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Lost Key Fob for a 2023 Chevrolet Silverado? Here’s What to Do Next (US)

Losing the key fob to a 2023 Chevrolet Silverado can leave you stranded and worried about security—especially if the fob may have been stolen. The good news: you can replace and reprogram a new fob, and you can also disable lost keys so they no longer start the truck.

Understanding Your Situation

Your Silverado’s key fob is a programmed transmitter tied to the vehicle’s immobilizer system. When it’s lost, the truck may still be secure, but anyone who finds the fob could potentially unlock and start the vehicle, so replacement and key “deletion” (erasing lost keys from the vehicle) is important.

🚀 Immediate Steps to Take

  1. Confirm it’s truly lost: retrace steps, check common spots, and use any key-finder app/tag if attached. If you have a spare fob, keep it with you (not in the vehicle).
  2. Secure the truck: park in a well-lit area, remove valuables, and if you suspect theft, consider moving the vehicle to a garage or monitored location.
  3. Call for replacement and ask for key deletion: contact a Chevrolet dealer or a qualified automotive locksmith and request programming a new fob AND removing the lost fob(s) from the vehicle’s memory.

Your Options

Chevrolet dealer replacement (OEM fob + programming)

Cost: $250-$600 Time: Same day to 1-3 days

A Chevrolet dealership supplies an OEM key fob and programs it to your 2023 Silverado. They can also erase lost keys from the vehicle so the missing fob won’t start the truck.

✓ Pros:
  • OEM parts and factory-level programming capability
  • Dealer can typically perform full key deletion and verify everything works
✗ Cons:
  • Often the highest cost option
  • May require towing if you have no working key/fob available

Mobile automotive locksmith (replacement fob + programming)

Cost: $180-$450 Time: Same day

A qualified mobile locksmith comes to the vehicle, supplies a compatible fob (OEM or high-quality aftermarket, depending on availability), programs it, and may be able to erase lost keys from the system.

✓ Pros:
  • Convenient on-site service (often no tow needed)
  • Can be faster than dealer scheduling
✗ Cons:
  • Capability varies—confirm they can program 2023 GM systems and perform key deletion
  • Aftermarket fobs can vary in quality and features

Use your spare fob now + replace later (if you still have one working)

Cost: $0 now; $180-$600 later Time: Immediate for driving; replacement same day to 1-3 days

If you have a spare working fob, you can keep driving while you schedule a replacement. You should still arrange to add a new fob and delete the missing one for security.

✓ Pros:
  • No immediate downtime
  • Gives you time to compare prices and confirm parts availability
✗ Cons:
  • Security risk remains until the lost fob is deleted
  • If you lose the remaining fob, replacement can become more expensive and may require towing

Insurance or roadside assistance claim (if covered)

Cost: $0-$600 (depends on coverage/deductible) Time: Same day to 1-3 days (plus claim processing)

Some comprehensive auto policies, extended warranties, or roadside plans reimburse part of key/fob replacement. You still need a dealer or locksmith to cut/program and delete keys.

✓ Pros:
  • May reduce out-of-pocket costs significantly
  • Can include towing if you’re stranded
✗ Cons:
  • Deductibles/limits may make it not worthwhile
  • Claims paperwork and approval may add time

⚠️ What to Avoid

✕ Don’t buy the cheapest online fob without confirming exact compatibility (FCC ID/part number, frequency, and features like remote start). Wrong fobs often can’t be programmed or won’t support all functions.

✕ Don’t leave the truck unattended in a high-risk area if you suspect the fob was stolen—prioritize moving it and deleting the lost key from the vehicle.

✕ Don’t assume the lost fob is “harmless” because of the immobilizer—if someone has the fob, they may be able to unlock and start the vehicle until it’s removed from the system.

⚠️ Common Mistakes to Avoid

  • Calling dealer first without getting quotes
  • Not checking insurance coverage
  • Rushing to tow to dealership
  • Not considering mobile locksmiths

Frequently Asked Questions

Can I start or drive my 2023 Silverado without the key fob?

In most cases, you need a programmed key/fob for the immobilizer to allow starting. Some trims have a physical emergency key for the door, but starting typically still requires a programmed transmitter. If you have no working fob, you’ll usually need a dealer or qualified locksmith to program a new one at the vehicle.

If I replace the fob, will the old lost fob still work?

It can, unless it’s deleted from the vehicle’s memory. Ask the dealer/locksmith to erase all lost keys/fobs during programming so the missing fob can no longer start the truck.

Do I need to tow the truck to the dealer if all keys are lost?

Sometimes. Many mobile locksmiths can program on-site, which can avoid towing. If the dealer requires the vehicle present and you can’t access/start it, towing may be necessary.

What information should I have ready when I call for replacement?

Have your VIN, year/make/model (2023 Chevrolet Silverado), trim (if known), your location, and proof of ownership (registration/title) plus ID. Parts availability and programming approach can depend on the exact configuration.

⏱️ Urgency Note: If the fob was lost in a public place or you suspect it was stolen, treat it as urgent: secure the vehicle and schedule replacement plus key deletion as soon as possible to reduce theft risk.

Related Information

Need Detailed Information?

Get vehicle-specific key fob compatibility, part numbers, and a complete price comparison for your 2023 Chevrolet Silverado.

View Silverado Key Fob Guide →

Last updated: 2026-01-04