2019 CADILLAC CT6 technical data

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Keys, Doors, and Windows . . . . . . . . . 28
Seats and Restraints . . . . . . . . . . . . . . . 62
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Instruments and Controls . . . . . . . . 118
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Infotainment System . . . . . . . . . . . . . 174
Climate Controls . . . . . . . . . . . . . . . . . . 175
Driving and Operating . . . . . . . . . . . . 189
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 288
Service and Maintenance . . . . . . . . . 381
Technical Data . . . . . . . . . . . . . . . . . . . . 396
Customer Information . . . . . . . . . . . . 401
Reporting Safety Defects . . . . . . . . . 411
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414
Connected Services . . . . . . . . . . . . . . . 422
Index . . . . . . . . . . . . . . . . . . . . . . . . 426

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
396 TECHNICAL DATA
Technical Data
Vehicle Identification
Vehicle IdentificationNumber (VIN) . . . . . . . . . . . . . . . . . . . 396
Service Parts Identification Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396
Vehicle Data
Capacities and Specifications . . . . 397
Engine Drive Belt Routing . . . . . . . 399
Vehicle Identification
Vehicle Identification
Number (VIN)
This legal identifier is in the front
corner of the instrument panel, on the
driver side of the vehicle. It can be
seen through the windshield from
outside. The Vehicle Identification
Number (VIN) also appears on the
Vehicle Certification and Service Parts
labels and certificates of title and
registration.
Engine Identification
The eighth character in the VIN is the
engine code. This code identifies the
vehicle's engine, specifications, and
replacement parts. See “EngineSpecifications”
underCapacities and
Specifications 0397 for the vehicle's
engine code.
Service Parts Identification
Label
There may be a label on the inside of
the trunk that contains the following
information:
. Vehicle Identification
Number (VIN)
. Model designation
. Paint information
. Production options and special
equipment
If there is no label, there is a barcode
on the certification label on the
center (B) pillar to scan for this same
information.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
TECHNICAL DATA 397
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and Lubricants
0 392 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Brake Fluid 0.4 L 0.4 qt
Cooling System –Engine
2.0L L4 Engine 9.4 L 10.0 qt
2.0L L4 Engine with Rear A/C 11.0 L 11.6 qt
3.0L V6 Engine 10.6 L 11.2 qt
3.0L V6 Engine with Rear A/C 12.3 L 13.0 qt
3.0L V6 Engine Intercoolers 3.2 L 3.4 qt
3.6L V6 Engine 9.8 L 10.4 qt
3.6L V6 Engine with Rear A/C 11.4 L 12.0 qt
4.2L V8 Engine 10.9 L 11.5 qt

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
398 TECHNICAL DATA
ApplicationCapacities
Metric English
4.2L V8 Engine with Rear A/C 12.5 L 13.0 qt
4.2L V8 Engine with Intercooler 2.7 L 2.8 qt
Engine Oil with Filter 2.0L L4 Engine 5.0 L 5.3 qt
3.0L V6 Engine 5.7 L 6.0 qt
3.6L V6 Engine 5.7 L 6.0 qt
4.2L V8 Engine 8.5 L 9.0 qt
Front Axle 0.5 L 0.53 qt
Rear Axle 0.5 L 0.53 qt
Rear Axle 4.2L V8 Twin Turbo (LTA) Engine or V-Series 1.1 L 1.16 qt
Fuel Tank 72.7 L 19.2 gal
Transfer Case –AWD 0.8 L 0.85 qt
Wheel Nut Torque 150 Y110 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual.
Recheck fluid level after filling.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
TECHNICAL DATA 399
Engine Specifications
EngineVIN CodeTransmission Spark Plug Gap
2.0L L4 Engine KAutomatic0.75–0.90 mm (0.030–0.035 in)
3.0L V6 Engine 6Automatic 0.65–0.75 mm (0.26–0.030 in)
3.6L V6 Engine SAutomatic0.80–0.90 mm (0.031–0.035 in)
4.2L V8 Engine JAutomatic 0.74–0.75 mm (0.029–0.030 in)
Engine Drive Belt Routing
2.0L L4 Engine
3.0L V6 Engine3.6L V6 Engine

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
400 TECHNICAL DATA
4.2L V8 Engine