🏷️ Basic Information

Make:

Cadillac

Model:

STS

Year:

2011

Generation Code:

Second Generation (2005-2011)

Chassis Code:

GMT07

👋 Introduction

Segment:

Full-size luxury sedan

Target Audience:

Luxury car buyers seeking performance and advanced technology.

Competitors:

BMW 5 Series, Mercedes-Benz E-Class, Audi A6, Lexus GS.

Performance Focus:

Emphasizes powerful V8 engines and sophisticated chassis dynamics, especially with AWD.

Luxury Appointments:

Interior comfort, premium materials, advanced technology for its era.

Manual Utility:

Empowers owners and independent technicians to perform comprehensive maintenance and repairs, saving significant costs.

📋 Manual Details

All Models Engines:

True

All Trim Levels:

True

All Transmission Types:

True

Estimated Page Count:

Extensive (Specific count not provided, but described as 'Complete Workshop Service Repair Manual')

Type:

Workshop Service Repair Manual

Language:

English

Format:

Downloadable (PDF)

📖 Manual Coverage

Engine Mechanical:

Complete diagnostics, repair, and overhaul procedures for all engine variants (V6, V8).

Engine Performance:

Fuel system, ignition system, emission control systems, cooling system, lubrication system.

Transmission:

Detailed repair and overhaul of automatic transmissions (e.g., 6L80E/6L90E).

Drivetrain:

All-Wheel Drive (AWD) system, rear-wheel drive (RWD) axle and driveshaft components.

Suspension:

Front and rear suspension systems, shock absorbers, springs, control arms, bushings, power steering.

Brakes:

Hydraulic brake system, Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), brake pad/rotor replacement, caliper service.

Steering:

Power steering system, steering rack, tie rods, steering column.

Electrical System:

Battery, charging system, starting system, lighting system, power windows, locks, mirrors.

Body And Frame:

Body panel removal/installation, interior trim, doors, hood, trunk, chassis diagnostics.

HVAC:

Heating, ventilation, and air conditioning (HVAC) system diagnosis and repair, refrigerant handling.

Infotainment And Electronics:

Infotainment system, navigation, audio, climate control modules, body control modules (BCM).

Safety Systems:

Airbag system (SRS), seat belt pre-tensioners, diagnostic procedures for safety restraint systems.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and changes.

Troubleshooting:

Diagnostic flowcharts, symptom analysis, common fault finding.

Repair:

Component removal, installation, adjustment, and replacement for all systems.

Rebuild Overhaul:

Engine and transmission overhaul procedures, including torque specifications and clearances.

Diagnostics:

OBD-II diagnostics, specific module testing, wiring diagrams, diagnostic trouble codes (DTCs).

Depth:

Comprehensive, from basic maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Searchability:

Likely searchable text content for easy navigation and keyword searches.

Printability:

High quality, printable pages for individual sections or the entire manual.

Digital Binding:

N/A (Digital Download)

Digital Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine 1 Variant:

3.6L V6 (LLT - Direct Injection)

Engine 1 Displacement:

3564 cc (3.6 Liters)

Engine 1 Horsepower:

302 hp @ 6300 rpm

Engine 1 Torque:

272 lb-ft @ 4800 rpm

Engine 2 Variant:

4.6L V8 (Northstar L81)

Engine 2 Displacement:

4632 cc (4.6 Liters)

Engine 2 Horsepower:

320 hp @ 6400 rpm

Engine 2 Torque:

315 lb-ft @ 4400 rpm

Engine 3 Variant:

4.6L V8 (Northstar L7X - Performance variant)

Engine 3 Horsepower:

320 hp @ 6400 rpm (estimated, specific performance variants may vary)

Engine 3 Torque:

315 lb-ft @ 4400 rpm (estimated)

Fuel Delivery:

Electronic Fuel Injection (EFI) with Direct Injection (DI) on V6 models.

Fuel Type:

Premium Unleaded Gasoline

🔧 Transmission

Transmission Type:

6-speed Automatic (6L80E/6L90E)

Drive Layout:

Rear-Wheel Drive (RWD) standard on most models.

Transmission Type AWD:

All-Wheel Drive (AWD) available on most models.

Transmission Features:

Driver Shift Control (manual shifting capability), Performance Algorithm Shifting (PAS).

📐 Dimensions

Length:

199.4 inches (5065 mm)

Width:

72.5 inches (1841 mm)

Height:

57.9 inches (1471 mm)

Wheelbase:

115.7 inches (2939 mm)

Curb Weight Approx V6:

3900 - 4100 lbs (1769 - 1860 kg)

Curb Weight Approx V8:

4050 - 4250 lbs (1837 - 1928 kg)

🛡️ Safety Features

NHTSA Front Impact:

5-Star Rating (for 2009-2011 models, typical for this era)

IIHS Top Safety Pick:

Good (Frontal Offset) - Specific year ratings may vary.

ABS:

Standard Anti-lock Braking System

Traction Control:

Standard Traction Control System (TCS)

Stability Control:

Standard StabiliTrak Electronic Stability Control

Brake Assist:

Available/Standard

Airbags:

Frontal airbags, side-impact airbags, curtain airbags.

Seat Belts:

3-point seat belts with pretensioners, LATCH system for child seats.

💡 Technology Features

System Name:

Cadillac User Experience (CUE) - though CUE was more prominent in later models, the 2011 STS featured an advanced infotainment system for its time.

Features:

Touchscreen display, navigation system, premium audio (Bose), Bluetooth connectivity, heated/ventilated seats, multi-zone climate control.

Adaptive Cruise Control:

Available

Parking Assist:

Available Rear Parking Assist sensors.

Blind Spot Monitoring:

Available Side Blind Zone Alert.

Bluetooth:

Available for hands-free calling and audio streaming.

Usb Ports:

Available (depending on trim and options).

🔧 Maintenance

Oil Change Interval:

Typically 7,500 miles (12,000 km) or 12 months, whichever comes first, with synthetic oil. Consult manual for specific oil type and viscosity.

Air Filter Replacement:

Every 30,000 miles (48,000 km) or as needed based on driving conditions.

Transmission Fluid Change:

Recommended every 50,000-100,000 miles (80,000-160,000 km) for automatic transmissions, depending on usage. Consult manual for specific fluid type (e.g., Dexron VI).

Engine Oil:

SAE 5W-30 Synthetic Motor Oil (GM-LL-A-025 or equivalent)

Coolant:

Dex-Cool (Orange) Long-Life Antifreeze/Coolant (GMC 6247M or equivalent)

Brake Fluid:

DOT 3 or DOT 4, depending on specific components.

Common Issue 1:

Water pump leaks (especially on V6 models).

Common Issue 2:

Front suspension component wear (e.g., ball joints, bushings).

Common Issue 3:

HVAC system issues (e.g., blend door actuators).

Common Issue 4:

Infotainment system glitches or failure.

📚 Vehicle History

Cadillac Legacy:

Long history of luxury and innovation in the American automotive market.

Sts Lineage:

Successor to the Cadillac Seville, positioned as Cadillac's flagship sedan. The STS was based on the rear-wheel-drive Sigma platform.

Production Period:

2005-2011 (Second Generation)

Manufacturing Location:

Lansing Grand River Assembly, Lansing, Michigan, USA

🏆 Awards & Recognition

Auto Press Reviews:

Often praised for its comfortable ride, powerful engines (especially the V8), and quiet cabin. Criticisms sometimes included interior material quality compared to European rivals and a less engaging driving experience than some competitors.

Jdpowe:

Cadillac brand generally received mid-pack to above-average ratings in J.D. Power initial quality and dependability studies during this period. Specific model ratings vary by year.