when i turn the key nto start nothing happens
either starter solenoid or ignition module above steering wheel.
As it does nothing I'd check the ignition switch first then the neutral safety switch for proper operation.
Get beneath the vehicle and tab likely on the starter and then turn your ignition. If nothing happens check all wires leading to the starter and be sure and check your starter's fuses. If all else failed remove the starter and have it checked. Good Luck SEMPER FI
Looking for a Used Riviera in your area?
CarGurus has 149 nationwide Riviera listings starting at $1,295.
Search Buick Riviera Questions
Buick Riviera Experts