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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 601–700 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 |
|---|---|---|---|
| TKD | P, FLP, R FLEET SALES, PENSKE | 1991 | GM sourced |
| TKE | C, FLP, R FLEET SALES, FERRELL GAS GO# H3776, H3777, H2583 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKF | P, FLP, R FLEET SALES, HERSCHELMAN GO# M8087 & M8138 this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| TKG | C, FLP, R FLEET SALES, COLOMOTORES GO# M9005 THRU M9013 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKH | P, FLP, R FLEET SALES, CUSTOMER TO FOLLOW | 1991 | GM sourced |
| TKI | C, FLP, R FLEET SALES, T&B ENGRG GO# M9198 this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| TKJ | C, FLP, R FLEET SALES, BUDGET GO# R2020, 20205 this code has more than one documented meaning — filter by year | — | GM sourced |
| TKK | P, FLP, R FLEET SALES, SCHWANS GO# N1837, 41, 45, 1847 THRU 50, N1863, 65 & 66 | 1998 | GM sourced |
| TKL | P, FLP, R FLEET SALES, SCHWANS GO# N1838, 39, 40, 42, 43, 44, 51 THRU 62 & N1864 | 1998 | GM sourced |
| TKM | C, FLP, R FLEET SALES, PENNSYLVANIA GO# N2745, N4747 | 1998 | GM sourced |
| TKN | C, FLP, R FLEET SALES, PENN POWER & LIGHT GO# E4606 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKO | C, FLP, R FLEET SALES, CARLAND, INC GO# P1800, 01 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKP | C, FLP, R FLEET SALES, D.C. EMERGENCY GO# N3880 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKQ | C, FLP, R FLEET SALES, LEASEWAY CORP GO# N3949 | 1998 | GM sourced |
| TKR | C, FLP, R FLEET SALES, ELGIN SWEEPER GO# N5687, 804 this code has more than one documented meaning — filter by year | — | GM sourced |
| TKS | C, FLP, R FLEET SALES, CANADA POST CORPORATION | 1993 | GM sourced |
| TKT | C, FLP, R FLEET SALES, PENSKE TRUCK LEASING GO# N0014 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKU | C, FLP, R FLEET SALES, STATE OF CALIFORNIA GO# N0045, 46, 47, 48 | 1998 | GM sourced |
| TKV | C, FLP, R FLEET SALES, CAPITAL REGION AIRPORT COM S/O# K7687 | 1998 | GM sourced |
| TKW | C, FLP, R FLEET SALES, SCHWANS GO# K3037, K4230, K4231 this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| TKX | C, FLP, R FLEET SALES, P.G. & E. GO# N0123 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKY | C, FLP, R FLEET SALES, NIAGARA MOHAWK GO# N0169 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TKZ | C, FLP, R FLEET SALES, NIAGARA MOHAWK GO# N0069 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TL0 | P, FIN, R FLEET INCENTIVE, KENNAMETAL, INC (H/N/W-TRK CKG) | 1998 | GM sourced |
| TL1 | P, GRL, R GRILLE, SPECIAL this code has more than one documented meaning — filter by year | 1983 | GM sourced |
| TL2 | P, FIN, R FLEET INCENTIVE, MISSISSIPPI LIME COMPANY (TRK CKG), 929 | — | Provisional |
| TL3 | P, FIN, R FLEET INCENTIVE, TERRACON (N/W-TRK G), 10205 | — | Provisional |
| TL4 | P, GRL, R GRILLE, PAINTED this code has more than one documented meaning — filter by year | 1984 | GM sourced |
| TL5 | P, FLEET PROGRAM, PRE DELIVERY, INSPECTION NOT ALLOWED | 1992 | GM sourced |
| TL6 | P, GRL, R GRILLE, RADIATOR, BLACK this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TL7 | P, FIN, R FLEET INCENTIVE, SYN TEC INCORPORATED (U/W-TRK CKST), 10824 | — | Provisional |
| TL8 | P, FIN, R FLEET INCENTIVE, SYNCOR INTERNATIONSL (N/W-TRK MLST), 10829 | — | GM sourced |
| TL9 | P, FIN, R FLEET INCENTIVE, STUDIO LEASE DEALER INCENTIVE (B/C/F/H/J/K/N/S/U/W/Y-TRK CKGMLSTJ), 10829 | — | Provisional |
| TLA | C, FLP, R FLEET SALES, STATE OF CALIFORNIA GO# H0161 | 1998 | GM sourced |
| TLB | C, FLP, R FLEET SALES, SCHWANS GO# A0024, A0026-27 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLC | Family Code, Trim Equipment | 1988 | GM dated |
| TLD | C, FLP, R FLEET SALES, STATE OF CALIFORNIA GO# N0056, N0164, N0291 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLE | C, FLP, R FLEET SALES, AMERICAN FIRE APPARATUS GO# N0222 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLF | C, FLP, R FLEET SALES, T&B ENGRG GO# P3673 this code has more than one documented meaning — filter by year | 1997 | GM sourced |
| TLG | C, FLP, R FLEET SALES, RYDER GO# R0007, R0009, R0011 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLH | C, FLP, R FLEET SALES, RYDER GO# R3407 | 1998 | GM sourced |
| TLI | C, FLP, R FLEET SALES, PACIFIC UTILITY LEASING GO# P4587 | 1998 | GM sourced |
| TLJ | C, FLP, R FLEET SALES, PENSKE TRUCK LEASING GO# P2868 THRU P2872, P4095, P4672 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLK | C, FLP, R FLEET SALES, BELGRADE, ME TOWN OF, GO# P4376 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLL | C, FLP, R FLEET SALES, SCHWANS SO# A0023-A0025 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLM | C, FLP, R FLEET SALES, MCKESSON CORP GO# P6908 & P6909 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLN | C, FLP, R FLEET SALES, ALTEC IND, INC GO# P7522 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLO | C, FLP, R FLEET SALES, ALTEC IND, INC GO# P8648 | 1998 | GM sourced |
| TLP | C, FLP, R FLEET SALES, SAN FRANCISCO NEWSPAPER AGENCY | 1994 | GM sourced |
| TLQ | C, FLP, R FLEET SALES, NIAGARA MOHAWK S/O# Q4802 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLR | Family Code, Wiring Harness | 1989 | GM dated |
| TLS | C, FLP, R FLEET SALES, STATE OF NEW JERSEY GO# N4130 & N4131 | 1998 | GM sourced |
| TLT | C, FLP, R FLEET SALES, SAFTEY KLEEN | 1993 | GM sourced |
| TLU | C, FLP, R FLEET SALES, NIAGARA MOHAWK GO# A0881-2 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLV | Family Code, Trim Color Seat | 1999 | GM dated |
| TLW | C, FLP, R FLEET SALES, COMMONWEALTH OF VA GO# A0323 & A2523 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLX | C, FLP, R FLEET SALES, STATE OF VIRGINIA GO# A2564 | 1998 | GM sourced |
| TLY | C, FLP, R FLEET SALES, STATE OF VIRGINIA GO# A2498-99-A2500, A2769 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TLZ | C, FLP, R FLEET SALES, AAA COOPER TRANSPORTATION GO# A2613 | 1998 | GM sourced |
| TM0 | P, BAT, R BATTERY, 900 CCA (DUAL) this code has more than one documented meaning — filter by year | 1986 | GM sourced |
| TM1 | P, BAT, R BATTERY, 600 CCA this code has more than one documented meaning — filter by year | 1992 | GM sourced |
| TM2 | P, BAT, R BATTERY, 770 CCA this code has more than one documented meaning — filter by year | 1986 | GM sourced |
| TM3 | P, BAT, R BATTERY, 540 CCA this code has more than one documented meaning — filter by year | 1986 | GM sourced |
| TM4 | P, BAT, R BATTERY, 1125 CCA (TWO) this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TM5 | P, BAT, R BATTERY, 54 AH | 1995 | Provisional |
| TM6 | P, BAT, R BATTERY, 36 AH | 1988 | GM sourced |
| TM7 | P, BAT, R BATTERY, 60 AH | 1988 | GM sourced |
| TM8 | P, BAT, R BATTERY, 85 AH | 1990 | GM sourced |
| TM9 | P, BAT, R BATTERY, 63 AH | 1994 | Provisional |
| TMA | C, HLG, R HANDLING CHARGE, CROWN DIVISION 12 V | 1991 | GM sourced |
| TMB | C, FLP, R FLEET SALES, HENRICO COUNTY GO# A3551 | 1998 | GM sourced |
| TMC | C, FLP, R FLEET SALES, HARKERS LEASING CORP GO# A5057 | 1998 | GM sourced |
| TMD | C, FLP, R FLEET SALES, STATE OF NORTH DAKOTA GO# B1081 & B1152 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TME | C, FLP, R FLEET SALES, STATE OF VIRGINIA GO# A5215 | 1998 | GM sourced |
| TMF | C, FLP, R FLEET SALES, T&B ENGRG GO# A7115, A7117, A8682, 83, 84, 85, 38 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMG | C, FLP, R FLEET SALES, HARKERS LEASING CORP GO# A5055 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMH | C, FLP, R FLEET SALES, CONSUMERS POWER CO GO# A5409 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMI | C, FLP, R FLEET SALES, CONSUMERS POWER CO GO# A8236 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMJ | C, FLP, R FLEET SALES, CONSUMERS POWER CO GO# A8146 THRU A8151 | 1998 | GM sourced |
| TMK | C, FLP, R FLEET SALES, STATE OF NORTH CAROLINA GO# A9448 THRU A9451 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TML | C, FLP, R FLEET SALES, NIAGARA MOHAWK GO# A8440 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMM | C, FLP, R FLEET SALES, GELC LEASING GO# A8596 & A9038 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMN | C, FLP, R FLEET SALES, U-HAUL, ISUZU NPR | 1993 | GM sourced |
| TMO | P, FIN, R FLEET INCENTIVE, OSMOSE WOOD PRESERVING COMPANY, INC. (J/N/U/W-TRK CKGMLST), 21030 | — | GM sourced |
| TMP | C, FLP, R FLEET SALES, PENSKE TRUCK LEASING GO# A9409 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMQ | C, FLP, R FLEET SALES, DETROIT EDISON GO# A8937 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMR | C, FLP, R FLEET SALES, DETROIT EDISON GO# A8938 | 1998 | GM sourced |
| TMS | C, FLP, R FLEET SALES, DETROIT EDISON GO# B1792 | 1998 | GM sourced |
| TMT | C, FLP, R FLEET SALES, MAC TOOL | 1993 | GM sourced |
| TMU | C, FLP, R FLEET SALES, METRO LEASING GO# F7109 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMV | C, FLP, R FLEET SALES, CITY OF HONOLULU GO# D4330 this code has more than one documented meaning — filter by year | 1999 | GM sourced |
| TMW | C, FLP, R FLEET SALES, T&B ENGRG GO# A8686 | 1998 | GM sourced |
| TMX | C, FLP, R FLEET SALES, LOWES COMPANIES, INC GO# B1559, B1560 | 1998 | GM sourced |
| TMY | C, FLP, R FLEET SALES, MCKESSON WATER GO# A0500, B1333 this code has more than one documented meaning — filter by year | 1998 | GM sourced |
| TMZ | C, FLP, R FLEET SALES, LESHER FIRE EQUIPMENT | 1993 | GM sourced |
| TN0 | P, BAT, R BATTERY, 65 AH, 21011 E, 5 | — | Provisional |
| TN1 | P, PROVISIONS, DUTY FREE | 1998 | GM sourced |
| TN2 | P, BAT, R BATTERY, LIGHT DUTY | 1992 | GM sourced |
| TN3 | P, BAT, R BATTERY, MAINTENANCE FREE, HEAVY DUTY | 1983 | GM sourced |
| TN4 | P, BAT, R BATTERY, 42 AH, MAINTENANCE FREE | 1993 | 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.