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| 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 1,078 codes beginning with T. One meaning shown per code — the best-sourced one we hold. Search above for the rest.
| Code | Meaning | Years | Sourcing |
|---|---|---|---|
| TN5 | P, BAT, R BATTERY, 44 AH this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| TN6 | P, BAT, R BATTERY, 55 AH this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| TN7 | P, BAT, R BATTERY, 66 AH this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| TN8 | P, BAT, R BATTERY, 88 AH | 1984 | GM sourced |
| TN9 | P, BAT, R BATTERY, 50 AH this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| TNA | P, TNK, M FUEL TANK, 304L, 80 GAL, SPACE SAVER. | 1998 | GM sourced |
| TNB | P, CHASSIS EQUIPMENT, RAISED FRAME HEIGHT | 1994 | GM sourced |
| TNC | C, FLP, R FLEET SALES, U-HAUL GO#S9272, 20509 | — | GM sourced |
| TND | C, FLP, R FLEET SALES, PENSKE GO# S2738, 622 | — | GM sourced |
| TNE | P, FRQ, R FRAME, 34 IN WIDTH | 1998 | GM sourced |
| TNF | P, RAD, R RADIATOR, SIDE MT, W/HYDROSTATIC FAN | 1998 | GM sourced |
| TNG | P, SWL, M STEERING WHEEL, 18 IN DIA, W/CTR MT CONTROLS | 1998 | GM sourced |
| TNH | P, INDICATOR, REMOTE MT A/CL RESTRICTION | 1994 | GM sourced |
| TNI | P, EQUIPMENT, SIDE INL A/CL ELBOW | 1994 | GM sourced |
| TNJ | P, PROVISIONS, REMOTE AUX AIR INFLATION | 1994 | GM sourced |
| TNK | Family Code, Fuel Tank | 1988 | GM dated |
| TNL | P, BAT, R BATTERY, 1110 CCA, (TWO) 12V this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TNM | C, FLP, R FLEET SALES, COCA COLA GO# S9534, 20618 | — | GM sourced |
| TNN | P, BAT, R BATTERY, 1150 CCA, (TWO) DELCO 12V this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TNO | P, SHAFT, STRG COL INT SLIP this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| TNP | P, BAT, R BATTERY, 28 AH | 1998 | GM sourced |
| TNQ | P, BAT, R BATTERY, 1150 CCA, (ONE) DELCO 12V this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TNR | P, BAT, R BATTERY, 1150 CCA, (THREE) DELCO 12V this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TNS | C, FLP, R FLEET SALES, RYDER GO# R0213 | 1999 | GM sourced |
| TNT | P, BAT, R BATTERY, 38 AH | 1998 | Provisional |
| TNU | C, FLP, R FLEET SALES, STAR RENTAL | 1999 | GM sourced |
| TNV | C, FLP, R FLEET SALES, RYDER/BUDGET GO# S4589, 801 | — | Provisional |
| TNW | C, FLP, R, FLEET SALES, MATCO TOOL | 1999 | GM sourced |
| TNX | C, FLP, R, FLEET SALES, FRITO LAY GO# C1652 | 1999 | GM sourced |
| TNY | C, FLP, R, FLEET SALES, U-HAUL GO# 2001, 605 | — | Provisional |
| TNZ | C, FLP, R, FLEET SALES, PENSKE GO#C2159,C2342,C2343,C2672 this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| TO1 | Package Cxl Peg 1 | — | Reference |
| TO2 | Package Cxl Peg 2 | — | Reference |
| TO3 | Package Cxs Peg 3 | — | Reference |
| TO4 | Package Cxl Peg 4 | — | Reference |
| TO5 | Package Cxl Peg 5 | — | Reference |
| TO6 | Package Cxs Peg 6 | — | Reference |
| TO7 | Package Cxl Peg 7 | — | Reference |
| TOA | C, FLP, R, FLEET SALES, BOUNDARY ELECTRIC GO# B5344 | 1998 | GM sourced |
| TOB | C, FLP, R, FLEET SALES, NATIONS WAY TRANSPORT SERVICE GO# C0868 | 1998 | GM sourced |
| TOD | C, FLP, R, FLEET SALES, STATE OF NORTH CAROLINA | 1994 | GM sourced |
| TOF | C, FLP, R, FLEET SALES, NIAGARA MOHAWK GO# F8864, 65, 66 | 1998 | GM sourced |
| TOG | C, FLP, R, FLEET SALES, CON AGRA GO# G1901, G1902, G1903 | 1998 | GM sourced |
| TOH | C, FLP, R, FLEET SALES, SCHWANS GO# F4986, F4987, F4988 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TOI | C, FLP, R, FLEET SALES, NIAGARA MOHAWK GO# F8864-69, F6601, 02 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TOJ | C, FLP, R, FLEET SALES, RYDER GO# R5392 THRU R5395 this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| TOK | C, FLP, R, FLEET SALES, RYDER GO# R5463 this code has more than one documented meaning — filter by year | 1994 | GM sourced |
| TOL | C, FLP, R, FLEET SALES, PENSKE TRUCK LEASING GO# G5044 | 1994 | GM sourced |
| TOM | C, FLP, R, FLEET SALES, ALLEGHENY POWER G0# G4296, G4327, G4328 | 1998 | GM sourced |
| TON | P, FLP, R, FLEET SALES, NORTH CAROLINA DEPT OF TRANSPORTATION | 1994 | GM sourced |
| TOQ | C, FLP, R, FLEET SALES, SCHWANS GO# N2803 | 1998 | GM sourced |
| TOR | C, FLP, R, FLEET SALES, BELL SOUTH SERVICES S/O #G8028 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TOS | C, FLP, R, FLEET SALES, STATE OF NORTH CAROLINA GO# G8577-80 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TOT | C, FLP, R, FLEET SALES, SCHWANS CANADA GO# H5496 | 1998 | GM sourced |
| TOU | C, FLP, R, FLEET SALES, SCHWANS GO# T0348 this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| TOV | C, FLP, R, FLEET SALES, RYDER GO# R6041-42 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TOX | C, FLP, R, FLEET SALES, PENSKE TRUCK LEASING GO# K8061-5 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TOY | C, FLP, R, FLEET SALES, DISNEY IMAGINEERING this code has more than one documented meaning — filter by year | 1995 | GM sourced |
| TOZ | C, FLP, R, FLEET SALES, P.G. & E. GO# L4282 | 1998 | GM sourced |
| TP0 | P, BAT, R, BATTERY, DRIVE MOTOR, LEAD ACID | 1995 | GM sourced |
| TP1 | P, BAT, R, BATTERY, DRIVE MOTOR, NICKEL METAL HYDRIDE this code has more than one documented meaning — filter by year | 1995 | GM sourced |
| TP2 | P, BAT, R, BATTERY, AUXILIARY | 1996 | GM sourced |
| TP3 | P, BAT, R, BATTERY, 600 CCA (DUAL) this code has more than one documented meaning — filter by year | 1996 | GM sourced |
| TP4 | P, BAT, R, BATTERY, 45 AH | 1997 | GM sourced |
| TP5 | P, REFLECTOR, BUMPER | 1989 | GM sourced |
| TP6 | P, BAT, R, BATTERY, DRIVE MOTOR, HIGH CAPACITY LEAD ACID | 1998 | Provisional |
| TP7 | P, BAT, R, BATTERY, 65 AH (DUAL) | 1997 | Provisional |
| TP8 | P, BAT, R, BATTERY, HOT WEATHER | 1997 | GM sourced |
| TP9 | P, BAT, R, BATTERY, 690 CCA (DUAL) | 1996 | GM sourced |
| TPA | C, FLP, R, FLEET SALES, BRAZIL GO# K9019 THRU K9025 | 1995 | GM sourced |
| TPB | C, FLP, R, FLEET SALES, BURLINGTON NORTHERN GO# F3504, ETC | 1998 | GM sourced |
| TPC | C, FLP, R, FLEET SALES, BURLINGTON NORTHERN GO# F3505, ETC | 1998 | GM sourced |
| TPD | C, FLP, R, FLEET SALES, BURLINGTON NORTHERN GO# F3507, ETC | 1998 | GM sourced |
| TPE | C, FLP, R, FLEET SALES, CENTRAL & SOUTHWEST GO# F3924 | 1998 | GM sourced |
| TPF | C, FLP, R, FLEET SALES, NATIONAL PROPANE GAS GO# A3260, ETC | 1998 | GM sourced |
| TPG | C, FLP, R, FLEET SALES, MILLER INDUSTRIES GO#A0341 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TPH | C, FLP, R, FLEET SALES, U HAUL INTERNATIONAL GO#B2110 ETC. | 1998 | GM sourced |
| TPI | C, FLP, R, FLEET SALES, PIKE ELECTRIC GO #'S B6921,ETC. | 1998 | GM sourced |
| TPK | Family Code, Trailer Provisions | 1989 | GM dated |
| TPL | P, BAT, R, BATTERY, 750 CCA, (THREE) DELCO 1110 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TPM | C, EQUIPMENT, AIR TANK MODIFICATION this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| TPN | C, FLP, R, FLEET SALES, ARI GO #C2150 | 1999 | GM sourced |
| TPP | C, FLP, R, FLEET SALES, PENSKE GO#C1685 this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| TPQ | C, FLP, R, FLEET SALES, FERRARA GO#C1831 | 1999 | GM sourced |
| TPR | C, FLP, R, FLEET SALES, STATE OF VIRGINIA GO#C1766,C1770 | 1999 | GM sourced |
| TPS | Family Code, Roof Covering this code has more than one documented meaning — filter by year | 1988 | GM dated |
| TPT | C, FLP, R, FLEET SALES, PENSKE TRUCK LEASING GO# T2682, 20628 | — | GM sourced |
| TPU | C, FLP, R, FLEET SALES, ROLLINS LEASING GO#6708 | 1999 | GM sourced |
| TPV | P, GRL, R, GRILLE, RADIATOR, BLACK, W/CHROME BAR, 11126 E, 0 | — | GM sourced |
| TPW | C, FLP, R, FLEET SALES, TRAF MARK GO# S8039, 1011 | — | Provisional |
| TPX | Battery Box,rh Rail Mounted Behind Cab Metal *max Four Batteries* this code has more than one documented meaning — filter by year | — | Reference |
| TPY | C, FLP, R, FLEET SALES, STATE OF NORTH CAROLINA GO# S6201, 830 | — | GM sourced |
| TPZ | C, FLP, R, FLEET SALES, PORT AUTHORITY ALLEGHENY GO# S4210, 728 | — | Provisional |
| TQ0 | P, BAT, R, BATTERY, 66 AH, LOW MAINTENANCE | 1999 | GM sourced |
| TQ1 | P, BAT, R, BATTERY, 48 AH | 1999 | Provisional |
| TQ3 | P, BAT, R, BATTERY, 770 CCA (DUAL) this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| TQ4 | P, BAT, R, BATTERY, 400 CCA, 20620 | — | Provisional |
| TQ5 | IntelliBeam | 2026 | GM sourced |
| TQ6 | P, BAT, R, BATTERY, 380 CCA, 20114 | — | Provisional |
| TQ7 | P, BAT, R, BATTERY, 355 CCA, 20114 | — | Provisional |
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.