Legal
Limited warranty
Last updated July 27, 2026
Your adapter is covered against defects for one year from the date you bought it. If it stops working and you did not break it, we replace it.
What is covered
Miller Tech Solutions warrants the DriveDecode M1 adapter against defects in materials and workmanship for twelve months from the date of purchase, to the original purchaser. If it fails in that period through normal use, we will replace it or refund the purchase price, at our option.
What is not covered
- Physical damage, liquid damage, or a snapped connector.
- Damage from a vehicle electrical fault, a jump start, or a voltage spike.
- Modification, disassembly, or attempted repair.
- Normal cosmetic wear.
- Adapters bought secondhand or from an unauthorized reseller.
The DriveDecode Pro months
The months of DriveDecode Pro included with an adapter are not a physical product and are not covered by this warranty. They are redeemed in the app with your order number, under Settings, then redeem adapter order. If you cannot find the number, email us and we will look it up. If a redemption does not go through, contact support and we will fix a genuine problem.
Reading trouble codes, live data, freeze frame and readiness monitors do not need Pro and do not need an account. They are free, and a lapsed subscription does not take them away.
Compatibility is not a defect
The M1 reads engine and emissions data on 1996-and-newer US-market vehicles through the generic OBD-II interface. It does not read ABS, airbag, TPMS or transmission-specific manufacturer codes, and an adapter that will not show you those is working correctly. We state this on the product page for exactly this reason.
Vehicles outside the OBD-II standard are not supported, and that is not a warranty claim. That covers heavy trucks on J1939, motorcycles, and anything pre-1996.
How to make a claim
Email [email protected] with your order number, where you bought it, and a description of what the adapter does or does not do. We will usually ask a couple of diagnostic questions first, because a fair share of "dead" adapters turn out to be an unpowered OBD-II port, and then send a replacement if it is genuinely faulty.
If you bought through a marketplace, the platform's own return window may be the faster route inside the first month. Use whichever helps you sooner.
Your legal rights
This warranty gives you specific legal rights. You may also have other rights that vary from state to state, and nothing here limits them.