GM OUC60270, OHT01060512, HYQ1EA: Which GM Remote Is Which

OUC60270 (paired with OUC60221) is the 2006–2016 GM keyless entry remote for Buick, Cadillac, Chevrolet and GMC cars and SUVs — 315 MHz, no chip, in 4-, 5- and 6-button layouts. OHT01060512 is the 2010–2020 GM 5-button PEPS flip key (315 MHz, 46 chip) for Cruze, Malibu, Equinox, Terrain, LaCrosse and similar. OUC6000022, despite the same prefix, is a Ford code: in the catalog it is the 2005–2012 F-Series and Explorer remote head key, not a GM part. From 2014 the trucks moved to M3N32337100 remotes and HYQ1AA / HYQ1EA / HYQ1ES smart keys, the cars to HYQ4AA / HYQ4EA, and from 2021 the full-size trucks and SUVs use HUFGM2718 / YG0G21TB2. The tables below sort them by vehicle and year.

Why "OUC" does not mean GM

The letters before the numbers in an FCC ID are the grantee code of the company that certified the transmitter, not the vehicle maker. OUC, OHT, M3N, HYQ, NBG, LXP and HUF are all supplier codes. That is why OUC6000022 (Ford) and OUC60270 (GM) look related but fit completely different vehicles, and why HYQ shows up on both Toyota and GM keys. Read the whole ID, then confirm the part number. For the basics see how to find the FCC ID on a key fob.

OUC60270 / OUC60221: 2006–2016 GM keyless entry remotes

These are plain RKE remotes — no transponder, no blade — so the vehicle still uses a separate transponder key (B111 / B119 / B120 46-chip blanks). All are 315 MHz and aftermarket.

The Escalade also had its own 6-button remote under OUC6000066 (2007–2014, PN 20763094, 25842689, 20802901; product). FCC pages: /fcc/ouc60270, /fcc/ouc60221, /fcc/ouc6000066.

OHT01060512: 2010–2020 GM PEPS flip key

The 5-button flip key with a proximity function for GM's mid-size and compact cars of the 2010s. One catalog row: 315 MHz, PCF7941E / HITAG 2 / 46 chip, HU100 blade, fitting Buick Allure, Encore, LaCrosse, Regal, Verano and Chevrolet Camaro, Cruze, Equinox, Impala, Malibu, Sonic and GMC Terrain. Part numbers 13504199, 13574863, 5924369, 5912548, 5912556, 5913397; cross-references 13504204, 13504259, V2T01060512, V2T01060514 and OHT05918179. Product, FCC page /fcc/oht01060512.

The non-PEPS flip keys for the same small cars are LXP-T003 (2016–2020 Cruze, Sonic, 315 MHz, PN 5933405 / 13588756; product) and LXP-T004 (2016–2024 Cruze, Trax, 433 MHz, PN 13514135, 13513842; product). Same 46 chip, different frequency — check the band before ordering.

OUC6000022: the Ford remote that gets mistaken for GM

The catalog lists OUC6000022 once, as a 4-button remote head key for 2005–2012 Ford Expedition, Explorer, F-150 to F-750, Lincoln MKX and Navigator, Mazda and Mercury equivalents: 315 MHz, 4D-63+ DST80 chip, part numbers 164-R8067 and 5912561, cross-referencing CWTWB1U793. Product, FCC page /fcc/ouc6000022. If a customer with a GM truck quotes this code, they have read it off the wrong key. The Ford family is covered in Ford M3N and N5F fobs explained.

2014–2022 GM trucks and full-size SUVs: M3N32337100, HYQ1AA, HYQ1EA, HYQ1ES

The K2XX-generation trucks and SUVs split into keyed (RKE remote plus transponder key) and PEPS (smart key) trims. All aftermarket.

HYQ1AA and HYQ1EA fit the same 2015–2020 SUVs; the difference the catalog records is frequency (315 versus 433 MHz). Both use an NCF2951E / HITAG 2 / 46 chip. Read the frequency off the original fob or check the customer's other key before choosing. The Escalade of the same years uses HYQ2AB (2015–2020, 6-button, 315 MHz, PN 13580812; product).

2016–2023 GM cars and crossovers: HYQ4AA, HYQ4EA, HYQ4ES

All are 46-chip (NCF2951E / HITAG 2). As with the trucks, HYQ4AA versus HYQ4EA is a 315 versus 433 MHz split on overlapping models, so the frequency is the deciding detail.

2021+ full-size trucks and SUVs: HUFGM2718 / YG0G21TB2

The T1XX generation moved to a 49-chip (NCF29A1V / HITAG PRO) smart key: a 6-button for 2021–2025 Yukon, Suburban and Tahoe (434 MHz, PN 13548434, 13537964, 13541567 and others; product) and a 5-button for 2022–2024 Silverado and Sierra 1500 (433 MHz, PN 13548437, 13548440; product). The 2021–2024 Escalade uses YG0G20TB1 (6-button, 433 MHz, PN 13538864; product). These are not backward-compatible with the HYQ1 keys.

What Car Key Source stocks for GM

Everything above is a published product; older Cadillac smart keys (M3N5WY7777A for 2008–2015 CTS/STS, NBG009768T for 2010–2015 SRX/ATS/XTS) are listed on the Cadillac page. The Lonsdor CL30-01 Chevrolet-style universal smart key (ID46 / ID49 / ID4A, adjustable frequency) covers a range of the 46-chip applications above. In-stock orders placed by 4 PM ET (Mon–Fri) leave the warehouse the same business day. US orders ship from our Florida warehouse; Canadian orders ship from Ontario — nothing crosses the border, so there is no customs, duty or brokerage for the buyer. If a key or remote won't program on the vehicle we listed it against, it is refunded within 30 days of delivery and we pay the return freight. Browse Chevrolet and GMC, and see Chevrolet key fob programming and GMC key fob programming for the onboard and tool routes.

FAQ

Is OUC6000022 a GM remote?

No. In the Car Key Source catalog OUC6000022 is a 2005–2012 Ford F-Series, Expedition and Explorer remote head key. The GM remote with a similar prefix is OUC60270 / OUC60221.

What is the difference between OUC60270 and OUC60221?

They are listed together on every GM remote row as interchangeable FCC IDs for the same 315 MHz remote. Choose by button count and part number, not by which of the two codes is printed on the customer's fob.

Does the OUC60270 remote have a chip?

No. It is a keyless entry remote only; the vehicle still needs a 46-chip transponder key (B111, B119-PT or B120-PT blank depending on year and model).

HYQ1AA or HYQ1EA for a 2017 Tahoe?

Both are listed for 2015–2020 Suburban, Tahoe and Yukon. The catalog records HYQ1AA at 315 MHz and HYQ1EA at 433 MHz, so match the frequency of the customer's existing key or verify against the vehicle.

Which GM smart keys use a 49 chip instead of 46?

The 2021+ HUFGM2718 / YG0G21TB2 truck and SUV keys and the 2021+ YG0G20TB1 Escalade key are listed with NCF29A1V / HITAG PRO / 49 chips. Everything from OHT01060512 through HYQ1ES and HYQ4EA is 46-chip.