Vehicle Segment:
Full-size Luxury Sedan
Brand Positioning:
Flagship sedan offering comfort, luxury, and American-style cruising
Key Competitors:
Lincoln Town Car, Chrysler 300, Mercedes-Benz S-Class, BMW 7 Series
Manual Advantage:
Licensed OE information, convenient online access, comprehensive coverage, cost-effective alternative to printed manuals
Vehicle Selling Points:
Spacious interior, comfortable ride, powerful V8 engine, sophisticated styling, extensive feature set
Engine:
4.6L Northstar V8 (L37 & LD8 variants)
Transmission:
4-Speed Automatic (4T80-E)
Drivetrain:
Front-Wheel Drive (FWD)
Suspension:
Front Strut, Rear Multi-link Independent
Brakes:
Front Ventilated Discs, Rear Solid Discs with ABS
Steering:
Hydraulic Power Rack and Pinion
Electrical:
Complete wiring diagrams, diagnostic procedures for all electrical systems
HVAC:
Heating, Ventilation, and Air Conditioning system diagnosis and repair
Body:
Body panels, interior trim, glass, doors, locks, exterior lighting
Chassis:
Frame, subframes, mounts
Safety Systems:
Airbags, seat belts, anti-lock braking system (ABS), traction control (TCS), stability control (StabiliTrak)
Maintenance:
Scheduled maintenance (oil changes, fluid flushes, filter replacements), component checks
Troubleshooting:
Diagnostic trouble codes (DTCs), symptom-based diagnostics, pinpoint tests
Repair:
Component removal and installation, adjustments, calibrations
Diagnostics:
Engine performance diagnostics, transmission diagnostics, ABS/TCS/StabiliTrak diagnostics, HVAC system diagnostics
Wiring Diagrams:
Comprehensive and detailed electrical wiring schematics for all systems
Depth:
Comprehensive OE-level service and repair information, suitable for DIY enthusiasts and professional technicians
Digital Format:
Web-based access, compatible with PC, laptop, smartphone, tablet browsers
Digital Quality:
High-resolution, searchable text and diagrams
Binding:
N/A (Online Software)
Paper Type:
N/A (Online Software)
Engine Code L37:
4.6L 32-Valve DOHC V8 Northstar
Engine Code Ld8:
4.6L 32-Valve DOHC V8 Northstar (Slightly detuned version)
Horsepower:
292 hp @ 6300 rpm
Torque:
284 lb-ft @ 4700 rpm
Horsepower:
275 hp @ 6000 rpm
Torque:
275 lb-ft @ 4000 rpm
Fuel Delivery:
Sequential Port Fuel Injection (SFI)
Recommended Fuel:
Premium Unleaded (91 octane or higher recommended for optimal performance)
ECU:
PCM (Powertrain Control Module) with integrated TCM (Transmission Control Module) functions
Emissions Controls:
Catalytic Converters, Oxygen Sensors, EGR (Exhaust Gas Recirculation)
Type:
4-Speed Automatic with Overdrive (4T80-E)
Optional Transmission:
N/A (Standard on all 2009 DTS models)
Transmission Control:
Driver Shift Control (manual shifting capability)
Fluid Type:
Dexron VI Automatic Transmission Fluid
Fluid Capacity:
Approximately 10.0 - 12.0 quarts (9.5 - 11.4 liters) for complete refill (check dipstick)
Length:
207.0 inches (5258 mm)
Width:
74.4 inches (1890 mm)
Height:
58.1 inches (1476 mm)
Wheelbase:
115.3 inches (2929 mm)
Curb Weight:
Approximately 4,100 - 4,250 lbs (1860 - 1928 kg), depending on trim and options
Gross Vehicle Weight Rating Gvwr:
Approximately 5,350 lbs (2427 kg)
Trunk Volume:
18.0 cubic feet (510 liters)
NHTSA Frontal Driver:
5-Star
NHTSA Frontal Passenger:
5-Star
NHTSA Side Driver:
5-Star
NHTSA Side Passenger:
5-Star
NHTSA Side Rear Passenger:
5-Star
IIHS Frontal Offset:
Good
Stability Control:
Standard StabiliTrak (Electronic Stability Control)
Traction Control:
Standard Traction Control System (TCS)
Brakes:
Anti-lock Braking System (ABS)
Airbags:
Dual front, front side-impact, side curtain airbags
Seatbelts:
3-point height-adjustable front, 3-point rear
Infotainment System:
Cadillac User Experience (CUE) was not standard on this model year. Likely equipped with a multi-function display with CD player, AM/FM radio, and optional navigation.
Audio System:
Bose premium audio system available on higher trims
Parking Assist:
Rear parking assist sensors (optional/standard depending on trim)
Cruise Control:
Adaptive Cruise Control (optional on some trims)
Bluetooth:
Available Bluetooth connectivity for hands-free calling
Remote Start:
Standard or optional remote start system
Oil Change Interval:
Every 7,500 miles or 12 months, whichever comes first (using synthetic oil)
Tire Rotation:
Every 7,500 miles
Coolant Flush:
Every 5 years or 100,000 miles (with initial fill)
Engine Oil:
SAE 5W-30, Synthetic (API SN or dexos1™)
Engine Oil Capacity:
5.5 US quarts (5.2 liters) with filter change
Power Steering Fluid:
Dexron III-H or equivalent
Common Problems:
StabiliTrak sensor issues, occasional coolant leaks (especially near front cover/water pump), transmission solenoid issues, minor electrical gremlins, front suspension component wear (ball joints, bushings)
Oil Filter:
ACDelco PF48, Wix 57060, Fram PH10575 (verify with VIN)
Engine Air Filter:
ACDelco A3147C, Wix 49163 (verify with VIN)
Cadillac Legacy:
Long-standing reputation for luxury, comfort, and technological innovation in American automotive history.
Dts Lineage:
Successor to the Cadillac de Ville and Seville models, continuing the tradition of large, comfortable American luxury sedans.
Production Period:
2006-2011
Manufacturing Location:
Hamtramck, Michigan, USA (Detroit/Hamtramck Assembly)
Safety Awards:
Multiple 5-star NHTSA safety ratings, Good IIHS ratings
Comfort Awards:
Consistently praised for its smooth and quiet ride, comfortable seating, and spacious interior, making it a strong contender in the luxury sedan segment for its intended purpose.
