Self-programming of Toyota Remote Key Fobs with FCC ID GQ43VT20T

It seems Toyota Tundra engineers went a little bonkers with respect to self-programming of factory keyless entry remotes a decade ago. Toyota used keyfobs with FCC ID GQ43VT20T on many vehicles from as early as 2004 to as late as 2017. This family of remote transmitters was used on Avalon and Solara sedans, Sienna vans, Highlander and Sequoia SUVs and Tacoma and Tundra trucks. In short, they appear on a lot of vehicles. See the many GQ43VT20T remote button configurations at the following link: Toyota Remotes with FCC ID GQ43VT20T
For many vehicle model years, these parts are user-programmable, meaning that an owner can program the vehicle him or herself to add a new remote transmitter. Up until the 2008 model year, every vehicle that used this part was user programmable. Then, for some unknown reason, Toyota changed something so that 2008 Tundras require a special computer “scan” tool for programming. The following year, Toyota switched back so that 2009 Tundra trucks were again user programmable. And then, in 2010, they switched back for good to requiring scan tool programming. This kind of flip-flopping is very unusual in the auto industry, though not unprecedented.

Maybe Toyota engineers just want to keep us all on our toes?!

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GM’s Confusing Practice: Look-a-Like Remote Key Fobs That Are Not Interchangeable

Many vehicle manufacturers and add-on (aftermarket) alarm companies have made it a practice to employ remote transmitters that look identical with each other while not being interchangeable in use. GM is perhaps the worst offender in terms of doing this.

We recently received an email from a consumer who bought a replacement GM remote with OE part number 20935330, thinking it would work for the identical-looking key fob on her Buick Lacrosse. When it could not be programmed to work with her vehicle, she contacted us. Here is our response:

“You are correct that GM part 20935330 (equivalent to Remotes Unlimited part 814-1814) looks like the 4-button remote you need for your 2007 Buick LaCrosse, but, instead, your vehicle uses GM part 15252034 (Remotes Unlimited part 717-1717). In that period, Buick Allure and LaCrosse sedans used remotes made by Lear with FCC ID KOBGT04A. Part 20935330 is made by Omron and has an FCC ID beginning with OUC. This part was used on Buick Lucerne, but never on Allure or LaCrosse cars.”

Actually, GM created an even more confusing situation a few years before with the 2005 Buick LaCrosse and several other sedans. They installed systems, on the same model and in the same year, that both used identical remotes with FCC ID KOBGT04A, but which are not interchangeable. While some 2005 LaCrosse vehicles use part 15252034, others use GM part number 22733523 or 10305091 (Remotes Unlimited part 508-1508).

Go figure. Maybe GM is intentionally working to make life hard for their customers . . . or maybe they are just driving up inventory for their dealers. Who knows?

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Replacement Remote Key Fob for Cool Start (CrimeStopper) Transmitter CS-409TX

We recently received an inquiry from a woman looking for a replacement remote for an older Cool Start (CrimeStopper) system that originally used transmitter part number CS-409TX. That remote is no longer made. But there are newer remotes made by CrimeStopper that replace discontinued key fobs from many older systems.

The CS-409TX remote can be replaced by our part number 071-6497. The price is $49.00. Programming instructions and free phone technical support are included with purchase. You can see both parts and purchase 071-6497 at the following link to our website:
CS-409TX replaced by 071-6497

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Audiovox Prestige Alarm Remote Key Fob with FCC ID ELVATCB

A customer contacted Remotes Unlimited to ask about a replacement for his 4-button Prestige alarm system transmitter with FCC ID ELVATCB. This remote – our part number 656-1656 – is no longer made. We no longer have any new 656-1656 parts in stock. However, we do have both B-grade (used) 656-1656 parts in stock and also factory new remotes of part 263-1263, which is a compatible Prestige part with FCC ID ELVAT0H and a slightly different button configuration.

Both of these parts can be seen at the following link:
Audiovox Prestige Remote with FCC ID ELVATCB

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1-button DEI (Directed Electronics) Remote Start Transmitters

Directed Electronics, DEI, has sold many add-on remote start systems that use 1-button keyfob transmitters. These systems have been sold under the brands AutoMate, Avital, Clifford, Python, Ready Remote, and Viper. The most common FCC IDs on these remotes are EZSDEI471H, EZSDEI7113 and EZSDEI7116. Many of these key fobs are no longer made, but Remotes Unlimited has many of them in stock either as a new remote or as a B-Grade remote. B-Grade remotes are used remotes that have been cleaned, tested and given a new battery.

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Programming Stand-Alone Ford Keyfob Remotes To Replace Integrated Keyhead Remote Transmitters

Beginning around 2007, Ford started moving from use of stand-alone keys and remote fobs to use of an integrated part with the remote transmitter functions in the key head. In doing so, they did not change the transmitter technology for many years thereafter. So, stand-alone remotes can be used to replace the transmitter functions of a Ford keyhead part through 2014 or so.

In addition to the keyless entry transmitter technology, an integrated keyhead part has a transponder in it that interacts with the anti-theft system in the steering column. To use either a new integrated keyhead part or a stand-alone remote with one of these Ford vehicles, systems in the vehicle have to be programmed to accept the new part.

Programming a vehicle oneself to accept the anti-theft transponder in a new keyhead part involves a procedure that requires two distinct keys that already work for the vehicle. This programming procedure also supports programming of the transmitter functions.

If one is adding a stand-alone key fob remote only, a second procedure that only requires one key can be used.

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Replacement Subaru (Alpine) Keyless Entry Remote Key Fob with FCC ID A269ZUA111

Recently, Remotes Unlimited received an email from a website visitor who wanted to replace his “lost Alpine car alarm fob B30611753 used on 2004 Subaru Forester”. We suspected that B30611753 was a serial number, not a part number. Here is our response to the customer:

Alpine made early keyless entry systems that were used on Subaru Foresters and other models. The most common Alpine remote used by Subaru is our part 112-1112, a 2-button remote with FCC ID A269ZUA111. You can see it at the following link:
Subaru remote with FCC ID A269ZUA111

You can see from our website that Subaru has discontinued production of part 112-1112 and replaced it with a newer “teardrop” style remote, which is our part number 621-1621. We have both B-grade (gently used) 112-1112 remotes and new 621-1621 transmitters available.

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Replacement Remote Key Fobs for Audiovox, Code Alarm and DEI Remote Start Systems

Audiovox, Code Alarm and DEI (Directed Electronics) sell remote start systems under numerous brands, including Automate, Avital, Clifford, Prestige, Pursuit, Python and Viper. Automobile dealers and also tint/alarm shops install these systems. Many blog readers comment or call us to find out where they can get replacement remotes for these systems. Remotes Unlimited offers a broad assortment of replacement keyfobs for remote start systems.

One of the most common remotes is DEI part 7111A/7111L/7111P/7111V, a 1-button remote with FCC ID EZSDEI471H. The logo varies depending on whether the system is branded Automate, Avital, Python or Viper, but the circuit board inside is the same for all of these parts. Some versions are no longer made by DEI, but Remotes Unlimited has a good inventory of these parts. See an example of the Automate remote at the following link:
Automate part 7111A – 1-button remote with FCC ID EZSDEI471H

Another common remote is the tiny 1-button Code Alarm remote with FCC ID GOH-PCMINI. This remote was used on dealer-installed remote start systems with numerous brands on the remote. See samples of this remote at the following link:
1-button remote start key fob with FCC ID GOH-PCMINI

Remotes Unlimited has these transmitters on sale for $39 each right now. (In many cases, we have gently-used B-grade keyfobs available for $24.) The systems that use these remotes are user programmable for adding a new remote. Programming instructions and free phone technical support are included with purchase.

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Replacement Remote Key Fob for 1998-2002 Mazda 626 Equipped with Factory Keyless Entry

A blog reader asked about replacement remote options for a 2000 Mazda 626. Here is our response:

The correct replacement remote for a 2000 Mazda 626 is our part number 617-1617. You can see this part at the link below:
1998-2002 Mazda 626 remote

The listing on our website is for a new part with a price of $67.00. We do also have used (B-grade) remotes for $24.00 and refurbished (R-grade) remotes for $34.00. Both of these parts have been tested and will come with a new battery. The difference between these keyfobs is that the R-grade remote has a new replacement case. Both carry a 30-day warranty. (Under normal use, a working circuit board will generally continue to work for a long time.) We do not sell these through our website, so you would need to contact our customer service department at 877-719-1900 (or 281-820-0300) and choose option 2 for sales. They will be open again at 8:00am Central time on Monday.

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Did you know? . . . With Remote Key Fobs, Looks Can Be Deceiving

Many people are confused by remote transmitters because looks can be deceiving. Some people think that two remotes that look the same must be interchangeable, but this is not always the case. For instance the two Nissan remotes in the links below are not interchangeable:
2003-2006 Nissan Sentra remote with FCC ID CWTWB1U429
Nissan remote with FCC ID KBRASTU15 used on many vehicles

And some people think that two remotes that look very different cannot be interchangeable. While this is often true, sometimes it is not, as with the two Nissan remotes below:
Nissan remote with FCC ID KBRASTU10 (Model 01A)
Nissan remote with FCC ID CWTWB1U733

So, whenever you are buying a replacement keyfob, be certain you are buying the right part. A good place to start is buying the remote from a company that really knows what they are selling! Advance Auto, CARQUEST and Pep Boys all sell our remotes.

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