← 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 589 codes beginning with 5. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| 5P2 | P, WHL, M, WHEEL, ALUMINUM, SPECIAL this code has more than one documented meaning — filter by year | 1988 | GM sourced |
| 5P3 | C, CONVERSION, PROPANE GAS (SEO), 10807 this code has more than one documented meaning — filter by year | — | GM sourced |
| 5P4 | Net Endgate this code has more than one documented meaning — filter by year | — | Reference |
| 5P5 | C, LUBRICANT, SYNTHETIC | 1994 | GM sourced |
| 5P6 | C, INTERIOR PACKAGE, PARCEL SERVICE, FEDERAL EXPRESS/ADSCO this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| 5P7 | C, CABLE, BATTERY POS & NEG (EXTENDED LENGTH) | 1994 | GM sourced |
| 5P8 | C, REF, R, REINFORCEMENT, SLIDING DOOR this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| 5P9 | C, PANEL, TRIM, RR DR this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| 5PD | Wheel 15 X 5.0, J, Aluminum, Design 3 | — | Reference |
| 5PF | Wheel 15 X 6.0, J, Aluminum, Design 4 | — | Reference |
| 5PG | Wheel 15 X 6.0, J, Aluminum, Design 5 | — | Reference |
| 5PH | Wheel 15 X 6.0, J, Aluminum, Design 6 | — | Reference |
| 5PK | Wheel 18 X 7.5, J, Machined, Design # 14 | — | Reference |
| 5PL | Wheel 15 X 6.0, J, Aluminum, Design 7 | — | Reference |
| 5Q1 | C, TAL, R, TAIL LAMP, - DELETE (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5Q2 | Beauville Package,interior Trim | — | Reference |
| 5Q3 | C, PROVISIONS, FRT BUCKET SEATING (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5Q4 | C, PROVISIONS, FRT BENCH SEATING (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5Q5 | C, PROVISIONS, RH EXIT DOOR | 1997 | GM sourced |
| 5Q6 | C, WHM, R, MOLDING WHL OPENING, - DELETE (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5Q7 | C, PANEL, TRIM - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5Q8 | C, WHM, R, MOLDING WHL OPENING, SPECIAL PAINT this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| 5Q9 | C, BSM, R, MOLDING B/S, CUSTOM (SEO) this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| 5QA | P, INTERIOR PACKAGE, CUSTOM SEATING, 20904 E, 0 | — | Provisional |
| 5QB | P, INTERIOR PACKAGE, CUSTOM STORAGE, 20904 E, 0 | — | Provisional |
| 5QC | Panel Trim, FRT & RR Doors, Std | — | Reference |
| 5QD | Panel Trim, FRT & RR Doors, Deluxe, Var 1 | — | Reference |
| 5QE | Panel Trim, FRT & RR Doors, Partial | — | Reference |
| 5R0 | C, CHP, R, CHASSIS PACKAGE, 212 IN WHL BASE | 1998 | GM sourced |
| 5R1 | C, BPR, R, BUMPER, FRT & RR, CHROME (SEO) | 1997 | GM sourced |
| 5R2 | C, BENCH SEAT, - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5R3 | Chassis Package,power Train Economy | — | Reference |
| 5R4 | C, CHP, R, CHASSIS PACKAGE, 110 IN WHL BASE LOW PRO this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5R5 | C, CHP, R, CHASSIS PACKAGE, 228 IN WHL BASE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5R6 | Chassis Package,p/t Economizer | — | Reference |
| 5R7 | C, CHP, R, CHASSIS PACKAGE, POWER TRAIN ECONOMIZER W/INJ PUMP & ANODIZED ALUMINUM PISTONS this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5R8 | P, PROVISIONS, FRT CONSOLE COMPT, FLOOR | 1994 | GM sourced |
| 5R9 | C, CHP, R, CHASSIS PACKAGE, 229.5 IN WHL BASE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5RA | P, WHM, R, MOLDING WHL OPENING, BLACK, 608 E, 5 | — | Provisional |
| 5RU | Illuminated liftgate sill plate (LPO dealer-installed accessory) | 2026 | GM sourced |
| 5S1 | C, CHP, R, CHASSIS PACKAGE, POWER TRAIN ECONOMIZER W/ELECTRONIC FUEL CONTROLS (SEO) | 1997 | GM sourced |
| 5S2 | C, PROVISIONS, ECU-PREMIUM UTILITY LL | 1998 | GM sourced |
| 5S3 | C, EQUIPMENT, ENGINE, GAS, 4.3L, V6 | 1998 | GM sourced |
| 5S4 | C, BENCH SEAT, AND HEADLINING this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5S6 | C, APP, R, APPEARANCE PACKAGE, INDY TRUCK this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| 5S8 | C, BDS, M, BODY EQUIPMENT, RR DOOR, W/END GATE WINDOW (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5S9 | C, INSPECTION LABEL, US POSTAL SERVICE (FORM 7342) (INSP NOT REQ) | 1991 | GM sourced |
| 5SA | Package Denali Option 1 | — | Reference |
| 5SB | Package Denali Option 2 | — | Reference |
| 5SC | Package Denali Option 3 | — | Reference |
| 5SD | Package Denali Option 4 | — | Reference |
| 5T0 | C, PROVISIONS, MOBILE RADIO ANTENNA | 1994 | GM sourced |
| 5T1 | C, AXLE POSITRACTION, LIMITED SLIP (SEO) | 1998 | GM sourced |
| 5T2 | C, AXLE, WIDE TRACK (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5T3 | C, APP, R, APPEARANCE PACKAGE, SHARK EDITION | 1995 | GM sourced |
| 5T4 | Special paint WA 9260, Victory Red painted parts front fascia, rear fascia, tailgate applique | 2026 | GM sourced |
| 5T5 | cloth front seats with vinyl second-row seat | 2026 | GM sourced |
| 5TA | Equipment Driver Training Pack | — | Reference |
| 5TB | Equipment Additional Western Europe | — | Reference |
| 5TC | Equipment Additional, Western Samoa | — | Reference |
| 5TD | Equipment Additional Yemen | — | Reference |
| 5TE | P, TIR, M, TIRE ALL, P245/65R17-105S BW PE/ST TL OOR (SEO), 10504 | — | GM sourced |
| 5TF | Equipment Additional Vietnam | — | Reference |
| 5TG | Equipment Additional Western Africa | — | Reference |
| 5TI | Equipment Additional, Ukraine | — | Reference |
| 5U0 | C, FMF, R, COVERING FRT, FLOOR MATS, AUX - DELETE (SEO) | 1998 | GM sourced |
| 5U1 | C, FMR, R, COVERING REAR, FLOOR MATS, AUX - DELETE (SEO) | 1998 | GM sourced |
| 5U3 | C, COVERING, FLOOR MAT, FRT 10" this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| 5U4 | C, COVERING, FLOOR MAT, RR, (SEO), 20206 | — | GM sourced |
| 5U5 | C, COVERING, FLOOR MAT, FRT 6" EXT | 1997 | GM sourced |
| 5U6 | C, COVERING, FLOOR MAT, FRT & RR, AUX - DELETE (SEO) | 1998 | GM sourced |
| 5U9 | Front Floor Mats | — | Reference |
| 5V0 | C, EQUIPMENT, BUS, HEAVY DUTY, EXPORT this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5V1 | C, WCR, R, CARRIER, SPARE WHEEL W/O TIRE this code has more than one documented meaning — filter by year | 1995 | GM sourced |
| 5V2 | C, EQUIPMENT, FRAME RAIL & REINF, HEAVY DUTY (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5V3 | C, EQUIPMENT, FRAME RAIL, HEAVY DUTY (SEO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| 5V4 | 'cameo' Package this code has more than one documented meaning — filter by year | — | Reference |
| 5V5 | Accessory Spoiler | — | Reference |
| 5V6 | Accessory Interior Enhancement Coupe this code has more than one documented meaning — filter by year | — | Reference |
| 5V7 | 'cameo El' Package | — | Reference |
| 5V8 | Accessory Interior Enhancement Sedan | — | Reference |
| 5VA | Accessory Rear Compartment Lid Latch Emergency Release | — | Reference |
| 5VB | Accessory Television - Digital | — | Reference |
| 5VD | Accessory Protector - Front Bumper | — | Reference |
| 5VF | Carbon fiber exhaust tip (LPO dealer-installed accessory) | 2025 | GM sourced |
| 5VI | Cargo Tie-Downs (LPO dealer-installed accessory) | 2026 | GM sourced |
| 5VJ | Accessory Roof Rack Base Carrier - W/cross Rails | — | Reference |
| 5VK | C, TIR, M, TIRE ALL, LT225/75R16/C BL R/PE ST TL ALS (SEO) this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| 5VL | Accessory Wheel Covers - Alternate Design 2 | — | Reference |
| 5VM | Accessory Ground Effects Package - Alternate Design | — | Reference |
| 5VN | Accessory Window Control Kit - Power, Alternate Design | — | Reference |
| 5VO | Accessory Tire - P285/45r22-110h BW AT | — | Reference |
| 5VP | Accessory Tonneau Cover - Hard Shell - W/sport Bar Cutouts | — | Reference |
| 5VR | Accessory Side Obstacle Detection | — | Reference |
| 5VV | Accessory Lock - Tailgate Handle | — | Reference |
| 5VW | Accessory Radio W/ CD - Retractable Dvd Display | — | Reference |
| 5VX | Accessory CD Player W/ Dvd Display - Multifunction | — | Reference |
| 5W0 | Accessory Wheel - 15' X 6.0 - J - Aluminum - Design 1 | — | Reference |
| 5W2 | Accessory CD Player - Single - W/ USB | — | Reference |
| 5W3 | Accessory CD Player - Single - W/ USB & Bluetooth | — | 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.