[Solved] Key programming failed on my 2017 Mercedes Benz GLC 43 - need code

1086 views - Last reply: August 02, 2024
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Trying to program a new key for my 2017 Mercedes Benz GLC 43 - where's the key code?

Hello! We've developed a VIN-based tool to help you get your key code for the 2017 Mercedes Benz GLC 43. Check it out here: VIN Key Code Generator.

Replies (6)

My mechanic said this might help with my 2017 Mercedes Benz GLC 43 key issue.

Just tried this on my 2017 Mercedes Benz GLC 43—anyone else have success?

My 2017 Mercedes Benz GLC 43 won’t start without that code. Following this closely.

I’m stuck in a parking lot with my 2017 Mercedes Benz GLC 43. Trying this now.

Can confirm it worked for my 2013 2017 Mercedes Benz GLC 43.

I’ll try this and update how it goes with my 2017 Mercedes Benz GLC 43.

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Common questions about key programming, fob issues, and replacement options

Key Fob Issues
1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
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Lost Keys
Dealerships can often cut keys using your VIN, but will require proof of ownership. This only works for original factory keys - aftermarket or previously replaced locks won't match. The key will still need programming to start the car if it has a transponder.
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Some comprehensive auto policies cover key replacement, often with a deductible. Homeowner's insurance may cover keys lost away from home. Always check your policy details - coverage varies widely. Claims may increase your rates.
Key Tip: Newer cars often require dealer programming for first key replacement
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Not recommended. Bypassing requires specialized knowledge and may violate anti-theft laws. Proper solutions: 1) Get correctly programmed keys 2) Replace faulty immobilizer components 3) Have dealer reset the system if keys are lost.
Security Systems
This means your car's immobilizer system can't read the key's transponder. Causes: dead key battery, damaged transponder chip, faulty car antenna ring around ignition, or system needs resetting. Try replacing the battery first.
Key Fact: Modern transponder keys have been required in all new US vehicles since 1998

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