← 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 701–800 of 959 codes beginning with A. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| AQ3 | P, SEAT RR, CTR this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| AQ4 | P, SEAT RR this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| AQ5 | P, STS, M, SEAT, FRT BKT, PASS, DRIVER, 6 WAY, RECL this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AQ6 | P, STS, M, SEAT, FRT, ADJ BACK this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| AQ7 | P, STS, M, SEAT, FRT SPLIT, 3 PASS, 6 WAY ADJ, RECL this code has more than one documented meaning — filter by year | 1989 | GM sourced |
| AQ8 | P, STS, M, SEAT, TEMPORARY, FOR SHIPPING, FLOOR MOUNTED this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| AQ9 | P, STS, M, SEAT, FRT BKT, LUXURY this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| AQA | Seat,front Bucket | — | Reference |
| AQC | Ornamentation Extr, Body Color | — | Reference |
| AQJ | Seat FRT Bkt, High Performance | — | Reference |
| AQP | Restraint Head, RR Seat, Center | — | Reference |
| AQQ | Remote Keyless Entry with Push to Start this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| AQR | P, PAS, R, SEAT PASSENGER, AIR, HIGH BACK, VINYL, NATIONAL CUSH-N-AIRE this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| AQS | P, STS, M, SEAT, DRIVER, AIR, LOW BACK, VINYL, NATIONAL CUSH-N-AIRE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AQT | P, STS, M, SEAT, DRIVER, AIR, HIGH BACK, VINYL, NATIONAL CUSH-N- AIRE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AQU | Restraint Head, 2nd Row Seat, Center | — | Reference |
| AQV | P, STS, M, SEAT, DRIVER, AIR, LOW BACK, CLOTH, NATIONAL CUSH-N- AIRE this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| AQW | Equipment Seat Base, Mobility, Handicapped | — | Reference |
| AQY | Restraint Head, RR Seat, Height Adjustable | — | Reference |
| AR0 | P, RESTRAINT, HEAD, RR SEAT, CLOTH COVERED, CLOSED SECTION | 1998 | Provisional |
| AR1 | P, RES, M, RESTRAINT SYSTEM, - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AR2 | P, RESTRAINT, HEAD, FRT SEAT, LEATHER COVERED, OPEN SECTION | 1991 | Provisional |
| AR3 | P, RESTRAINT, HEAD, RR SEAT, CLOTH COVERED, OPEN SECTION | 1998 | Provisional |
| AR4 | P, RES, M, RESTRAINT SYSTEM, SEAT, AUTO, PASSIVE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AR5 | P, RESTRAINT, HEAD, RR SEAT, LEATHER COVERED, OPEN SECTION | 1991 | GM sourced |
| AR6 | P, RES, M, RESTRAINT SYSTEM, SEAT BELT, SHLDR HARN, MAN this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AR7 | P, STS, M, SEAT, FRT BKT, STANDARD this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AR8 | P, RESTRAINT PROVISIONS, TENSIONER - DELETE | 1998 | Provisional |
| AR9 | P, STS, M, SEAT, FRT BKT, DELUXE this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| ARA | C, EQUIPMENT, BODY REAR GLASS & INTERIOR TRIM - DELETE this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| ARB | Equipment,body,structure,reinforcement this code has more than one documented meaning — filter by year | — | Reference |
| ARC | Control Seat, Rear, Power Lumbar, 4 Way | — | Reference |
| ARD | P, STS, M, SEAT, FRT BKT, LOW BACK, DRIVE, SELF-CONTAINED AIR SUSP this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| ARE | P, PAS, R, SEAT PASSENGER, FRT BKT, LOW BACK, SELF-CONTAINED AIR SUSP this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| ARF | C, DOOR CHECK, LH this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| ARG | P, DOOR CHECK, RH this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| ARH | P, NET, PET GUARD/LUGGAGE, 10521 E, 4 | — | GM sourced |
| ARL | P, PLT, R, PLANT CODE, ARLINGTON, TX, USA this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| ARM | Family Code, Arm LH | 1997 | GM dated |
| ARN | Seats, third row 60/40 split-folding bench this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| ARP | Seat Third Row Bench, Folding | — | Reference |
| ARR | Family Code, Arm RH | 1997 | GM dated |
| ARS | Adjuster RR Rear Seat, Power, Stowable | — | Reference |
| ARV | C, VEHICLE, AIRPORT REFUELER this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| ARZ | P, NET, REMOVABLE STOWAGE BAG | 1998 | GM sourced |
| AS0 | P, RESTRAINT, HEAD, RR SEAT, ACTIVE, 828 E, 0 | — | GM sourced |
| AS1 | P, SEAT BACK, FRT BKT, HIGH BACK, DRIVER this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| AS2 | P, SEAT BACK, FRT BKT, HIGH BACK this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| AS3 | P, SEAT RR, SUBURBAN/UTILITY, 20514 this code has more than one documented meaning — filter by year | — | GM sourced |
| AS4 | P, STS, M, SEAT, FRT BKT, HIGH BACK, DRIVER this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AS5 | P, STS, M, SEAT, FRT BKT, DELUXE this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| AS6 | P, RESTRAINT, HEAD, RR SEAT - DELETE | 1998 | GM sourced |
| AS7 | P, STS, M, SEAT, FRT SPLIT this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| AS8 | Seats, third row 60/40 split-bench this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| AS9 | P, RSO, M, RESTRAINT (OPEL), HEAD, FRT SEAT, VINYL COVERED | 1997 | GM sourced |
| ASA | P, STS, M, SEAT, FRT BKT, HIGH BACK, DRIVER, SELF-CONTAINED AIR SUSP this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| ASB | Pocket,front Seat Back this code has more than one documented meaning — filter by year | — | Reference |
| ASC | P, PAS, R, SEAT PASSENGER, FRT BKT, HIGH BACK, SELF-CONTAINED AIR SUSP this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| ASD | Airbags this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| ASE | P, EQUIPMENT, AIR SEAT this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| ASF | P, RESTRAINT, ROOF SIDE, LH & RH, INFLATABLE this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| ASG | Seat Driver,air,high Back,vinyl,bostrom 910 this code has more than one documented meaning — filter by year | — | Reference |
| ASH | Seat RR Bucket, 40/0/40, W/ Integrated Functional Console | — | Reference |
| ASI | Fleet Incentive Anthony Crane Rental LP Dba Maxim Crane Works (u/w -trk Ckgmlst) | — | Reference |
| ASN | P, AFT, R, ADJUSTER FRT ST, MANUAL, 2 WAY, PWR VERT, DRIVER | 1998 | GM sourced |
| ASP | Seat Passenger Frt, Rr, Not Installed | — | Reference |
| AST | Family Code, Adjuster Pass ST BK | 1990 | GM dated |
| ASU | C, CCU, M, PRIMARY COLOR, EXTERIOR, ORANGE, ASHPLUNDN WE5108 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| ASV | Equipment Sensor Air Moisture & W/s Temp | — | Reference |
| AT0 | P, RSO, M, RESTRAINT (OPEL), HEAD, RR SEAT, CLOTH COVERED, CLOSED SECTION | 1998 | GM sourced |
| AT1 | P, RSO, M, RESTRAINT (OPEL), HEAD, RR SEAT, LEATHER COVERED, CLOSED SECTION | 1998 | Provisional |
| AT2 | P, RESTRAINT, HEAD, FRT SEAT, CLOTH, 2 WAY ADJUST | 1998 | GM sourced |
| AT3 | P, RESTRAINT PROVISIONS, CHILD, RR SEAT, ANCHORAGE, REINFORCED, 209 E, 0 this code has more than one documented meaning — filter by year | — | GM sourced |
| AT4 | P, PAS, R, SEAT PASSENGER, FRT BKT, LOW BACK, RECL, 2 WAY ADJUSTER | 1997 | GM sourced |
| AT5 | P, SEAT RR, CTR, FLDG this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| AT6 | Seats, second row 60/40 split-folding bench this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| AT7 | P, RESTRAINT SYSTEM RR, SEAT, SHLDR, RETR, 3 POINT, 3 SHLDR this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| AT8 | P, RESTRAINT PROVISIONS, CHILD, RR SEAT, ANCHORAGE, FLOOR, 127 this code has more than one documented meaning — filter by year | — | GM sourced |
| AT9 | Seat adjuster, front passenger 2-way power lumbar | 2026 | GM sourced |
| ATB | Seat Third Row Folding, Tumble | — | Reference |
| ATC | Family Code, Aux Top Color | 1989 | GM dated |
| ATD | Seat delete, third row passenger this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| ATE | Seat Covering,full Cloth,1 | — | Reference |
| ATG | Lock Control, Entry Remote Entry, Standard Range this code has more than one documented meaning — filter by year | — | Reference |
| ATH | Keyless Open | 2026 | GM sourced |
| ATI | Sales Package Atlantic | — | Reference |
| ATJ | Seat Covering,sport this code has more than one documented meaning — filter by year | — | Reference |
| ATK | Seat Covering,full Cloth,2 | — | Reference |
| ATL | Seat Third Row Bench With Fold Down Table | — | Reference |
| ATM | Seat Covering,comfort Deluxe | — | Reference |
| ATN | Seats, second row bucket | 2026 | GM sourced |
| ATP | Seat RR Adjustable, RH & Lh, Power | — | Reference |
| ATQ | Seat Covering,full Cloth,3 | — | Reference |
| ATR | Restraint System RR Seat, Shldr, Retr, 3 Point, 2 Shldr this code has more than one documented meaning — filter by year | — | Reference |
| ATS | Lock Control, Entry Remote Entry, Standard Range, Passive Entry | — | Reference |
| ATT | Seats, second row 60/40 split-folding bench this code has more than one documented meaning — filter by year | 2026 | GM sourced |
| ATV | Seats, second row bucket, manual | 2019 | Reference |
| ATW | Seat Fabric,cloth,tricot 1 this code has more than one documented meaning — filter by year | — | Reference |
| ATX | P, SEAT RR, NOT INSTALLED (SEAT, BELTS, LABELS) this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| ATY | P, SEAT RR, NOT INSTALLED (SEAT, BELTS, LABELS, MTG HARDWARE) this code has more than one documented meaning — filter by year | 1999 | 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.