub | — | Reference |
| P22 | P, WHL, M, WHEEL, 17 X 7, STEEL, 920 E, 1 | — | GM sourced |
| P23 | Cover,wheel Trim,gmdatc this code has more than one documented meaning — filter by year | — | Reference |
| P24 | P, WHL, M, WHEEL, 17 X 7, ALUMINUM , SPORT, 5 SPOKE, 1108 E, 0 | — | GM sourced |
| P25 | P, WHL, M, WHEEL, 17 X 7.5, ALUM, 5 SPOKE PREMIUM, 313 | — | GM sourced |
| P26 | P, WHL, M, WHEEL, 16 X 7 ALUMINIUM, 6 SPOKES, 126 | — | Provisional |
| P27 | P, WHL, M, WHEEL, 17 X 7.5, ALUM, 6 SPOKE PREMIUM, 313 | — | GM sourced |
| P28 | P, WHL, M, WHEEL, 16 X 7 ALUMINIUM 6 SPOKES, PAINTED, 1023 | — | Provisional |
| P29 | P, WHL, M, WHEEL, 18 X 8.5 ALUMINUM, POLISHED, 1026 | — | Provisional |
| P2A | P, PRICING, ONE COLOR, CLASS A (B/F/J/W-TRK CKGMST) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| P2B | P, PRICING, TWO COLOR, CLASS A (B/F/W-TRK CKGMST) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| P2C | P, PRICING, WHEELS, CLASS A (-TRK CKGMPST) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| P2D | P, PRICING, FRT OR RR BUMPERS (-TRK CKGMPST) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| P2E | P, PRICING, FRT & RR BUMPERS (-TRK CKGMPST) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| P2F | P, PRICING, ONE COLOR, CLASS B (B/W-TRK CKGMST) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| P2G | P, PRICING, TWO COLOR, CLASS B (B/W-TRK CKGMST) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| P2H | P, PRICING, WHEELS, CLASS B ( -TRK CKGMPST) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| P2I | P, PRICING, DIRECT BID OR FEDERAL GOVERNMENT (B/L/W-TRK CKGMP ST) this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| P2J | P, POE, R, PORT OF ENTRY, GEORGIA | 1995 | Provisional |
| P2K | P, POE, R, PORT OF ENTRY, ADELAIDE, AUSTRALIA, 10308 P, 8 | — | Provisional |
| P2L | P, POE, R, PORT OF ENTRY, MELBOURNE, AUSTRALIA, 10308 P, 8 | — | Provisional |
| P2M | P, POE, R, PORT OF ENTRY, MIDDLE EAST | 1996 | Provisional |
| P2N | P, POE, R, PORT OF ENTRY, BRISBANE, AUSTRALIA, 10308 P, 8 | — | Provisional |
| P2P | P, POE, R, PORT OF ENTRY, PERTH, AUSTRALIA, 10308 P, 8 | — | Provisional |
| P2R | Conversion Name Plt Hummer | — | Reference |
| P2S | P, POE, R, PORT OF ENTRY, SYDNEY, AUSTRALIA, 10308 P, 8 | — | Provisional |
| P2T | P, POE, R, PORT OF ENTRY, TOWNSVILLE, AUSTRALIA, 10312 P, 8 | — | Provisional |
| P2U | P, POE, R, PORT OF ENTRY, HOBART, AUSTRALIA, 10312 P, 8 | — | Provisional |
| P2V | P, WHL, M, WHEEL, 16 X 6, STEEL, 18 ROUND HOLES, 1129 E, 0 | — | Provisional |
| P2W | P, WCV, R, COVER, WHEEL, FLUSH, SPORT, 10813 E, 0 | — | GM sourced |
| P2X | Cover, Wheel Flush, High Deluxe | — | Reference |
| P30 | P, WHL, M, WHEEL, 20 X 8.5, ALUMINUM, SPORT, 20227 | — | GM sourced |
| P31 | P, WHL, M, WHEEL, 18 X 7.5 ALUMINUM, CHROME, 20405 | — | GM sourced |
| P32 | P, WHL, M, WHEEL, 18 X 8.5 ALUMINUM, PAINTED, 20509 | — | GM sourced |
| P33 | P, WHL, M, WHEEL, 18 X 7.5, ALUMINUM, 11-SPOKES, 20913 E, 0 | — | Provisional |
| P34 | P, TAW, M, TIRE & WHEEL, SPARE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| P35 | Wheel 20 X 8.5, Chrome Alloy | — | Reference |
| P36 | P, WHL, M, WHEEL, 17 X 9.5 FRT & 18 X 10.5 RR, ALUM POLISHED, 20326 E, 1 | — | GM sourced |
| P37 | Wheel 17 X 8.5, Polished W/bright Ctr Cap | — | Reference |
| P38 | Wheel 18x7.5 Inch, Alumimum, 5 Spoke | — | Reference |
| P39 | Wheel 18 X 8, Aluminum, 6 Spoke | — | Reference |
| P3H | Front and rear black bowties | 2019 | Reference |
| P40 | Wheel 18 X 8, Aluminum, Sport | — | Reference |
| P41 | Tire,special Sidewall(export) this code has more than one documented meaning — filter by year | — | Reference |
| P42 | P, TIRES, SELF SEALING this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| P43 | P, INFLATOR, SPARE TIRE - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| P44 | Wheel 17 X 8.5, Alum Chrome | — | Reference |
| P45 | Wheel 17 X 7, Alum, Bright Polish | — | Reference |
| P46 | Wheel 17 X 7.5, Aluminum, Uplevel | — | Reference |
| P47 | Wheel 20 X 8.0, Aluminum, Chromed | — | Reference |
| P48 | CAST ALUMINUM KNOCK-OFF WHEELS | — | Provisional |
| P49 | Wheel 18 X 7.5 Aluminum, Deluxe | — | Reference |
| P4A | Wheel 18 X 8.5 FRT & 19 X 10 Rr, Aluminum, Painted, Var1 | — | Reference |
| P50 | P, TIRES, CUSTOMER PROPERTY, FRT | 1998 | GM sourced |
| P51 | P, TIRES, CUSTOMER PROPERTY, RR | 1998 | GM sourced |
| P52 | P, TIRES, CUSTOMER PROPERTY, SPARE | 1991 | GM sourced |
| P53 | P, TTS, M, TIRE TREAD SPARE, TREAD & BRAND, FRT MATCH | 1998 | GM sourced |
| P54 | P, TTS, M, TIRE TREAD SPARE, TREAD & BRAND, RR MATCH | 1998 | 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.