Electrical problem
2002 Buick Rendezvous 6 cyl Wheel Drive Type unknown Automatic 70000 miles
----------------------------------------------------------------
all of a sudden the right blinker blinks faster than the left. then i couldn,t start the car by the key only by the remote starter and now the interior lights keep coming on and i have to shut them off , about 20 minutes later there switch on again, i know this is going to be expensive to repair but can anyone give me an idea of how much. thanks

sounds like the body control module has gone bad. You will need to take it to the dealer to program the replacement module.