Problems · NHTSA complaints
1999 Cadillac Seville problems
Owners filed 73 complaints about the 1999 Cadillac Seville with NHTSA between Jun 1999 and Jun 2022. The most-cited component is engine and engine cooling (23).
Complaints
73
Filed with NHTSA
Crashes
1
Reported by owners
Fires
2
Reported by owners
Injuries
4
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine and engine cooling23
- Electrical system16
- Suspension9
- Service brakes, hydraulic8
- Steering8
- Air bags5
- Vehicle speed control4
- Engine3
- Fuel system, gasoline3
- Seat belts3
- Seats3
- Exterior lighting3
- Tires3
- Equipment3
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
10
8
7
12
13
6
4
3
0
1
1
2
0
2
0
1
1
1
0
0
0
0
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 1999 | 10 |
| 2000 | 8 |
| 2001 | 7 |
| 2002 | 12 |
| 2003 | 13 |
| 2004 | 6 |
| 2005 | 4 |
| 2006 | 3 |
| 2007 | 0 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 0 |
| 2012 | 2 |
| 2013 | 0 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine and engine cooling
23 reports
“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.”
Electrical system
16 reports2 fires1 related recall
“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”
Suspension
9 reports
“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”
Service brakes, hydraulic
8 reports1 crash
“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”
Steering
8 reports
“PROBLEM INVOLVES FAULTY STEERING RACK, IT HAS RUPTURED SEAL. WHICH PROHIBITS POWER STEERING ASSIST, WHILE MAKING LEFT HAND TURNS. *BF THE LACK OF POWER STEERING RESTRICTS THE CONSUMERS ABILITY TO TURN TO THE LEFT. *TC *JB”
Air bags
5 reports
“DRIVER NOTICED THAT THE SRS LIGHT APPEARED ON THE DASHBOARD AND REMAINED ON. THE CAUSE HAS NOT BEEN DETERMINED AT THIS TIME. THE DRIVER WILL CONTACT THE DEALER IN THE NEAR FUTURE. *AK”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.