NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
73 reports44,000 miles · Jul 1, 2004
Air BagsInjury
ON JUNE 17, AT OR ABOUT 7:30 PM, MY WIFE ENTERED HER VEHICLE, A 1999 CADILLAC SEVILLE STS, SHE TURNED THE KEY TO START THE CAR, AND THE DRIVER SIDE AIRBAG DEPLOYED. THE VEHICLE WAS PARKED ON DRY PAVEMENT, THE VEHICLE WAS NOT IN GEAR, AND HAD SUSTAINED NO PREVIOUS DAMAGE. WE CONTACTED THE LOCAL DEALERSHIP, AND SUBSEQUENTLY, THE…
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ON JUNE 17, AT OR ABOUT 7:30 PM, MY WIFE ENTERED HER VEHICLE, A 1999 CADILLAC SEVILLE STS, SHE TURNED THE KEY TO START THE CAR, AND THE DRIVER SIDE AIRBAG DEPLOYED. THE VEHICLE WAS PARKED ON DRY PAVEMENT, THE VEHICLE WAS NOT IN GEAR, AND HAD SUSTAINED NO PREVIOUS DAMAGE. WE CONTACTED THE LOCAL DEALERSHIP, AND SUBSEQUENTLY, THE MANUFACTURER, TO NO AVAIL. TO DATE, THEY HAVE REFUSED TO ASSIST US WITH THIS PROBLEM. UPON CONTACTING THE DEALERSHIP, ON FRIDAY, JUNE 18, FIVE DIFFERENT MECHANICS TOLD US THAT THIS TYPE OF DEPLOYMENT IS "NOT SUPPOSED TO OCCUR." THAT, IN FACT, THE AIRBAG SHOULD NOT DEPLOY IF THE CAR IS NOT IN GEAR. FURTHER, UPON CONTACTING THE MANUFACTURER, I WAS TOLD AGAIN THAT THIS SITUATION SHOULD NOT OCCUR. THE MANUFACTURER TOLD ME THAT THE ONLY CIRCUMSTANCES UNDER WHICH THE AIRBAG WILL DEPLOY INADVERTENTLY IS IF MOISTURE OR CORROSION BUILDS UP. UNDER THESE CIRCUMSTANCES, A WARNING LIGHT WILL DISPLAY TO SIGNAL THE DRIVER THAT THERE IS A PROBLEM WITH THE AIRBAG SYSTEM. THERE WAS NO INDICATION THAT THERE WAS A MOISTURE OR CORROSION BUILDUP IN THE SYSTEM. SINCE THE AIRBAG DEPLOYED UNDER CIRCUMSTANCES IN WHICH IT IS NOT SUPPOSED TO, AND SINCE THERE WAS NO INDICATION BY VIRTUE OF A DISPLAYED WARNING LIGHT, THERE IS OBVIOUSLY A DEFECT IN THE DESIGN OR MANUFACTURE OF THIS SYSTEM, ON THIS PARTICULAR MODEL VEHICLE. FORTUNATELY, MY WIFE WAS NOT DRIVING THE CAR WHEN THE DEPLOYMENT OCCURRED. HOWEVER, WITH THOUSANDS OF 1999 CADILLAC SEVILLE'S ON THE ROAD, IT MAY SIMPLY BE A MATTER OF TIME WHEN AN INADVERTENT DEPLOYMENT OCCURS WHILE THE VEHICLE IS MOVING. OBVIOUSLY, DEPLOYMENT UNDER THESE CIRCUMSTANCES, RATHER THAN SAVE LIVES, MAY RESULT IN THE LOSS OF LIFE; AND CONSIDERING THAT THE MANUFACTURER IS UNWILLING TO ACKNOWLEDGE OR ASSIST TO REPAIR SUCH DEFECT, GOVERNMENT OR REGULATORY INTERVENTION IS IMPERATIVE TO AVOID THE POTENTIAL LOSS OF LIFE. *NM
NHTSA ODI #10079143
52,000 miles · Jun 29, 2004
EquipmentSuspensionTires
GETTING VIBRATION ON SMOOTH ROADS AT 60-68 MPH. PUT ON 4 NEW MICHELIN TIRES, REPLACED BRAKE ROTORS, BALANCED ALL TIRES, STILL EXPERIENCE VIBRATION. DEALER CAN'T FIX. WHAT ARE OTHER SOLUTIONS BESIDES SAYING TIRES ARE OUT OF ROUND? *AK
NHTSA ODI #10078989
51,603 miles · May 11, 2004
Exterior LightingVisibility
HEADLIGHTS WENT OUT UNEXPECTEDLY. TOOK VEHICLE TO THE DEALER, AND DEALER INDICATED THAT RELAY SWITCH WAS CORRODED DUE TO WINDSHIELD WIPER FLUID GETTING DOWN INTO THE SWITCH. *AK THE CORROSION WAS CAUSED BY THE WINDSHIELD WASHER FLUID SPILLING INTO THE RELAY. *LA
NHTSA ODI #10067005
33,000 miles · Nov 24, 2003
Engine And Engine Cooling
WHILE DRIVING AT ANY SPEED, THE VEHICLE STALLED WITH OUT ANY WARNING. AFTER A FEW MINUTES THE VEHICLE WOULD START UP AS IF NOTHING HAD HAPPENED. THE VEHICLE HAD BEEN TO THE DEALER FOR THIS PROBLEM TWICE ALREADY FOR THIS SAME PROBLEM AND NEEDED TO GO TO THE SHOP AGAIN. THE MANUFACTURER IS AWARE OF THE PROBLEM. *JB
NHTSA ODI #10048542
Mileage unknown · Nov 19, 2003
Electrical SystemEngine And Engine Cooling
PROBLEMS WITH VEHICLE'S ENGINE AND DASHBOARD LIGHTS.*MR THE DEALERSHIP NEVER DID CORRECT THE DASHBOARD LIGHT PROBLEM. THE ENGINE WOULD DIE WITH OUT WARNING AND AT TIMES WHILE THE CONSUMER WAS MAKING A TURN. THE CONSUMER TOOK THE VEHICLE TOOK ANOTHER DEALERSHIP, WHO FIXED ALL THE PROBLEMS, HOWEVER THE ENGINE CONTINUED TO STAL…
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PROBLEMS WITH VEHICLE'S ENGINE AND DASHBOARD LIGHTS.*MR THE DEALERSHIP NEVER DID CORRECT THE DASHBOARD LIGHT PROBLEM. THE ENGINE WOULD DIE WITH OUT WARNING AND AT TIMES WHILE THE CONSUMER WAS MAKING A TURN. THE CONSUMER TOOK THE VEHICLE TOOK ANOTHER DEALERSHIP, WHO FIXED ALL THE PROBLEMS, HOWEVER THE ENGINE CONTINUED TO STALL, THE DEALER WAS UNABLE TO DIAGNOSIS THE ENGINE STALLING BECAUSE THERE WAS A PROBLEM WITH THE CODING, WHICH MEANT THE COMPUTER DID NOT RECOGNIZE THE PROBLEM. *JB *NM
NHTSA ODI #10048489
39,000 miles · Nov 13, 2003
Engine And Engine Cooling
WHILE DRIVING AT ANY SPEED, BUT MOSTLY WHEN SLOWING DOWN, VEHICLE DIED. WHEN THIS OCCURRED VEHICLE LOST ALL POWER, ALMOST RESULTED IN A REAR END COLLISION. ALTHOUGH DEALERSHIP SERVICED THE VEHICLE 6 TIMES IT WAS UNABLE TO RESOLE THE PROBLEM. *AK
NHTSA ODI #10047907
Mileage unknown · Nov 10, 2003
Electrical SystemService Brakes, HydraulicSteering
FROM ABOUT SEPTMBER 2003 ON WE'VE HAD ISSUES W/ OUR 1999 SEVILLE SLS SHUTTING DOWN. IT SHUTS DOWN WHILE IN PROGRESS AT 55+ MILES PER HOUR AND AT A STANDSTILL. EVERYTHING GOES, THE ENGINE, LIGHTS, BRAKES, STEERING, ETC. IT IS IN THE REPAIR SHOP FOR THE FOURTH TIME AND THEY ARE STILL NOT SURE THEY KNOW WHAT IS CAUSING THE PROBL…
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FROM ABOUT SEPTMBER 2003 ON WE'VE HAD ISSUES W/ OUR 1999 SEVILLE SLS SHUTTING DOWN. IT SHUTS DOWN WHILE IN PROGRESS AT 55+ MILES PER HOUR AND AT A STANDSTILL. EVERYTHING GOES, THE ENGINE, LIGHTS, BRAKES, STEERING, ETC. IT IS IN THE REPAIR SHOP FOR THE FOURTH TIME AND THEY ARE STILL NOT SURE THEY KNOW WHAT IS CAUSING THE PROBLEM. THE CADILLAC CUSTOMER SERVICE REPRESENTATIVE SUGGESTS THAT I LET THE REPAIR CENTER FIX THE CAR AGAIN AND TAKE IT HOME TO SEE IF THE PROBLEM OCCURS AGAIN. HOWEVER, I AM CONCERNED FROM A PUBLIC AND PERSONAL SAFTEY PERSPECTIVE THAT THIS IS NOT ADVISABLE AND THERE IS A DEFECT IN THE CAR. IT'S IS DARK HERE VERY EARLY, TRAFFIC IS HEAVY AND THE DEER ARE ON THE MOVE B/C HUNTING SEASON JUST STARTED. IF I NEED LIGHTS, BRAKES OR STEERING TO AVOID AN ACCIDENT OR GUIDE ME HOME IN THE EVENING I AM NOT CONFIDENT THAT I CAN RELY ON THIS VEHICLE. LOOKING TO CADILLAC TO SEE IF A MUTUALLY BENEFICIAL RESULT CAN BE OBTAINED. *AK
NHTSA ODI #10045901
41,000 miles · Oct 30, 2003
Steering
RIGHT SIDE MOUNT BROKEN ON STEERING RACK. *LA
NHTSA ODI #10045111
Mileage unknown · Sep 2, 2003
Electrical System
THE DEALER STATED THAT THE VEHICLE NEEDED A NEW STARTER AND IGNITION SWITCH. *PH *SCC *JB
NHTSA ODI #10032428
Mileage unknown · Jul 21, 2003
Engine And Engine Cooling
WHILE DRIVING AT ANY SPEEDS VEHICLE WILL STALL OUT WITHOUT WARNING. HAD VEHICLE SERVICED SEVERAL TIMES BY DEALERSHIP, THEY COULD NOT LOCATE CAUSE OF PROBLEM.*AK
NHTSA ODI #10029702