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Research · Large Cars

2008 Cadillac DTSRecalls, problems, MPG & safety

NHTSA lists 3 safety recalls and 86 owner complaints for the 2008 Cadillac DTS. Most complaints involve electrical system (39) and engine (14). The EPA rates it 18 mpg combined.

Check a VINAdd to my garage
Combined MPG
18mpg
EPA · 2 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
3campaigns
Latest Jun 2014
Owner complaints
86
Top: electrical system
Fuel cost / yr
$3,450est.
EPA estimate, best version
01 —Recalls

Safety recalls

3 NHTSA campaigns · applies to some vehicles, check your VIN

Electrical system: ignition

Free remedy

This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.

Electrical systemReported Jun 23, 2014NHTSA 14V355000

Electrical system

Free remedy

GM IS RECALLING CERTAIN MODEL YEAR 2006-2009 BUICK, LUCERNE; CADILLAC DTS; HUMMER H2; MODEL YEAR 2008-2009 BUICK ENCLAVE; CADILLAC CTS; MODEL YEAR 2007-2009 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE; GMC ACADIA, SIERRA, YUKON, YUKON XL; SATURN OUTLOOK; AND MODEL YEAR 2009 CHEVROLET TRAVERSE VEHICLES EQUIPPED WITH A HEATED WASHER FLUID SYSTEM (HWFS). A RECALL WAS IMPLEMENTED IN 2008 TO ADD A FUSE TO THE CONTROL CIRCUIT HARNESS TO ADDRESS THE POTENTIAL CONSEQUENCES OF A PRINTED CIRCUIT BOARD (PCB) ELECTRICAL SHORT. HOWEVER, THERE HAVE BEEN NEW REPORTS OF THERMAL INCIDENTS ON HWFS MODULES AFTER THIS IMPROVEMENT WAS INSTALLED. THESE INCIDENTS RESULTED FROM A NEW FAILURE MODE ATTRIBUTED TO THE DEVICE'S THERMAL PROTECTION FEATURE. THE SIGNIFICANCE VARIES FROM MINOR DISTORTION TO CONSIDERABLE MELTING OF THE PLASTIC AROUND THE HWFS FLUID CHAMBER.

Electrical systemReported Jun 4, 2010NHTSA 10V240000

Electrical system

Free remedy

GM IS RECALLING 857,735 MY 2006-2008 BUICK LUCERNE; CADILLAC DTS; HUMMER H2; MY 2007-2008 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE; GMC ACADIA, SIERRA, YUKON, YUKON XL, SATURN OUTLOOK; AND MY 2008 BUICK ENCLAVE VEHICLES EQUIPPED WITH A HEATED WIPER WASHER FLUID SYSTEM. A SHORT CIRCUIT ON THE PRINTED CIRCUIT BOARD FOR THE WASHER FLUID HEATER MAY OVERHEAT THE CONTROL-CIRCUIT GROUND WIRE.

Electrical systemReported Aug 28, 2008NHTSA 08V441000
Data from NHTSA Recalls API · synced Nov 8, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

86 complaints filed with NHTSA · Jan 2008 – Aug 2024
  1. Electrical system39
  2. Engine14
  3. Fuel/propulsion system8
  4. Exterior lighting7
  5. Air bags6
  6. Seat belts6
  7. Steering5
  8. Structure5
  9. Electronic stability control (esc)3

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each DTS model year we’ve synced.

View as table
Model yearNHTSA complaints
2006255
200797
200886
200935
201022
201116
Crashes reported
6
Fires reported
6
Injuries reported
7
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 8, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Electrical system

39 reports1 crash4 fires
“The contact owns a 2008 Cadillac DTS. The contact stated while driving at an undisclosed speed, the message "Alternator Not Charging" was displayed. The vehicle was taken to an independent mechanic where it was diagnosed that oil was leaking onto the alternator and exhaust manifold. The alternator was replaced. However, the contact stated while driving at various speeds, there was a significant amount of smoke coming from underneath the vehicle. There was no warning lights illuminated. Additionally, the contact noticed a trail of oil leak in the driveway. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 87,000.”
Owner complaint to NHTSAFiled Aug 12, 2022Electrical system, Engine and engine coolingODI 11479055

Engine

14 reports1 fire
“The contact owns a 2008 Cadillac DTS. The contact stated that while the vehicle was at an independent mechanic for an oil change, the vehicle was diagnosed with an oil leak from the oil pan. The contact was informed that the oil pan needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 85,000. The VIN was unavailable.”
Owner complaint to NHTSAFiled Aug 26, 2024EngineODI 11611001

Fuel/propulsion system

8 reports2 fires
“DECEMBER 16 2020 NHTSA ID NUMBER 11383838 OIL LEAK UNDER ENGINE COMING FROM ENGINE, TRANSMISSION, AND POWER STEERING PUMP. ALSO WHITE SMOKE COMING FROM ENGINE ON PASSENGER SIDE FOLLOWING STOP ON DRIVEWAY.”
Owner complaint to NHTSAFiled Mar 18, 2021Unknown or other, Engine, Fuel/propulsion systemODI 11403767
All 2008 DTS problemsSend a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 8, 2026
04 —Key specs

Engines, transmissions & drive

2 versions rated by the EPA
EPA class
Large Cars
Engines
4.6L 8-cyl
Transmissions
Automatic 4-spd
Drive
Front-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 8, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
DTS
Auto 4-spd, 8 cyl, 4.6 L, 275HP · Front-Wheel Drive
152318$3,450494
DTS
Auto 4-spd, 8 cyl, 4.6 L, 300HP · Front-Wheel Drive
152218$3,450494
  • DTS
    Auto 4-spd, 8 cyl, 4.6 L, 275HP
    15 city · 23 hwy · $3,450/yr
    18
    mpg comb.
  • DTS
    Auto 4-spd, 8 cyl, 4.6 L, 300HP
    15 city · 22 hwy · $3,450/yr
    18
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Nov 8, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2008 Cadillac DTS as of Nov 8, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 8, 2026Vehicle 2556
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2008 DTS questions

How many recalls does the 2008 Cadillac DTS have?

3 safety recalls as of Nov 8, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2008 Cadillac DTS problems?

Owners filed 86 complaints with NHTSA. The most-cited components are electrical system (39), engine (14), fuel/propulsion system (8). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2008 Cadillac DTS get?

The EPA rates the 2008 Cadillac DTS at 18 mpg combined, depending on engine and drivetrain (2 versions rated).

Data from NHTSA & EPA · synced Nov 8, 2026