"How reliable is the 1998 Cadillac Deville?"

"Based on 310 NHTSA complaints, the 1998 Cadillac Deville has a median complaint mileage of 73000 miles. The most common issue is Headlights."

"What are common problems with the 1998 Cadillac Deville?"

"The most frequently reported component in NHTSA complaints for the 1998 Cadillac Deville is Headlights, accounting for a significant portion of the 310 total complaints filed."

1998 Cadillac Deville: Reliability Data

Source: NHTSA — 310 complaints

310

Total Complaints

73,000mi

Median Mileage

Headlights

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

42,000 25th Percentile

73,000 Median Mileage

105,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Headlights

Side/Window

Frontal

Antilock/Traction Control/Electronic Limited Slip

Gasoline

Air Bags

Rotor

Concealment Devices

Vehicle Speed Control

Cooling System

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"WHEN GOING IN REVERSE THE REARVIEW MIRROR AUTOMATICALLY TILTS DOWN, AND DOES NOT GIVE A CLEAR VIEW OF WHAT IS BEHIND THE VEHICLE. DEALER HAS NOT SEEN. *AK"

"TRACTION SYSTEM ENGAGES INADVERTENTLLY, EFFECTING THE ABILITY TO CONTROL BRAKES."

"VEHICLE HAS A PASSENGER OUTSIDE MIRROR TILT FEATURE WHEN CAR IS PLACED IN REVERSE, HOWEVER CONSUMER HAS ALMOST HAD ACCIDENTS DUE TO POOR VISIBILITY. (DESIGN FLAW)."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Headlights 29 complaints

25th: 58,816 mi Median: 70,000 mi 75th: 95,805 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 32 IL: 30 FL: 26 OH: 23 TX: 22 GA: 19 NY: 15 MI: 13 TN: 13 MD: 12

Who Files Complaints?

40.6%

Original Owners

59.4%

Second+ Owners

Cadillac Deville — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1990	111	100,000	Vehicle Speed Control	14
1991	105	105,000	Antilock/Traction Control/Electronic Limited Slip	9
1992	181	109,000	Tank Assembly	17
1993	123	126,554	Antilock/Traction Control/Electronic Limited Slip	13
1994	185	88,690	Engine	12
1995	197	103,000	Gasoline	7
1996	281	89,000	Hydraulic Power Assist System	14
1997	339	82,000	Antilock/Traction Control/Electronic Limited Slip	5
1999	239	65,000	Side/Window	19
2000	312	65,000	Electrical System	54
2001	239	78,000	Electrical System	30
2002	237	63,500	Electrical System	30
2003	208	68,500	Electrical System	21
2004	210	68,872	Electrical System	17
2005	132	80,000	Electrical System	17

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28