How to reset the Immobilizer?

2006 ACURA MDX
155,000 MILES
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SUSIEL
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  • 2 POSTS
How do you reset the immobilizer? Cranks but won’t start, flashing key indicator on all keys/fibs, good fuses and battery and starter!
Jul 10, 2023 at 6:43 PM
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
key into the ignition and turn it to the "on" position.

Locate the valet switch, which is a small black button usually located under the driver's side of the dashboard.

Press and hold the valet switch for approximately 10 seconds until you hear a confirmation beep.

Turn the ignition key to the "Lock" position and remove it from the ignition.

Wait for about 10 seconds, then insert the key back into the ignition and turn it to the "on" position (do not start the engine).

The immobilizer system should now be reset. You may hear a second beep to confirm the reset.

Please let us know how it goes.
Jul 11, 2023 at 5:00 PM
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SUSIEL
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  • 2 POSTS
Because there is no valet switch in my vehicle, I need an alternate procedure. Please help.
Aug 6, 2023 at 2:41 PM
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Okay, let's try a hard system reboot, this should reset the system, this guide will tell you how:

https://www.2carpros.com/articles/step-by-step-guide-performing-a-hard-system-reboot-for-your-vehicles-electronics-systems

Please go over this guide and get back to us.
Aug 7, 2023 at 10:31 AM
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
anything?
May 6, 2024 at 12:29 PM
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