shouldn't be too late.
contact your dealer and tell them to look up the bulletin in
question.
then take it from there...

g'luck

The presence of a TSB has nothing to do with a warranty.  TSBs publish
new techniques and materials needed to service a car issue that wasn't
considered when the original shop manual was written.  TSBs aim at
uniformity of action throughout the GM/Chevy/GoodWrench service
organization and can revise the specs (p/n's) of replacement parts and
servicing materials.

While there are some exceptions (for design issues), any issue related
to "wear" is usually excluded from the warranty.  (Unless you have
pre-paid for maitenance by buying a high-end BMW. Rolls Royce or a Hyundai).

The first owner of my C4 was large and probably wore Levis. The denim &
rivets took a toll on the driver's seat bolsters.  Had he/she worn wool
or perhaps, had the right leather dressing been applied, the bolsters
would have not required repair at 40K miles.  Prior owner might have
"slud" across the bolsters when entering and exiting (rather than
planting his/her butt in the seatback and sliding down gently into the
seat.)  Maybe the car was driven on just two mile jaunts, with many
entries and exits.  This is stuff that the manufacturer cannot
anticipate when 'designing for durability.'  Generally, Corvette buyers
are more critical about lateral support than they are about bolster
durability.

Haven't read this particular TSB but I'd not waste time on it.
Depending on how you read it, you can either take the maintenance tips
to heart or cry in your beer.  You can also take it to a club meeting
and get the Chaplin to punch your card -- one more time.  Better to take
pride in ownership, enjoy the car and maintain it as you see fit!

P.S.  PJ's little nasty secret:  One bolster in my C4 is now color
matched vinyl vice leather--shame on PJ!