2012 Cadillac CTS service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- V Black Diamond Coupe 2-Door
- Performance Wagon 4-Door
- V Sedan 4-Door
- Premium Sedan 4-Door
- V Coupe 2-Door
- Base Sedan 4-Door
- Premium Coupe 2-Door
- 3.6L Sedan 4-Door
- 3.0L Coupe 2-Door
- Premium Wagon 4-Door
- 3.0L Sedan 4-Door
- Luxury Wagon 4-Door
- Base Coupe 2-Door
- Luxury Coupe 2-Door
- V Wagon 4-Door
- Performance Sedan 4-Door
- Performance Coupe 2-Door
- 3.6L Wagon 4-Door
- 3.6L Coupe 2-Door
- Base Wagon 4-Door
- Luxury Sedan 4-Door
- 3.0L Wagon 4-Door
- Coupe Coupe 2-Door
- V Black Diamond Sedan 4-Door
Engines covered
- 6.2L 6162CC 376Cu. In. V8 GAS OHV Supercharged
- 3.6L 3564CC 217Cu. In. V6 GAS DOHC Naturally Aspirated
- 3.0L 182Cu. In. V6 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
GM IS RECALLING CERTAIN MODEL YEAR 2012 CADILLAC CTS VEHICLES MANUFACTURED FROM OCTOBER 21, 2011, THROUGH OCTOBER 26, 2011. THESE VEHICLES MAY HAVE A CONDITION IN WHICH THE POWER VACUUM BRAKE BOOST P
THIS COULD RESULT IN A LOSS OF ABILITY TO BRAKE AND a vehicle CRASH WITHOUT PRIOR WARNING.
CADILLAC DEALERS WILL INSPECT THE POWER VACUUM BRAKE BOOST PUSHROD RETENTION NUT, AND IF NECESSARY,
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This service bulletin provides information on Tire Sidewall Irregularities.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the s
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
Showing the 8 most recent of 608 technical service bulletins on file with NHTSA.
THE VEHICLE WAS DRIVING IN NORMAL CONDITIONS, AT APPROX 40MPH IN THE EVENING. WHEN ACCELERATING TO PASS A CAR GOING SLOW IN A 50MPH+ ROAD, THE ACCELERATOR STUCK IN THE CADILLAC. THIS FORCED A DEFENSIV
TL* THE CONTACT OWNS A 2012 CADILLAC CTS. WHILE DRIVING APPROXIMATELY 60 MPH, A LOUD NOISE EMITTED OUTSIDE OF THE VEHICLE. THE FRONT PASSENGER SIDE TIRE AND LOWER CONTROL ARM DETACHED COMPLETELY. IN
TL* THE CONTACT OWNS A 2012 CADILLAC CTS. WHILE DRIVING APPROXIMATELY 60 MPH, A LOUD NOISE EMITTED OUTSIDE OF THE VEHICLE. THE FRONT PASSENGER SIDE TIRE AND LOWER CONTROL ARM DETACHED COMPLETELY. IN
TL* THE CONTACT OWNS A 2012 CADILLAC CTS. WHILE DRIVING 30 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN THE BRAKES WERE APPLIED. AS A RESULT, THE CONTACT REAR ENDED THE PRECEDING VEHICLE. THE AIR B
TL* THE CONTACT OWNS A 2012 CADILLAC CTS. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO RESPOND. AS A RESULT, THE CONTACT CRASHED INTO ANOTHER
Showing the 5 most serious of 81 complaints filed with NHTSA.
