🏷️ Basic Information

Make:

Cadillac

Model:

DTS

Model Years Covered:

2006, 2007, 2008, 2009, 2010, 2011

Product Name:

Cadillac DTS Complete Workshop Service Repair Manual 2006-2011

Vin Code Prefix:

1G

👋 Introduction

Positioning:

The Cadillac DTS was positioned as a flagship luxury sedan, known for its comfort, spacious interior, and V8 power. This manual serves the owners and technicians working on these premium vehicles.

Competitors:

Competed with other large luxury sedans like the Lincoln Town Car, Chrysler 300C, Mercedes-Benz S-Class, and BMW 7 Series during its production run.

Features:

Emphasis on comfort, quiet ride, powerful V8 engines, and available luxury features. The manual reflects the complexity and advanced systems of a premium vehicle.

Value:

Provides essential information for maintaining and repairing the Cadillac DTS, enabling cost savings on dealership service and empowering owners with knowledge for DIY tasks.

📋 Manual Details

Systems Covered:

Engine mechanical, Engine electrical, Fuel system, Cooling system, Exhaust system, Ignition system, Lubrication system, Transmission (automatic), Drivetrain, Suspension, Steering, Brakes (hydraulic and ABS), Climate control (HVAC), Electrical systems (lighting, power accessories, body controls), Body (interior and exterior), Diagnostic trouble codes (DTCs), Maintenance, Troubleshooting, Wiring diagrams, Specifications, Torque values, Special tools.

Estimated Page Count:

Comprehensive (exact number not specified, but typical for full workshop manuals covering multiple years and all systems)

Type:

Workshop Service Repair Manual

Language:

English

Format:

Downloadable PDF

📖 Manual Coverage

Engine Mechanical:

Detailed procedures for engine removal/installation, cylinder head service, piston and connecting rod service, crankshaft and main bearing service, camshaft and valve train service, timing system.

Engine Electrical:

Starter, alternator, ignition system, sensor diagnostics, wiring diagrams for all engine sensors and actuators.

Fuel System:

Fuel pump, fuel injectors, fuel pressure regulator, evaporative emission control (EVAP) system, fuel tank service.

Cooling System:

Radiator, water pump, thermostat, coolant flow, fan operation, leak testing.

Transmission:

Detailed repair and overhaul procedures for the automatic transmission (likely the 4T80-E or similar GM front-wheel-drive units), including hydraulic control, torque converter, seals, and clutches.

Suspension Steering:

Front and rear suspension components, power steering system, steering column, wheel alignment specifications.

Brakes:

Brake system diagnostics, disc brake pad and rotor replacement, caliper service, ABS system component testing, brake fluid specifications and bleeding procedures.

Climate Control:

HVAC system operation, component replacement (compressor, condenser, evaporator), refrigerant handling, diagnostics of climate control modules and actuators.

Body Interior Exterior:

Door mechanisms, seat adjustments, interior trim removal/installation, exterior panel alignment, lighting systems, wiper system.

Safety Systems Diagnostics:

Detailed diagnostics for airbags, seatbelt pretensioners, and ABS/StabiliTrak systems.

Maintenance Procedures:

Oil and filter changes, air filter replacement, spark plug replacement, coolant flushes, brake fluid changes, transmission fluid and filter service, tire rotations, battery maintenance.

Troubleshooting Diagnostics:

Step-by-step diagnostic flowcharts for common drivability issues, electrical faults, and system malfunctions. Includes interpretation of diagnostic trouble codes (DTCs).

Repair Rebuild:

Complete disassembly, repair, and reassembly procedures for all major mechanical and electrical components. Includes detailed torque specifications for all fasteners.

Electrical Diagnostics:

Detailed wiring diagrams for all vehicle systems, pinpoint tests for electrical components, module testing and replacement.

Body And Trim Repair:

Procedures for removal and installation of interior and exterior trim, panels, bumpers, glass, and associated hardware.

Wheel And Tire Specifications:

Wheel bolt pattern (5x115mm), recommended tire sizes (e.g., P235/55R17, P235/50R18), and inflation pressures.

Depth:

Comprehensive, covering everything from basic routine maintenance and troubleshooting to complete engine and transmission overhauls. Suitable for professional technicians and experienced DIY mechanics.

Wiring Diagrams:

Extensive, detailed wiring diagrams for all electrical systems, including power distribution, grounding points, circuit descriptions, and connector views.

📊 Manual Specifications

File Type:

PDF

Quality:

High-resolution scans of original factory documentation, ensuring clarity of text and images. Printable.

Binding:

Not applicable (downloadable digital format). User can print and bind as desired.

Paper Type:

Not applicable (downloadable digital format). User can choose print paper type.

Software:

Adobe Acrobat Reader (free download available).

⚙️ Engine Specifications

Engine Code And Description:

4.6L V8 Northstar (LD8/L37). Features include aluminum block and heads, dual overhead camshafts (DOHC), 4 valves per cylinder, sequential fuel injection, and variable valve timing (VVT) on some variants.

Horsepower And Torque Ld8:

LD8 (275 hp @ 6000 rpm, 295 lb-ft @ 4400 rpm - typical figures for standard output)

Horsepower And Torque L37:

L37 (320 hp @ 6400 rpm, 315 lb-ft @ 4400 rpm - typical figures for performance output)

Injection Type:

Sequential Multi-Port Fuel Injection (MPI)

Coolant Capacity:

Approximately 14.5 quarts (13.7 liters) with Dex-Cool coolant.

Oil Capacity:

Approximately 5 quarts (4.7 liters) with filter, using SAE 5W-30 synthetic oil (check owner's manual for specific recommendations).

🔧 Transmission

Transmission Type:

4-speed automatic transaxle (GM 4T80-E or similar front-wheel-drive unit).

Optional Transmissions:

No optional transmissions were offered; all DTS models featured this automatic transaxle.

Features:

Driver Shift Control (manual shifting capability), electronic controls, potentially learning shift patterns.

Fluid Type:

Dexron VI Automatic Transmission Fluid (ATF).

📐 Dimensions

Wheelbase:

Approximately 115.2 inches (2926 mm)

Length:

Approximately 207.6 inches (5273 mm)

Width:

Approximately 74.4 inches (1890 mm)

Height:

Approximately 58.2 inches (1478 mm)

Curb Weight:

Approximately 4,100 - 4,300 lbs (1860 - 1950 kg) depending on trim and options.

Gross Vehicle Weight Rating:

Typically around 5,300 lbs (2400 kg).

🛡️ Safety Features

NHTSA Front Impact Driver:

5 Stars (for models tested)

NHTSA Front Impact Passenger:

5 Stars (for models tested)

IIHS Moderate Overlap Front:

Good (for models tested)

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control System (TCS), StabiliTrak (electronic stability control), Magnetic Ride Control (on some trims).

Passive Safety Features:

Front airbags (driver and passenger), front side-impact airbags, full-length side curtain airbags, active head restraints, front seatbelt pretensioners.

💡 Technology Features

Infotainment System:

Features like Bose premium audio system, DVD navigation, climate control display, and entertainment options are covered.

Driver Assistance Features:

Parking assist (rear), rain-sensing wipers, adaptive cruise control (optional), heated steering wheel, voice recognition systems.

Connectivity Features:

OnStar communication system (subscription-based) for safety, security, and concierge services. Bluetooth connectivity for hands-free calling on some models/options.

Lighting Systems:

Bi-xenon HID headlights, front fog lamps, LED taillamps, automatic headlamp control.

🔧 Maintenance

Oil Change Interval:

Refer to oil life monitor system or typically every 7,500 miles (12,000 km) or 6 months, using synthetic oil. Consult manual for specific guidance based on driving conditions.

Transmission Service Interval:

Recommended every 45,000 - 60,000 miles (72,000 - 96,000 km) for fluid and filter change, depending on driving conditions. Consult manual for precise interval.

Coolant Replacement Interval:

First change at 5 years/100,000 miles (160,000 km), then every 2 years/30,000 miles (48,000 km) thereafter for Dex-Cool. Always use the correct type.

Engine Oil Specification:

SAE 5W-30 Synthetic engine oil meeting GM standard GM6094M.

Coolant Specification:

GM P/N 12346290 (Orange) or equivalent Dex-Cool Long Life Antifreeze/Coolant.

Brake Fluid Specification:

DOT 3.

Common Issues And Recalls:

Potential issues include intake manifold gaskets, coolant leaks (especially around Northstar engine specific points), power steering pump leaks, ignition coil failures, and some electronic module issues. Recall history may involve airbags, fuel systems, or other safety-related components. The manual will detail diagnostic and repair procedures for these.

Spark Plug Type And Gap:

Typically platinum or iridium spark plugs. Gap specification will vary by engine, consult the manual for exact type and gap (e.g., 0.040-0.043 inches for some Northstar variants).

📚 Vehicle History

Cadillac Heritage:

Cadillac, a division of General Motors, has a long-standing reputation for luxury, prestige, and technological innovation in the American automotive industry since its founding in 1902.

Dts Lineage:

The DTS (Deville Touring Sedan) replaced the Cadillac Deville. It shared its platform (GM Epsilon platform, adapted) and powertrain with other large GM front-wheel-drive sedans but was distinguished by its unique styling and luxury appointments.

Production Years:

The Cadillac DTS was produced from the 2006 model year through the 2011 model year.

Manufacturing Location:

Detroit-Hamtramck Assembly plant, Detroit, Michigan, USA.

🏆 Awards & Recognition

Industry Awards:

The Northstar V8 engine, while having some specific maintenance needs, was recognized for its smooth operation and power. The DTS generally received good marks for comfort and interior quality in reviews of its time.

Consumer Ratings:

Consumer reviews often praised its comfortable ride, quiet cabin, and powerful engine. Some noted higher than average maintenance costs compared to less premium vehicles.