Not to be uppity or anything, but did you check your owner's
manual? (Lots of folks aren't aware that the manual often
covers stuff like this.)

Sounds like it's signaling something is not quite right.

Updates are welcome. :-)

"Dave M" <daveandem@att.DOT.net> wrote
> Dave M wrote:
>> Hello All,
>>
>> I have a strange condition on my drive light and don't
>> know how to interpret it. Yesterday evening on the way
>> home from a trip, the letter D on my transmission
>> indicator panel (P,R,N,D,D2,D1) started blinking.
>>
>> The condition continues to persist.
>>
>> No other symptoms of problems.
>>
>> Does anyone know what this means?
>>
>> Thanks in advance for your advice / comments.
>>
>> Dave
>
>
> Hello again,
>
> I forgot to add that I have a 2002 Odyssey with ~50K
> miles.
>
> Dave