Universal keys promise 'one-size-fits-all' - but reality bites hard. From 902MHz gaps to Toyota's picky demands, I've seen it all. Here's the unfiltered truth about them

Universal Keys: The Locksmith’s Secret Weapon (And When They Bite Back)

Written by: Tuleen Alshamali

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Published on

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Time to read 1 min

Universal keys are either your best friend or your worst nightmare. I’ve programmed hundreds of these bad boys, and here’s the raw truth about Xhorse and Autel’s offerings.

1. The 902MHz Myth (And Why It Matters)

Wanted: A universal key with remote start for 902MHz systems.

Reality? Most "universal" keys don’t cover this frequency. Even big names like Xhorse and Autel have gaps. Pro tip: If a supplier claims otherwise, ask for video proof of it working before buying.

2. The Autel vs. Xhorse Workflow

Scenario: You’ve got an Autel IM608 but need to program an Xhorse universal key.

 Step 1: Generate the key with Xhorse’s KeyTool (non-negotiable)
Step 2: Program it with your Autel 

Why? Autel’s software won’t create Xhorse keys from scratch. 

Golden Rule: 

"Generate with the brand, program with any tool." 

3. Toyota’s Dirty Little Secret

Tried reprogramming an Autel iKey from a Mazda to a Tacoma? Good luck. 

Problem: Toyotas often demand brand-specific universal keys. 

Fix: Always keep Toyota-designated iKeys in stock. 

4. Nissan Nightmares

Those Autel universal Nissan keys? They fit… sort of. 

Issue: Keys slide out of slots on older models. 

Pro Move: Use Xhorse keys + a ProPad—30-second programming and no janky fit. 

5. The BMW 8 Series Blueprint

Here’s how to nail a 2018 BMW 8 Series (314MHz) every time: 

  1. Connect Autel IM508S + XP200
  2. Navigate: Universal Key > Europe > BMW > 8 Series
  3. Generate key → Program → Profit

Warning: Miss the frequency (FSK, ID49), and you’re dead in the water. 

6. Kia Remote Failures

Programmed a key that starts the car but won’t lock doors? Classic. 

Culprits: 

  • Wrong frequency (check 433MHz vs. 315MHz) 
  • Forgotten remote relearn procedure 

Solution: Whip out your scanner and re-add all remotes manually. 

The Verdict: Universal Keys Ain’t So Universal

Xhorse Keys: Bulletproof build quality, but you’re locked into their ecosystem for generation.

Autel Keys: Wider vehicle coverage, but fitment issues plague Nissans/older models.

Pro Wisdom: 

"Stock both brands, but never promise ‘one key fits all’—unless you enjoy comebacks." 

Your Turn!

Got a Universal Key horror story? Hit reply and share your battle scars.

Need the Exact Part Numbers for Toyota/Nissan-specific keys? Contact us - we’ll send you our cheat sheet.

Written by a locksmith who’s burned too many hours debugging “universal” solutions.
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