Take the appropriate action and verify that the warning light turns off.




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KEY Warning Light (Some models)Mazda 6 Owners Manual: Headliner removal/installation
1. Disconnect the negative battery cable.
2. Turn the seaming welt and weatherstrip over.
3. Remove the sunroof seaming welt. (vehicles with sunroof only)
4. Remove the A-pillar trims.
5. Remove the B-pillar upper trims.
6. Remove the C-pillar trims.
7. Remove the front and rear map light. (Se ...
Mazda 6 Owners Manual: Immobilizer system reprogram procedure
Note
When an error occurs during the reprogram procedures, except when
the PCM is replaced, repeat the procedure from Step 1. If you still cannot
reprogram, confirm how many keys can start the engine. Then, perform the key
replacement or addition reprogram procedure according to the val ...