Skip to content
Open 24/7 Salt Lake City & nearby
24/7 Locksmith Salt Lake City logo (385) 853-5247

Mobile Lexus Key Service

Lexus RX 350 Key & Key Fob Replacement in Salt Lake City, UT

Lexus RX 350 key replacement is available with mobile service, so we come to you when your key is lost, damaged, or no longer working. We’re open 24/7, with car key replacement from $120.

  • Mobile service—we come to you
  • Open 24 hours a day, 7 days a week
  • Car key replacement from $120
  • Key fob programming from $80

Get a fast quote

Prefer to talk? (385) 853-5247

We only use your details to reply to this request. Privacy

Open 24/7Mobile service, we come to youLicensed & insuredUpfront prices

Lexus RX 350 Key Replacement Depends on the Key Era

The RX 350 has used different key setups over its production history. The year and equipment matter, so tell us what you drive and describe the key you have—or let us know if every key is lost.

Earlier models — chip key

Some earlier RX 350 models use a chip key. That means the key is more than a cut blade: its electronic function also matters when replacing a lost or damaged key.

Most later models — smart key

Most later RX 350 models use a smart key. If yours is a push-button or proximity-style setup, mention that when you call so we can discuss the right replacement or key fob programming service.

Car door lock cylinder taken apart to decode and cut a replacement key

RX 350 Key and Fob Problems That Can Interrupt Your Drive

A key problem can leave your RX 350 unavailable for a commute, errands, or a trip with passengers. These are common key and fob situations to describe when you contact us.

The key or fob is missing

If your only key is lost, or a shared household key has gone missing, tell us whether you have another working key. Lost car keys start at $120.

The fob buttons stop responding

A fob that no longer locks or unlocks the doors may have a depleted battery or another fob issue. We offer key fob battery replacement and key fob repair.

The key is damaged or worn

A cracked fob, damaged key, or key that has become difficult to use may need repair or replacement. Describe what still works and what does not.

The RX 350 does not recognize the key

If the vehicle does not respond as expected to a working-looking key or fob, the key may need attention. We offer car key replacement and programming services; the exact need depends on your setup.

Need help now? (385) 853-5247

Is Your RX 350 Fob the Problem—or the Vehicle?

Try these quick checks before arranging service. They can help you describe the symptom, but they are not a substitute for a diagnosis if the vehicle still will not start.

  1. Try the spare key or fob — If you have a spare, see whether it operates the locks or starts the RX 350. If the spare works normally, the first key or fob is more likely to be the issue.
  2. Check the fob battery — If the buttons have become unreliable or stopped responding, a weak fob battery may be involved. We offer key fob battery replacement if a new battery is needed.
  3. Notice what happens at the vehicle — Pay attention to whether the doors respond, whether the dashboard comes on, and whether the engine turns over. Those details help distinguish a key concern from a starting problem.
  4. Describe the key and the symptom — Tell us the RX 350’s year, whether it uses a chip key or smart key, and what you have already tried. If you are locked out rather than dealing with a starting issue, ask about car lockout service.

RX 350 Trim and Equipment Can Affect the Key Setup

The RX 350 is a Lexus SUV offered in different year and trim configurations. Key details can vary with the vehicle’s setup, so a replacement should be matched to the specific RX 350 rather than chosen by model name alone.

Year and trim matter

Different RX 350 years and trims may use different key arrangements. Share both details when you call, along with whether you have a working key.

Smart-key equipment matters

Most later models use smart keys, but not every RX 350 should be assumed to have the same equipment. Tell us how your key operates so we can discuss the appropriate service.

A spare should match your vehicle

If you want a second key for another driver, explain whether you need a traditional key or fob and whether the current key still works. For other Lexus models, see our Lexus key replacement options.

Need help now? (385) 853-5247

Service area: Salt Lake City, UT · Open in Google Maps

Frequently asked questions

Can you make a second RX 350 key for two drivers sharing the vehicle?

We offer car key replacement and key fob programming for RX 350 owners who need another key. Tell us the year, trim, and what type of key you use so we can discuss the appropriate service.

What should I do if my RX 350 key turns but the car will not start?

Note whether the dashboard lights up and whether the engine turns over, then tell us exactly what happens. The key may not be the cause, but we can help assess the key concern and offer ignition repair if that is the issue.

Can you make an RX 350 key if I have no original?

We offer lost car key service starting at $120, including situations where the original key is missing. Call with the RX 350’s year and trim so we can discuss the key setup and next steps.

Should I get a spare RX 350 key before my last one fails?

Yes, arranging a spare while you still have a working key can help you avoid being left without one. Car key replacement starts at $120, and key fob programming starts at $80.

Get Help With Your RX 350 Key

We’re mobile and open 24/7. Call 24/7 Locksmith Salt Lake City at (385) 853-5247 to discuss your RX 350 key or fob.

(385) 853-5247 Get a free quote