← 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 201–300 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 |
|---|---|---|---|
| A7E | Seat adjuster, passenger 4-way manual | 2026 | GM sourced |
| A7J | Seat adjuster, front passenger 6-way power | 2026 | GM sourced |
| A7K | Seat adjuster, passenger 10-way power including lumbar | 2026 | GM sourced |
| A7Z | Lock Control RR Cmpt Lid, Elec Release | — | Reference |
| A80 | P, AFS, R, ADJUSTER FRT ST BK, POWER, DRIVER, RECLINING this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| A81 | P, AST, R, ADJUSTER PASS ST BK, POWER, RECLINING this code has more than one documented meaning — filter by year | 1990 | GM sourced |
| A82 | P, RESTRAINT, HEAD this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| A83 | P, SBR, R, ADJUSTER, SEAT BACK, RECLINING this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| A84 | Compartment Door,non-locking(gmdat) this code has more than one documented meaning — filter by year | — | Reference |
| A85 | P, SEAT BACK, FOLDING | 1997 | GM sourced |
| A86 | P, MODIFICATION, RESTRAINT SYSTEM, EXPORT this code has more than one documented meaning — filter by year | 1995 | GM sourced |
| A87 | P, SEAT RR, W/CENTER ARMREST & HEADREST | 1995 | GM sourced |
| A88 | P, RESTRAINT, HEAD, FRT SEAT, ACTIVE | 1997 | GM sourced |
| A89 | P, RESTRAINT, SEAT BELT TENSIONER FRT - DELETE | 1998 | Provisional |
| A8A | P, MODIFICATION, VX (01) V8 GEN3 SPEC, 531 E, 8 8, A | — | Provisional |
| A8B | P, SGR, R, MERCHANDISED PKG, OLYMPIC, 511 E, 8 8, A | — | Provisional |
| A8C | P, MODIFICATION, DELETE BOLT ON REINFORCEMENT, 507 E, 8 8, A | — | Provisional |
| A8D | P, ORNAMENTATION, NAME PLATE 'OPEL', 20725 E, 8 | — | GM sourced |
| A8E | P, KIT, AFTER MARKET PERFORMANCE BRAKES, 1204 P, 8 8, A | — | Provisional |
| A8F | P, KIT, AFTER MARKET PREMIUM BRAKES, 1204 P, 8 8, A | — | Provisional |
| A8G | P, SGR, R, MERCHANDISED PKG, LT SPORT, 511 E, 8 8, A | — | Provisional |
| A8J | P, SGR, R, MERCHANDISED PKG, HOLDENS ACCLAIM | 1998 | Provisional |
| A8L | P, LOCAL, BODY CHANGES(GEN 3 MAN. INTRO.) | 1998 | Provisional |
| A8M | P, PAR, R, PARTITION, FRT SEAT | 1998 | Provisional |
| A8N | P, PAR, R, PARTITION, RR SEAT (TELSTRA) | 1998 | Provisional |
| A8P | P, SALES PACKAGE, 25TH ANNIVERSARY COMMODORE, 21028 E, 8 8, A | — | Provisional |
| A8Q | P, SALES PACKAGE, POLICE PACK ON 'S PACK', 10206 E, 8 8, A | — | GM sourced |
| A8R | 2010-12 Oem Engine Physical ID A8r & Production Number 24578319 this code has more than one documented meaning — filter by year | — | Reference |
| A8S | 2010-12 Oem Engine Physical ID A8s & Production Number 24578320 this code has more than one documented meaning — filter by year | — | Reference |
| A8T | 2010-11 Oem Engine Physical ID A8t & Production Number 24578321 | — | Reference |
| A8U | P, SALES PACKAGE, 'STORM' UTE, 11004 E, 8 8, A | — | Provisional |
| A8V | P, SALES PACKAGE, POLICE PACK ON "SS", 507 E, 8 8, A | — | GM sourced |
| A8W | Sales Package All Season - Lpo | — | Reference |
| A8X | P, SALES PACKAGE, 'INTERNATIONAL PACK', 829 E, 8 8, A | — | GM sourced |
| A8Y | P, SALES PACKAGE, 'LUMINA' RHD PACK (HOLDEN'S), 509 E, 8 8, A | — | Provisional |
| A8Z | Sales Package Enhanced Sight And Lighting | — | Reference |
| A90 | P, LCR, R, LOCK CONTROL RR CMPT, LID, REM CONT ELEC RELEASE this code has more than one documented meaning — filter by year | 1993 | GM sourced |
| A91 | P, LCR, R, LOCK CONTROL RR CMPT, TAILGATE, REM CONT ELEC OPEN/CLOSE, 801 E, 0 this code has more than one documented meaning — filter by year | — | GM sourced |
| A92 | P, RESTRAINT, SEAT BELT TENSIONER RR - DELETE | 1998 | GM sourced |
| A93 | P, LOCK CONTROL, QUARTER STOWAGE COMPT this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| A94 | P, LCR, R, LOCK CONTROL RR CMPT, LID, REM CONT MANUAL RELEASE | 1998 | GM sourced |
| A95 | SEAT & CENTER CONSOLE - Driver and Passenger Front Bucket Cloth Seats, with integrated retail console this code has more than one documented meaning — filter by year | 2020 | GM sourced |
| A96 | P, LOCK CONTROL, LUGG COMPT this code has more than one documented meaning — filter by year | 1991 | GM sourced |
| A97 | P, LCE, R, LOCK CONTROL, ENTRY, REMOTE ENTRY - W/O ANTI THEFT PROTECTION | 1999 | GM sourced |
| A98 | P, LCR, R, LOCK CONTROL RR CMPT, LID, REM CONT ELEC RELEASE, IGNITION POWERED | 1999 | GM sourced |
| A99 | P, COMPARTMENT DOOR, LOCKABLE GLOVE DOOR this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| A9B | P, SALES PACKAGE, CV8R COUPE RHD, 20724 E, 8 8, A | — | GM sourced |
| A9C | P, KIT, AFTER MARKET HSV PREMIUM SOUND, 1205 E, 8 8, A | — | Provisional |
| A9D | P, SGR, R, MERCHANDISED PKG, HOLDENS "S" | 1998 | GM sourced |
| A9E | P, SGR, R, MERCHANDISED PKG, SPECIAL V8(VY - 03), 1212 E, 8 8, A | — | Provisional |
| A9F | P, SGR, R, MERCHANDISED PKG, HOLDENS "SS" | 1998 | Provisional |
| A9G | P, SALES PACKAGE, VALUE PACK "JACKAROO", 11118 E, 8 8, A | — | GM sourced |
| A9I | P, LOCAL, MODEL YEAR 2002, 10306 E, 8 8, A | — | Provisional |
| A9J | P, SGR, R, MERCHANDISED PKG, HOLDENS "ANNIVERSARY" | 1998 | Provisional |
| A9K | P, NAVIGATION SYSTEM, AFTER MARKET SATELLITE NAVIGATION, 1204 E, 8 8, A | — | Provisional |
| A9L | P, SEAT RR, 3 PASSENGER REAR SEAT, 507 E, 8 8, A | — | Provisional |
| A9M | P, VEHICLE, TAXICAB, VICTORIA/QUEENSLAND | 1998 | Provisional |
| A9N | P, LOCAL, TRANS SURVEILLANCE VEHICLE, 221 E, 8 8, A | — | Provisional |
| A9O | Merchandised Pkg Pontiac G8 Base | — | Reference |
| A9P | P, KIT, AFTER MARKET HSV PERFORMANCE PACK, 1205 E, 8 8, A | — | Provisional |
| A9Q | P, VEHICLE, RACV PACK, 511 E, 8 8, A | — | Provisional |
| A9R | Sales Package Royale | — | Reference |
| A9T | P, VEHICLE, TAXICAB, NATIONAL | 1998 | Provisional |
| A9U | Seat Back One-touch Folding | — | Reference |
| A9W | P, LOCAL, SERIES 2 VEHICLE UPGRADE | 1999 | Provisional |
| A9X | P, CCD, R, EXPORT, SOP | 1998 | Provisional |
| A9Y | P, KIT, AFTER MARKET ID PACKAGE, 1204 P, 8 8, A | — | Provisional |
| A9Z | P, KIT, AFTER MARKET BODY KIT, 1210 P, 8 8, A | — | Provisional |
| AA0 | 27 P, PAR, R, PARTITION, DELETE---, 406 | — | Provisional |
| AA1 | 28 P, WINDOW, LAMINATED, INTRUSION RESISTANT | 1998 | Provisional |
| AA2 | 29 P, GOT, R, WINDOW TINTED, WINDSHIELD (UNSHADED) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| AA3 | 30 P, GOT, R, WINDOW TINTED, DEEP, ALL EXCEPT W/S, F.D., AND R/END DR this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| AA4 | 31 P, WINDOW, SPECIAL GLAZING, DOMESTIC | 1991 | GM sourced |
| AA5 | 32 P, WINDOW, RR QTR - DELETE | 1998 | GM sourced |
| AA6 | 33 P, WINDOW, CLEAR, ALL, LAMINATED W/S | 1987 | GM sourced |
| AA7 | 34 P, WINDOW, POWER OPERATED, QUICK OPENING this code has more than one documented meaning — filter by year | 1987 | GM sourced |
| AA8 | 35 P, IDENTIFICATION, HOLDENS FINANCE OPTION, GENERAL HOLDENS BY DESIGN (HBD) FITTED ITEMS-(VALID THROUGH 2000) | 1998 | GM sourced |
| AA9 | 36 P, WINDOW, RR, BLACKOUT BANDED EDGE | 1997 | GM sourced |
| AAA | 1 P, EQUIPMENT, STANDARD FOR ABOVE VEHICLES | 1998 | Provisional |
| AAB | 2 P, MEMORY, DRIVER CONVENIENCE PACKAGE | 1998 | GM sourced |
| AAC | 3 P, PARTS PKG, SHIPPED LOOSE | 1990 | GM sourced |
| AAD | 4 P, WINDOW, BODY, LH | 1997 | GM sourced |
| AAE | 5 P, CCM, M, INTERIOR TRIM, - DELETE | 1998 | GM sourced |
| AAF | 2009 Oem Engine Physical ID Aaf & Production Number 12603557 | — | Reference |
| AAG | 7 P, MEMORY, PASS CONVENIENCE PACKAGE | 1998 | GM sourced |
| AAH | 8 P, RESTRAINT, KNEE, INFLATABLE, LH, 11213 E, 0 | — | GM sourced |
| AAI | Control A/trans, Mode, Economy/power | — | Reference |
| AAJ | 10 P, RESTRAINT, KNEE, INFLATABLE, RH, 11213 E, 0 | — | Provisional |
| AAK | Premium Floor Liners, 1st and 2nd rows (LPO dealer-installed accessory) | 2026 | GM sourced |
| AAL | Restraint Knee, Bolster, Lh/rh | — | Reference |
| AAM | Restraint,knee Bolster,driver | — | Reference |
| AAO | AEV Brand Floor liners (LPO dealer-installed accessory) | 2026 | GM sourced |
| AAP | Fleet Incentive US Investigation Services (d/w/3a/3z - Trk Stux) this code has more than one documented meaning — filter by year | — | Reference |
| AAQ | Adjuster Pass ST Power, 4 Way | — | Reference |
| AAR | Knee Bolster, Foam Type | — | Reference |
| AAS | 19 C, PAINT PROCESS, SOLID SPECIAL | 1990 | Provisional |
| AAT | 20 C, PAINT PROCESS, TWO TONE SPECIAL | 1990 | Provisional |
| AAV | Interior Trim Config - Delete | — | Reference |
| AAW | Interior Trim Config #17 | — | Reference |
| AAX | Interior Trim Config #18 | — | 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.