How Toyota Solara Keys Changed Over the Years
First Generation (XV20)
Your first gen Solara uses a TX00-4C (ID33) transponder chip inside a standard blade remote head key with three buttons. The chip talks to Toyota's immobilizer system every time you turn the ignition, and without that handshake, the engine will not start. We program these on-board through the OBD port, so there is no towing and no waiting.
First Gen, New Chip
Your 2004 XV20 Solara looks the same on the outside, but Toyota swapped in a Toyota 4D-67 (Texas 4D) transponder chip under the hood. Same three-button remote head key, same FCC ID GQ43VT14T, but the chip change means you need the right blank or the immobilizer will reject it. We verify chip type before we cut anything.
Second Generation (XV30)
Your second gen Solara moved to the XV30 platform and uses a Toyota 4D-67 (Texas 4D-67) chip with a new FCC ID: GQ43VT20T. Still a three-button remote head key with a standard blade, and the remote fob takes a CR2032 battery. Programming is still on-board, which keeps things fast and affordable.
Late Second Gen (XV30)
Your late model 2007 or 2008 Solara still runs the Toyota 4D-67 (Texas 4D-67) chip, but some of these need EEPROM access if the standard on-board method does not take. We always try on-board first because it is faster and cheaper. If your car needs the deeper approach, we have the tools on the truck to handle it.
Which Key Does Your Solara Use?
A metal key with a chunky plastic head that has lock, unlock, and panic buttons built in. The transponder chip inside is what lets your engine start.
Looks identical to the earlier key, but the internal chip changed to a Toyota 4D-67 (Texas 4D). Getting the wrong blank means the key turns but the car will not start.
Updated remote head key for the second generation. Three buttons, standard blade, and a CR2032 battery inside the fob. The 4D-67 chip communicates with a slightly updated immobilizer.
Same key style as the rest of the second gen, but some late models may require a different programming approach. We test on-board first and go from there.
Solara Key Pricing in Ventura County
Every price includes the key blank, cutting, transponder programming, and remote programming, tested before we leave.
Us vs. the Dealer
We are a local Ventura County business, not a service department that treats you like a ticket number.
Common Solara Key Problems
Transponder Key Failure
First check is transponder signal strength. The chip inside Solara key can weaken, and when the immobilizer cannot read it the engine will not crank though the key turns. If the chip is failing, we cut and program a fresh key on-site. Affects all years, 1999-2008.
Remote Programming Lockout
The on-board programming requires precise steps within 5-second, 40-second, and 3-second windows, and missing any kicks you out of programming mode entirely. We handle this with the right tools so timing is not an issue.
Ignition Lock Cylinder Wear
Key feels sticky, grinds, or will not turn. On 2004-2008 Solaras the ignition cylinder wears, and the integration relay in the anti-theft system can compound it with warning lights or a no-start. We diagnose cylinder, relay, or both before recommending a fix.
Can You Program a Solara Key Yourself?
You can program the remote buttons yourself using a door cylinder sequence, but only if you already have a working remote to start the process. The transponder chip still needs professional programming with an OBD tool, so the remote will lock and unlock your doors but you will need us to make the engine start.
No confirmed DIY method exists for the 2004 transition year. Both the transponder and the remote need professional programming equipment. Call us at (805) 790-8162 and we will handle it on-site.
The second generation Solara does not support reliable self-programming for remotes or transponders. Some unverified sequences float around online, but they are inconsistent and can lock you out of programming mode. We bring the right tools and get it done the first time.
How It Works

Call or Text Us
Reach us at (805) 790-8162.

We Drive to You
Wherever you are in Ventura County, whether that is a parking lot in Oxnard or your driveway in Simi Valley, we come to you.

Cut, Program, and Test
We cut your new Solara key on-site, program the transponder chip through the OBD port using Autel IM608 or Xhorse VVDI, sync the remote buttons, and test everything before we pack up.
Related Services
Did You Know?
Most people do not know this: the 1999-2008 Toyota Solara shares its platform with the Camry, which means the key systems overlap in ways that surprise even some locksmiths. Toyota essentially took the Camry sedan, lopped off two doors, restyled the body, and created a coupe and convertible that shared much of the same underpinnings. In many cases, Solara and Camry keys from the same generation are interchangeable at the hardware level.
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