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Crenshaw Lock

BMW car keys in Walnut · 24/7 mobile

BMW Car Key Replacement in Walnut

Need BMW car keys replaced in Walnut? Crenshaw Lock Company sends a fully mobile locksmith to your 3 Series or 5 Series 24/7, whether you lost every key or just want a spare. We come to your vehicle. Call (323) 997-8867.

  • Mobile to your Walnut location
  • Keys & fobs programmed on site
  • Available 24/7
Call (323) 997-8867or tap to call — we answer 24/7
Smart key fob and transponder car key on a car seat at night
Open now(323) 997-8867

A BMW key is more than a piece of metal. Most 3 Series and 5 Series keys are encrypted and talk to the car electronically, and many models use Comfort Access for keyless entry and push-button start. That is why a hardware-store copy will not work, and why a tow to the dealer is not your only option. Crenshaw Lock Company has worked on vehicles since 1987, and BMW Comfort Access and encrypted keys are our specialty.

We are a fully mobile service, so there is no shop to visit. Whether your car is parked in a Walnut Heights driveway, a lot near Mt. San Antonio College, or on a street near Suzanne Park, we come to the vehicle and handle the key there. We cover lost-key, spare-key, and all-keys-lost situations, and we confirm the correct key for your car by its VIN before we cut or program anything.

How it works in Walnut

  1. 1

    Call and give us your vehicle details

    Call (323) 997-8867 any hour. Tell us the model (3 Series or 5 Series), the year if you know it, and whether you have one key, none, or just want a spare. Have the VIN ready, since it is on the dash near the windshield and on your registration.

  2. 2

    We come to your BMW

    Our mobile locksmith drives to wherever the car is sitting in Walnut. Nothing needs to be towed, and you do not have to get the car anywhere first.

  3. 3

    Verify ownership and confirm the key by VIN

    We check your ID and proof of ownership, then use the VIN to confirm which key your BMW needs. This keeps us from guessing between push-button smart keys and other key types.

  4. 4

    Make and program the new key

    We prepare the new key and pair it with your car so it starts the engine and, where equipped, works with Comfort Access. Even if every key is lost, we can usually create a new one without towing.

  5. 5

    Test everything before we leave

    We test locking, unlocking, and starting, plus any remote functions. If you only had one key, we recommend a spare so you are not stranded again.

What affects the price

BMW keys across Walnut

Walnut sits in the San Jose Hills and Puente Hills area, and BMW owners here park everywhere from hillside driveways in Walnut Heights to the lots around Mt. San Antonio College (Mt. SAC) on Grand Ave. Students and commuters near campus often call us after locking keys in a car or losing a key fob, and we come to the parking lot or street so you do not have to arrange a tow. We serve ZIP 91789 and ZIP 91788 around the clock.

If you live in the gated Snow Creek community, we can meet you at your home and your car, and we can also help with smart-lock or gate-access needs at the property. Out near Creekside Park or Suzanne Park, we handle car keys curbside or in the driveway. On equestrian properties in the Walnut hills, we can also help with a barn or driveway gate lock while we are there. Call (323) 997-8867 from anywhere in town.

See our BMW key guides by model and year, or all Walnut services.

Need a BMW key in Walnut?

Call (323) 997-8867 — we come to your vehicle 24/7.

Call (323) 997-8867

BMW keys in Walnut — FAQs

What if I lost all my BMW keys in Walnut?
An all-keys-lost situation is something we handle regularly. We come to your car, confirm ownership, use the VIN to identify the right key, and make and program a new one on site. Call (323) 997-8867 any time.
Can you make a spare BMW key if I still have one?
Yes. Having a working key makes the process simpler, and a spare is usually far less hassle than replacing everything after a loss. We come to you in Walnut and pair the spare with your 3 Series or 5 Series.
What if I have no original key at all?
You do not need an original. With proof of ownership and the VIN, we can work out the correct key for your BMW and create one from scratch. Call (323) 997-8867 to get started.
Is a push-button BMW key different from a bladed key?
Yes. Push-button smart keys with Comfort Access let you unlock and start the car without inserting a blade, while other keys use a physical blade plus an encrypted chip. Which one your car uses depends on the model and year, which we confirm by VIN.
How do you confirm which key my BMW needs?
We use your VIN along with your model details to identify the correct key type. That way we are not guessing, and the key we make matches your specific 3 Series or 5 Series.
Do I need to tow my BMW to you?
No. We are fully mobile and come to the vehicle, whether it is at home, at work, or near Mt. SAC. Nothing needs to be towed for key replacement in most cases.
Do you serve both Walnut ZIP codes?
Yes, we serve 91789 and 91788, including Snow Creek, Walnut Heights, and the Mt. San Antonio College area. Reach us 24/7 at (323) 997-8867.
DS

Reviewed by David Shar — Owner & Lead Technician

Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.

Last updated 2026-10-12.

Call (323) 997-8867 · Open 24/7