← 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 801–900 of 922 codes beginning with U. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| UUS | P, PLT, R PLANT CODE, UUSIKAUPUNKI, FINLAND | 1997 | Provisional |
| UV1 | P, DISPLAY, ENHANCED VISION, HEAD UP, MOBILE DATA TERMINAL | 1994 | GM sourced |
| UV2 | HD Surround Vision | 2026 | GM sourced |
| UV3 | Night Vision | 2026 | GM sourced |
| UV4 | P, PROVISIONS, NAVIGATION SYSTEM | 1997 | GM sourced |
| UV5 | P, DISPLAY, SERVICE REMINDER | 1985 | GM sourced |
| UV6 | Head-Up Display this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| UV7 | P, ANT, M ANTENNA, WINDSHIELD, RR WINDOW, RADIO | 1994 | GM sourced |
| UV8 | P, TELEPHONE, PROVISIONS FOR MOBILE | 1985 | GM sourced |
| UV9 | P, NAVIGATION SYSTEM, DISPLAY, COLOR this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| UVA | Radio Am/fm Stereo, Seek/scan, Auto Tone, Cd, Cd-r Mp3, Dvd, Clock, Etr, Rds | — | Reference |
| UVB | HD Rear Vision Camera | 2026 | GM sourced |
| UVC | Rear Vision Camera | 2022 | GM sourced |
| UVD | Steering wheel, heated, leather-wrapped and color-keyed with theft-deterrent locking feature | 2019 | Reference |
| UVE | Radio Am/fm Stereo, Seek/scan, Dvd, Aux, Rear View Camera | — | Reference |
| UVF | Camera Front View | — | Reference |
| UVH | P, EQUIPMENT, DRIVER INFO DISPLAY LANGUAGE (PORTUGUESE), 310 this code has more than one documented meaning — filter by year | — | GM sourced |
| UVI | Trailer Camera Package, includes left and right side mirror cameras | 2019 | Reference |
| UVK | Display Head Up, Color | — | Reference |
| UVL | Camera Lane Departure Warning (do Not Use After M.y. 2012 Use Ufl) | — | Reference |
| UVN | Bed View Camera | 2026 | GM sourced |
| UVO | Bed View Camera | 2026 | GM sourced |
| UVS | HD Surround Vision with Two Trailer View Camera Provisions | 2022 | Provisional |
| UVT | Camera Lane Departure Warning, Traffic Sign Recognition | — | Reference |
| UVU | Camera Lane Departure Warning, Traffic Sign Recognition Jam Assist | — | Reference |
| UVW | Sensor Indicator Traffic Sign Recognition Basic | — | Reference |
| UVX | Traffic Sign Recognition | 2026 | GM sourced |
| UVY | Sensor Headlamp Low Beam Auto Dynamic Control | — | Reference |
| UVZ | Reverse Automatic Braking | 2026 | GM sourced |
| UW0 | P, RDO, M RADIO, AM/FM STEREO, SEEK SCAN, CD, ETR, FADER,, TELEPHONE PROVISIONS, 1020 E, 5 | — | GM sourced |
| UW1 | P, DIAGNOSTIC SYSTEM this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| UW2 | P, SPR, M SPEAKER SYSTEM, 10, QUAD FRT DR MTD, DUAL RR SAIL PNL, AMPLIFIER | 1989 | GM sourced |
| UW3 | P, RDO, M RADIO, AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC SEARCH CASSETTE, DATA SYSTEM, CLOCK, ETR | 1992 | GM sourced |
| UW4 | P, SPR, M SPEAKER SYSTEM, 4, CUSTOM this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| UW5 | P, SPR, M SPEAKER SYSTEM, 6, BASE | 1998 | GM sourced |
| UW6 | P, SPR, M SPEAKER SYSTEM, 6, CUSTOM this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| UW7 | P, RDO, M RADIO, AM/FM STEREO, SEEK SCAN, MULTI CD, ETR, FADER, TELEPHONE PROVISIONS, NAVIGATION, 1017 E, 5 | — | GM sourced |
| UW8 | P, RDO, M RADIO, AM/FM STEREO, SEEK SCAN, MULTI CD, ETR, FADER, TELEPHONE PROVISIONS, NAVIGATION, HPS, 1019 E, 5 | — | GM sourced |
| UW9 | Rear Seat Media System | 2026 | GM sourced |
| UWA | Telephone Provisions For Mobile, W/voice Control & Bluetooth | — | Reference |
| UWB | Telephone Provisions For Mobile, W/o Voice Control & Bluetooth | — | Reference |
| UWC | Speedometer,electric | — | Reference |
| UWE | Telephone Provisions, W/bluetooth, W/o Voice Control/p Auto Tone | — | Reference |
| UWF | Entertainment Pkg Rear Seat, Player, Dvd, Headrest Monitor | — | Reference |
| UWG | Entertainment Pkg RR Seat, Individual Play Dvd, Dual Headrest Monitor | — | Reference |
| UWI | Telephone Mobile, Cradle, Antenna & Recharge, Floor Console | — | Reference |
| UWJ | Entertainment Pkg RR Seat, Individual Play Dvd, Dual 7' Headrest Monitor | — | Reference |
| UWK | C, WIRING PROVISIONS, BODY MARKER LAMP this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| UWP | Radio,am/fm Stereo,seek Scan, Multi Cd, MP3 Etr | — | Reference |
| UWQ | Radio Am/fm Stereo, Seek/scan, Multi Cd, Mp3, Etr, Hps I/p | — | Reference |
| UWR | Radio Am/fm Stereo, Seek/scan, Multi Cd, Mp3, Etr, I/p Auto Tone | — | Reference |
| UWV | Diagnostic System European On-board Diagnostics (e-obd) | — | Reference |
| UX0 | Speaker System,six,dual Floor Sill,dual Extended Range Sail Panel | — | Reference |
| UX1 | P, RDO, M RADIO, AM STEREO/FM STEREO, SEEK/SCAN, AUTO REV MUSIC SEARCH CASS, EQUALIZER, CLOCK, ETR this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| UX2 | P, RDO, M RADIO, AM/FM STEREO, SEEK, AUTO REV CASS, ETR. | 1997 | Provisional |
| UX3 | P, RDO, M RADIO, AM/FM STEREO, SEEK, ETR this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| UX4 | P, SPR, M SPEAKER SYSTEM, 4, DELUXE | 1997 | Provisional |
| UX5 | P, RDO, M RADIO, AM STEREO/FM STEREO, SEEK, AUTO REV MUSIC SEARCH CASS, CLOCK, COMPACT DISC PROVISIONS | 1997 | Provisional |
| UX6 | P, SPR, M SPEAKER SYSTEM, 2, CUSTOM this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| UX7 | P, SPR, M SPEAKER SYSTEM, 4, DUAL FRT DR MTD, DL EXTND RGE PKG SHELF this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| UX8 | P, SPR, M SPEAKER SYSTEM, 8, DELUXE this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| UX9 | P, SPR, M SPEAKER SYSTEM, 8, DUAL F/D MTD, DUAL RR DR, TRIPLE I/P, PKG SHELFAMPLIFIER, BOSE | 1998 | GM sourced |
| UXA | Radio Am/fm Stereo, Seek/scan, Multi Cd, Mp3, Etr, Hps I/p, Fbm | — | Reference |
| UXB | P, TLR, R WIRING HARNESS, TRAILER 7 WIRE, GENERIC this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| UXD | P, RDO, M RADIO, AM/FM STEREO, SEEK, ETR (ELECTRONIC TUNING), 20701 E, 0 | — | Provisional |
| UXE | Gage Booster With Shift Light | — | Reference |
| UXG | Radio Am/fm Stereo, Nav, Dvd-rom, Caf, Hdd, USB Rsa, Rse(taiwan) | — | Reference |
| UXH | Radio Am/fm Stereo, Seek/scan, Single Cd, Mp3, Etr, Hps I/p, Auto Tone, Fbm | — | Reference |
| UXQ | P, GAGE, METRIC PACKAGE (METRIC READ-OUT ONLY) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| UXT | P, GAGE, TRANS TEMP this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| UXW | Radio Am/fm Stereo, Nav, Cd-rom, Caf, Usb, Rsa, Tmc (gme Version) | — | Reference |
| UXX | Radio Am/fm Stereo, Nav, Dvd-rom, Caf, Usb, Rsa Tmc, (gme Version) | — | Reference |
| UXY | Radio Am/fm Stereo, Nav, Dvd-rom,caf, Hdd, USB Rsa, Rse,tmc,(gme Type) | — | Reference |
| UXZ | P, RDO, M RADIO, PROVISIONS FOR this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| UY0 | Battery 40 AH | — | Reference |
| UY1 | P, WIRING PROVISIONS, CAMPER this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| UY2 | Trailering wiring provisions this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| UY3 | P, TELEPHONE, MOBILE, S.E. SERIES | 1985 | GM sourced |
| UY4 | P, NAVIGATION SYSTEM, DISPLAY | 1995 | GM sourced |
| UY5 | P, SPR, M SPEAKER SYSTEM, 15, DELUXE, 10727 E, 4 this code has more than one documented meaning — filter by year | — | GM sourced |
| UY6 | P, WIRING PROVISIONS, I/P & CROSS CAR | 1991 | GM sourced |
| UY7 | P, TLR, R WIRING HARNESS, TRUCK TRAILER, HD this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| UY8 | P, RDO, M RADIO, AM/FM STEREO, SEEK, CD, ETR, FADER | 1997 | Provisional |
| UY9 | P, CSR, M CLUSTER, KILO & MILES, MECHANICAL DISPLAY this code has more than one documented meaning — filter by year | 1988 | GM sourced |
| UYB | Radio Am/fm Stereo, Cd-rom, Caf, Rsa (gme/me/taiwan Version) | — | Reference |
| UYC | Radio Am/fm Stereo, Cd-rom, Caf, Rsa (gmna Version) | — | Reference |
| UYD | Radio Am/fm Stereo, Cd-rom, Caf, (korea Version) | — | Reference |
| UYE | Radio Am/fm Stereo, Cd-rom, Caf, Rsa, Music Navigator (gmna Version) | — | Reference |
| UYF | Radio Am/fm Stereo, Cd-rom, Caf, Rsa, Music Navigator (china Version) | — | Reference |
| UYG | Radio Am/fm Stereo,cd-rom,caf,music Navigator(australia/new Zealand) | — | Reference |
| UYI | Radio Am/fm Stereo, Cdx-rom, Caf, Rsa, Music Navigator (gme/me/taiwan) | — | Reference |
| UYJ | Radio Am/fm Stereo, Cdx-rom, Caf, Rsa, Music Navigator (gmna Version) | — | Reference |
| UYK | Radio Am/fm Stereo, Cdx-rom, Caf, Rsa, Music Navigator (china Version) | — | Reference |
| UYL | Radio Am/fm Stereo, Cdx-rom, Caf, Music Navigator (korea Version) | — | Reference |
| UYM | Radio Am/fm Stereo, Cdx-rom, Caf, Rsa, Music Navigator(japan Version) | — | Reference |
| UYP | Radio Am/fm Stereo, Cd-rom, Caf, Hdd, USB (australia/new Zealand Vers | — | Reference |
| UYQ | Radio Am/fm Stereo, Nav, Dvd-rom, Caf, Usb, Rsa (gmna Version) | — | Reference |
| UYR | Radio Am/fm Stereo, Nav, Dvd-rom, Caf, Usb, (korea Version) | — | Reference |
| UYS | Radio Am/fm Stereo, Nav, Dvd-rom, Caf, Hdd, USB Rsa, Rse(gmna Version) | — | Reference |
| UYT | Radio Am/fm Stereo, Nav, Dvd-rom, Caf, Hdd, USB Rsa, Rse,(china) | — | 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.