How do you replace the rear blinker bulb on a 2003 Buick Lesabre?
Take off the plastic holders for the net at the back of the
trunk. This will allow the plastic trim to move away from back of
trunk then with a wrench or socket remove nuts that are on the
threaded bolts that the plastic net holders were on. This will
allow the whole assembly to be removed from the back (exterior) of
the car. Now just remove connector half turn bulb remove old bulb
replace new bulg and reverse to assemble.