2019 Lexus RX
Key Replacement - Save vs Dealer in Ventura County
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2019 Lexus RX
Key Options
Dealer-grade key for a fair, honest price
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2019 Lexus RX Smart Key Replacement - Fast, Affordable & Professional
Got a call from someone at Community Memorial Hospital in Ventura. She was sitting in the parking structure with her 2019 RX, dash reading "Key not detected," doors locked with the fob inside, engine off. She had been visiting someone post-surgery and came back to a car that acted like it didn't know her.
I got there and used my TOY48 Lishi to decode the driver door. Popped it open, grabbed her fob off the center console, and cracked the HYQ14FBB housing. The CR1632 had voltage but barely, reading 2.4V when these need to be above 2.8 to communicate reliably. Swapped it, held the fob to the push-start button, and the immobilizer released. Engine turned over clean.
But I didn't stop there. Ran the key through my diagnostic tool on the OBD-II port to check registration status on the smart key ECU (board 89990-0E030 on these). Both her fobs were still registered, no corruption, no fault codes stored. Just a dying battery that made the 314.3 MHz signal too weak for the cabin antenna to pick up from the console.
She thought the car was broken. Whole thing took about fifteen minutes. She walked back into the hospital with her keys working and no trip to the dealer scheduled.
Save vs the Dealer on Your Lexus RX Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
Lexus RX Rapid Response, Done Right
Rapid response in the field
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“Tim went above and beyond. I struggled all day trying to program a new FOB and nothing worked. Tim helped me patiently, even recommending cheaper options since I was on a tight budget. He eventually came all the way to Ojai late at night and fixed everything.”
“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”
“Needed a spare car key made and chose EZ Car Keyz based on their reviews. The reviews were right. They gave me the best price, responded quickly to all my questions, came to my workplace, cut the keys on site, and finished fast.”
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