NHTSA Complaint #11244847 — 2005 CADILLAC STS

THE VEHICLE INTERMITTENTLY LOSES ENGINE/ ELECTRICAL POWER WHILE DRIVING. WHEN THE POWER LOSS OCCURS, BRAKES AND STEERING LOSE PROPER FUNCTIONALITY CREATING A THREAT TO THE DRIVER AND PASSENGERS AS WELL AS OTHER MOTORISTS. THE VEHICLE THEN IS UNRESPONSIVE TO THE PROPER STARTING PROCEDURE. RESTARTING THE VEHICLE IS INCONSISTENT. IT MAY START IMMEDIATELY UPON COMMAND OR IT MAY CAUSE A THEFT PROCEDURE TO INITIATE. THE VEHICLES DIC WILL POSSIBLY SHOW THE FOLLOWING PROMPTS JUST BEFORE THE SHUTDOWN FAILURE OCCURS; SERVICE VEHICLE SOON, SERVICE STABILITY SYSTEM SOON, SERVICE A/C SYSTEM SOON. DURING THE SHUTDOWN FAILURE, NO ELECTRICAL COMPONENTS ARE OPERABLE BUT POWER IS STILL AVAILABLE TO THE CAR ALLOWING THE DIC TO PROMPT 'NO FOB DETECTED' OR 'THEFT ATTEMPTED' AND THE FOB WILL INTERMITTENTLY ALLOW YOU TO SEND LOCK/ UNLOCK COMMANDS DURING THE SHUTDOWN FAILURE. THE FAILURE HAPPENS IN ANY SCENARIO AND IS INTERMITTENT IN THE ASPECT OF NO FAILURE OCCURS FOR A WEEK OR 5 FAILURES OCCUR IN A DAY. I CANNOT DETERMINE WHEN THE FAILURES BEGAN HAPPENING CONSIDERING I PURCHASED THE VEHICLE USED WITH 155000 MILES AND THE FAILURES HAVE BEEN HAPPENING SINCE DAY 3 OF MY OWNERSHIP. THE VEHICLE IS CURRENTLY AT A MIDLAND MICHIGAN CADILLAC DEALERSHIP BEING DIAGNOSED.