The hard fuel rail line has begun to leak and no GM dealers carries parts to resolve problem. The 1999 STS Cadillac is in good working condition but because of the leak, it is unsafe to drive.
1999 Cadillac Seville
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Seville years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
24 reports with mileage · 49 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine And Engine Cooling. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Suspension. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
73 reportsTL* THE CONTACT OWNS A 1999 CADILLAC SEVILLE. THE CONTACT STATED THAT AFTER THE VEHICLE WAS STARTED, THE TEMPERATURE GAUGE DISPLAYED THAT THE VEHICLE WAS OVERHEATING. THE VEHICLE WAS NOT DIAGNOSED HOWEVER, THE TEMPERATURE GAUGE AND THE WATER PUMP WAS REPLACED BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAI…
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TL* THE CONTACT OWNS A 1999 CADILLAC SEVILLE. THE CONTACT STATED THAT AFTER THE VEHICLE WAS STARTED, THE TEMPERATURE GAUGE DISPLAYED THAT THE VEHICLE WAS OVERHEATING. THE VEHICLE WAS NOT DIAGNOSED HOWEVER, THE TEMPERATURE GAUGE AND THE WATER PUMP WAS REPLACED BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 294,853.
TL* THE CONTACT OWNS A 1999 CADILLAC SEVILLE. THE CONTACT STATED THAT THERE WAS OIL LEAKING FROM THE VEHICLE. IN ADDITION, THERE WAS SMOKE AND AN ABNORMAL ODOR. THE EXHAUST MANIFOLD AND THE ENGINE WERE BEING AFFECTED BY THE FAILURE WHICH COULD RESULT IN A FIRE. THE VEHICLE WAS TAKEN TO THE DEALER WHO REPLACED ELEVEN GASKETS WITH…
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TL* THE CONTACT OWNS A 1999 CADILLAC SEVILLE. THE CONTACT STATED THAT THERE WAS OIL LEAKING FROM THE VEHICLE. IN ADDITION, THERE WAS SMOKE AND AN ABNORMAL ODOR. THE EXHAUST MANIFOLD AND THE ENGINE WERE BEING AFFECTED BY THE FAILURE WHICH COULD RESULT IN A FIRE. THE VEHICLE WAS TAKEN TO THE DEALER WHO REPLACED ELEVEN GASKETS WITHIN THE ENGINE, BUT THE FAILURE RECURRED. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 99V070000 (ELECTRICAL SYSTEM). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 103,000. UPDATE 1/13/16 LN *JS
MY SON ALMOST DIED ON OCTOBER 25, 2013 IN HIS 1999 CADILLAC SEVILLE IN OUR DRIVEWAY WHILE HE WAS RELAXING IN IT WITH HIS DOG. HE HAD FALLEN ASLEEP WAITING FOR HIS MOTHER/MY WIFE AND THE ENGINE CAUGHT FIRE. HE NEEDED TO CLIMB OUT OF WINDOW AND PULL HIS DOG THROUGH THE WINDOW. HE INJURED HIMSELF AND WENT TO HOSPITAL. THE F…
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MY SON ALMOST DIED ON OCTOBER 25, 2013 IN HIS 1999 CADILLAC SEVILLE IN OUR DRIVEWAY WHILE HE WAS RELAXING IN IT WITH HIS DOG. HE HAD FALLEN ASLEEP WAITING FOR HIS MOTHER/MY WIFE AND THE ENGINE CAUGHT FIRE. HE NEEDED TO CLIMB OUT OF WINDOW AND PULL HIS DOG THROUGH THE WINDOW. HE INJURED HIMSELF AND WENT TO HOSPITAL. THE FIRE WAS SO INTENSE THAT THE ENGINE FELL APART FROM HEAT, THE CABIN WAS DESTROYED, FRONT TIRES ARE GONE/MELTED WHILE TRUNK AND GAS TANK WERE RELATIVELY FINE. THE POLICE AND FIRE DEPARTMENTS RESPONDED TO THIS DISASTER IN OUR DRIVEWAY. MY SON ALSO LOST VARIOUS PERSONAL POSSESSIONS AND HIS TRANSPORTATION TO WORK. IT HAS BEEN SEVERAL MONTHS SINCE MY SON'S NEAR DEATH EXPERIENCE AND THE ONLY THING GM SAYS IS THAT THE FIRE DAMAGED THE CAR AND THERE IS NOTHING IT CAN DO. IT ALSO HAS INFORMED ME THAT IF I WISH TO TAKE ANY OTHER ACTION, I MUST RETAIN THE VEHICLE, WHICH IS A BURNED-OUT SHELL OF A VEHICLE IN OUR FRONT DRIVEWAY. IT IS A REMINDER EVERY DAY THAT MY SON ALMOST DIED IN WHAT I THOUGHT WAS A HIGH QUALITY CAR AND GM DOES NOT CARE ABOUT ITS CUSTOMERS. I WAS HOPING THAT GM WOULD RESOLVE THIS MATTER IN A REASONABLE MANNER SO MY SON COULD MOVE FORWARD WITH HIS LIFE. HE LOST SEVERAL PERSONAL AFFECTS, HIS PRESCRIPTION EYE GLASSES, SCHOOL SUPPLIES AND MONEY HE HAD WITHDRAWN TO GIVE TO MY WIFE FOR A SCHOOL BILL. I ALSO HAVE BEEN UNABLE TO USE OUR BONNEVILLE FOR 5 MONTHS BECAUSE THE CADILLAC IS BLOCKING ACCESS TO IT. IS THERE ANYTHING YOU CAN DO THAT WILL RESOLVE THIS MATTER IN A FAIR MANNER? WE NEED IMMEDIATE ASSISTANCE FROM GM. THANK YOU. *TR
WHEN I DRIVE AT ANY SPEED RANDOMLY THE GAS GAUGE GOES TO EMPTY,WINDOWS DON'T WORK, AC GOES OFF BUT FAN STILL BLOWS, POWER LOCKS DON'T WORK, LIGHTS STAY ON WHEN I STOP AND GET OUT, BUT WHEN I PUT THE KEY BACK IN AND TURN IT TO THE "ON" POSITION AND BACK OFF EVERYTHING WORKS AGAIN MY BATTERY WENT DEAD A FEW TIMES DUE TO THE LIGHTS…
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WHEN I DRIVE AT ANY SPEED RANDOMLY THE GAS GAUGE GOES TO EMPTY,WINDOWS DON'T WORK, AC GOES OFF BUT FAN STILL BLOWS, POWER LOCKS DON'T WORK, LIGHTS STAY ON WHEN I STOP AND GET OUT, BUT WHEN I PUT THE KEY BACK IN AND TURN IT TO THE "ON" POSITION AND BACK OFF EVERYTHING WORKS AGAIN MY BATTERY WENT DEAD A FEW TIMES DUE TO THE LIGHTS STAYING ON AND MY GIRLFRIEND NOT KNOWING WHAT'S GOING ON...WHAT IS THAT!!!!! *JB
APPLIED BRAKES AND FRONT END DID NOT DIP AS IT SHOULD HAVE; NO GRIPPING AS IT SHOULD HAVE; FELT GRINDING AND SLIPPAGE AS VEHICLE CONTINUED FORWARD WITHOUT LOSING ANY MOMENTUM. THERE WAS SUFFICIENT STOPPING DISTANCE THAT VEHICLE SPEED SHOULD HAVE BEEN REDUCED AND STOPPED. *TR
TL* THE CONTACT OWNS A 1999 CADILLAC SEVILLE STS. THE CONTACT WAS DRIVING 25 MPH WHEN THE VEHICLE BEGAN TO OVERHEAT ABNORMALLY. THE CONTACT TOOK THE VEHICLE TO THE DEALER TO HAVE THE GASKET REPLACED AROUND THE COOLING SYSTEM YET THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT …
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TL* THE CONTACT OWNS A 1999 CADILLAC SEVILLE STS. THE CONTACT WAS DRIVING 25 MPH WHEN THE VEHICLE BEGAN TO OVERHEAT ABNORMALLY. THE CONTACT TOOK THE VEHICLE TO THE DEALER TO HAVE THE GASKET REPLACED AROUND THE COOLING SYSTEM YET THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE ENGINE WOULD NEED TO BE REPLACED. THE CONTACT CALLED THE MANUFACTURER REGARDING THE ENGINE REPLACEMENT AND THE MANUFACTURER INFORMED THE CONTACT THAT THEY WERE UNABLE TO PROVIDE ANY ASSISTANCE. THE CONTACT STATED THE MANUFACTURER SHOULD BE HELD RESPONSIBLE FOR THE REPAIRS. THE FAILURE MILEAGE WAS 76,000.
TL*THE CONTACT OWNS A 1999 CADILLAC SEVILLE. WHILE DRIVING AT APPROXIMATELY 45 MPH, THE ELECTRICAL COMPONENT THAT CONTROLLED THE STEERING AND BRAKES SUDDENLY FAILED. THE CONTACT PULLED OVER AND RESTARTED THE VEHICLE WHICH SEEMED TO SOLVE THE PROBLEM. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHERE THE CONTACT WAS INFORME…
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TL*THE CONTACT OWNS A 1999 CADILLAC SEVILLE. WHILE DRIVING AT APPROXIMATELY 45 MPH, THE ELECTRICAL COMPONENT THAT CONTROLLED THE STEERING AND BRAKES SUDDENLY FAILED. THE CONTACT PULLED OVER AND RESTARTED THE VEHICLE WHICH SEEMED TO SOLVE THE PROBLEM. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THE ECM (ELECTRONIC CONTROL MODULE) NEEDED TO BE REPLACED. HE CALLED THE MANUFACTURER BUT WAS TOLD THAT THEY COULD NOT ASSIST HIM WITH THE REPAIR COSTS. THE CURRENT AND FAILURE MILEAGES WERE 50,142.
THIS MAY BE NOTHING YOU CAN HELP WITH, HOWEVER THE NORTHSTAR ENGINES MADE BY GM HAVE HAD A DEFECT FOR MANY, MANY YEARS. THERE ARE NO RECORDS THAT YOU HAVE CHECKED INTO THE PROBLEMS WITH THIS. IT REGARDS THE HEAD GASKETS BREAKING AT AN ALARMING AND CONSISTENT RATE FOR THE PAST 10 YEARS! ASK ANY MECHANIC ABOUT THIS. AROUND 100,000…
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THIS MAY BE NOTHING YOU CAN HELP WITH, HOWEVER THE NORTHSTAR ENGINES MADE BY GM HAVE HAD A DEFECT FOR MANY, MANY YEARS. THERE ARE NO RECORDS THAT YOU HAVE CHECKED INTO THE PROBLEMS WITH THIS. IT REGARDS THE HEAD GASKETS BREAKING AT AN ALARMING AND CONSISTENT RATE FOR THE PAST 10 YEARS! ASK ANY MECHANIC ABOUT THIS. AROUND 100,000 MILES ON THE ENGINE THE HEAD GASKETS BREAK, AND COOLANT LEAKS INTO THE ENGINE. NO ONE WILL REPLACE THE GASKETS. ALL YOU CAN DO IS SPEND A SMALL FORTUNE ($5,000 TO $9,000) ON A NEW ENGINE. A WASTE OF MONEY SINCE THE NEXT NORTHSTAR ENGINE WILL PROBABLY DO THE SAME THING. THIS IS SOMETHING THAT GM KNOWS ABOUT AND CONTINUES TO IGNORE. NO WONDER THEY ARE GOING OUT OF BUSINESS. AFTER 100 YEARS THEY STILL CANNOT PRODUCE A RELIABLE ENGINE! IF YOU EXPECT AMERICANS TO CONTINUE BUYING AMERICAN CARS, ESPECIALLY CADILLACS, PLEASE DO SOME RESEARCH ON THIS. YOU CAN FIND LETTERS WRITTEN BY SEVILLE OWNERS ON THE WEB ABOUT THIS. I AM MOST CERTAINLY NOT THE ONLY ONE, JUST ONE OF MANY, MANY LEMON OWNERS. HOPING YOU CARE ENOUGH TO HAVE LISTENED AND CHECK THIS OUT, SINCERELY *TR
TL*THE CONTACT OWNS A 1999 CADILLAC SEVILLE. THE CONTACT SMELLS GASOLINE WHENEVER THE VEHICLE IS STARTED. HE DISCOVERED THAT A FUEL RAIL WAS LEAKING ON THE NUMBER ONE CYLINDER. THE DEALER STATED THAT THERE WERE NO OPEN RECALLS. THE CURRENT MILEAGE WAS 62,640 AND FAILURE MILEAGE WAS 62,540. UPDATED 07/29/08 *BF THE FUEL R…
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TL*THE CONTACT OWNS A 1999 CADILLAC SEVILLE. THE CONTACT SMELLS GASOLINE WHENEVER THE VEHICLE IS STARTED. HE DISCOVERED THAT A FUEL RAIL WAS LEAKING ON THE NUMBER ONE CYLINDER. THE DEALER STATED THAT THERE WERE NO OPEN RECALLS. THE CURRENT MILEAGE WAS 62,640 AND FAILURE MILEAGE WAS 62,540. UPDATED 07/29/08 *BF THE FUEL RAIL CRACKED JUST ABOVE THE CYLINDER #1. THE CONSUMER STATED A RECALL HAD BEEN ISSUED ON PRIOR YEARS. UPDATED 07/29/08. *JB
Official recalls
199V070000 · Electrical System:alternator/generator/regulator
Apr 12, 1999
VEHICLE DESCRIPTION: PASSENGER VEHICLES. AN ELECTRICAL SHORT CAN DEVELOP IN THE GENERATOR, EVEN WHEN THE ENGINE IS OFF.
Consequence & remedy
Consequence: THE ELECTRICAL SHORT COULD CAUSE AN ENGINE COMPARTMENT FIRE THAT COULD SPREAD TO THE REST OF THE VEHICLE AND ANYTHING NEAR IT.
Remedy: DEALERS WILL REPLACE THE GENERATOR.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1RQ99013 · Cadillac Coolant Cooled Alternator Fires
Opened Jun 10, 1999 · Closed Feb 22, 2002
Status: closed (inferred from source dates) · Engine And Engine Cooling
No summary supplied.
Illustration