There are 2 owner-reported powertrain & transmission complaints for the 2005 Buick Rainierin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
CAR SHUTS DOWN WITH NO WARNING , HAD 1500 DOLLAR POWER TRAIN WORK . THE CAR ALMOST CAUSED ME TO BE KILLED DUE TO CAR RUNNING NO ENGINE LIGHT AND COMPLETELY SHUT DOWN AS IF YOU TURNED THE OFF. HWY 287 GOING 65
DT*: THE CONTACT STATED WHILE DRIVING AT NIGHT, THE HEAD LIGHTS INTERMITTENTLY WENT OUT. THE VEHICLE WAS DRIVEN TO THE DEALER WHO COULD NOT DUPLICATE THE PROBLEM. ALSO, IN STOP AND GO TRAFFIC, THE VEHICLE INTERMITTENTLY JERKED. THE DEALER COULD NOT DUPLICATE THE PROBLEM.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026