Lexus RX Key Fob Replacement
Lost the key or need a spare fob for your Lexus RX? A mobile locksmith comes to you and programs it on-site, same day, well under dealer pricing.
Need a Lexus RX key or fob replaced? We come to you in McKinney or anywhere in North Dallas, cut and program a new RX fob on-site by pulling your key code from the VIN, and most jobs wrap up the same day. You skip the dealer tow and the dealer markup, since we handle the whole thing in your driveway for well under what Lexus of Plano quotes.
- Key or fob cut to your VIN
- Programmed & tested on-site
- Mobile: we come to your car
- Usually well under dealer pricing
*Flat estimate for a standard transponder key. Proximity / push-to-start smart fobs cost more, and the exact price is quoted on the call before any work.
Lexus RX Keys & Fobs
Almost every Lexus RX from the 2010s on runs a proximity smart key (push-to-start). You carry the fob, the RX reads it over a short-range signal, and you start the truck with the button. These smart fobs talk to the car's immobilizer, so a blank fob is useless until it's coded to your specific RX with a programmer like the Autel IM608, and on newer models we register it through the smart key system. The blade folded inside is an emergency key that unlocks the door if the fob battery dies. Older RX 330 and RX 350 model years (mid-2000s) used a bladed transponder key with a Toyota/Lexus chip in the head rather than a proximity fob, and those get cut to the door lock and chip-programmed to the immobilizer. We figure out which system your RX uses by the year and VIN before we roll out, so we show up with the right blank.
A very common RX problem is a fob that starts working from only inches away, or the dash flashing a "key not detected" warning. Nine times out of ten that's the little coin battery (CR2032) inside the fob going flat, not a dead fob. Swap the battery and most come right back. If a fresh battery doesn't fix it and the fob buttons feel mushy or the case is cracked from years in a pocket, the fob itself is worn out and needs replacing and reprogramming. Either way we can sort it on-site instead of you guessing at parts.
Lexus RX Key Fob FCC IDs
Flip your fob over: the FCC ID is printed on the back of the case. Find it below, or just read it to our dispatcher. It tells us the exact remote your Lexus RX takes before the van rolls out.
| Years | Key type | FCC ID |
|---|---|---|
| 2004-2009 | Remote-head key | HYQ12BBT |
| 2010-2015 | Proximity smart fob | HYQ14ACX |
| 2016-2022 | Proximity smart fob | HYQ14FBB |
Spare key with a working key in hand: from $75. Full replacement, no key at all: from $189. Smart and proximity fobs price above basic chip keys; the exact flat number comes with your VIN on the call.
Trim and market can change the fob, and several IDs often fit one model year. We confirm the exact part by VIN on every job, so a mismatched guess never reaches your driveway.
Frequently Asked Questions
Yes. We pull your key code from the VIN, cut a fresh emergency blade, and program a new proximity fob to your RX on-site. Lost-only-key jobs take a bit longer than adding a spare because the car has to accept a brand new key, but we handle it in your driveway and you drive off the same day.