Cadillac CT4 2023 Service and Maintenance
Sustaining the highest level of performance and dependability for the 2023 Cadillac CT4 requires a committed effort toward servicing and maintenance. Maintaining the car’s essential systems operating at peak performance, entails following a regular service plan and making sure that oil changes, filter replacements, and routine inspections are done on time. A driving experience that maintains Cadillac’s stellar reputation is ensured by adhering to the manufacturer’s recommendations for service intervals and quickly taking care of any possible problems. The 2023 CT4 is still a prime example of the brand’s dedication to luxury, performance, and longevity in this area of servicing and maintenance.
2023 Cadillac CT4 Specs, Price, Features, Mileage and Review
General Information and Maintenance Schedule
Your vehicle is an important investment. This section describes the required maintenance for the vehicle. Follow this schedule to help protect against major repair expenses resulting from neglect or inadequate maintenance. It may also help to maintain the value of the vehicle if it is sold. It is the responsibility of the owner to have all required maintenance performed. Your dealer has trained technicians who can perform required maintenance using genuine replacement parts. They have up-to-date tools and equipment for fast and accurate diagnostics. Many dealers have extended evening and Saturday hours, courtesy transportation, and online scheduling to assist with service needs. Your dealer recognizes the importance of providing competitively priced maintenance and repair services. With trained technicians, the dealer is the place for routine maintenance such as oil changes and tire rotations and additional maintenance items like tires, brakes, batteries, and wiper blades. Because of the way people use vehicles, maintenance needs vary. There may need to be more frequent checks and services. The Additional Required Services – Normal are for vehicles that.
- Carry passengers and cargo within recommended limits on the Tire and
- Loading Information label.
- Are driven on reasonable road surfaces within legal driving limits.
- Use the recommended fuel.
Refer to the information in the Maintenance Schedule Additional Required Services – Severe Service. wheel alignment.
- Perform Multi-Point Vehicle Inspection.
- Lubricate body components.
- Are driven on reasonable road surfaces within legal driving limits.
- Use the recommended
Normal
Refer to the information in the Maintenance Schedule Additional Required Services – Normal Service.
Warning
Performing maintenance work can be dangerous and can cause serious injury. Perform maintenance work only if the required information, proper tools, and equipment are available. If they are not, see your dealer to have a trained technician do the work.
Maintenance Schedule
Tire Rotation and Required Services Every 12 000 km (7,500 mi) Tires are rotated to achieve a more uniform wear for all tires. The first rotation is the most important. Anytime unusual wear is noticed, rotate the tires as soon as possible, check for proper tire inflation pressure, and check for damaged tires or wheels. If the unusual wear continues after the rotation, check the wheel alignment.
- Perform Multi-Point Vehicle Inspection.
- Lubricate body components.
Additional Required Services — Normal Service
Every 12 000 km (7,500 mi)
- Check the engine oil level and oil life percentage. If needed, change engine the oil, and filter, and reset oil to the life system. Or when the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1,000 km/600 mi. If driven under the best conditions, the engine oil life system may not indicate the need for vehicle service for up to a year. The engine oil and filter must be changed at least once a year and the oil life system must be reset. Your trained dealer technician can perform this work. If the engine oil life system is reset accidentally, service the vehicle within 5 000 km/3,000 mi since the last service.
Reset the oil life system when the oil is changed.
- When the REPLACE AT NEXT OIL CHANGE message displays, the engine air filter should be replaced at the next engine oil change. When the REPLACE ENGINE AIR FILTER SOON message displays, the engine air filter should be replaced at the earliest convenience. Reset the engine air filter life system after the engine air filter is replaced.
- Replace the passenger compartment air filter. Or every 24 months, whichever comes first. More frequent passenger compartment air filter replacement may be needed if driving in areas with heavy traffic, poor air quality, high dust levels, or environmental allergens. Passenger compartment air filter replacement may also be needed if there is reduced airflow, window fogging, or odors. Your GM dealer can help determine when to replace the filter. Every 96 000 km (60,000 mi)
- Replace spark plugs. (2.0L L4 Engine Only.) Inspect spark plug wires and/or boots.
Every 156 000 km (97,500 mi)
- Replace spark plugs. (3.6L V6 Engine Only.) Inspect spark plug wires and/or boots. Every 161 000 km (100,000 mi)
- Replace hood and/or body lift support gas struts. Or every 10 years, whichever comes first. Every 240 000 km (150,000 mi)
- Change rear axle fluid, if equipped with AWD. Do not directly power wash the transfer case and/or front/rear axle output seals. High-pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated fluid will decrease the life of the transfer case and/ or axles and should be replaced.
- Drain and fill the engine cooling system. Or every six years, whichever comes first.
Frequent Maintenance*
- Public service, military, or commercial use vehicles to include the following:
- Ambulances, police cars, and emergency rescue vehicles.
- Civilian vehicles such as light duty pick-up trucks, SUVs, and passenger cars that are used in military applications.
- Recovery vehicles such as tow trucks and flatbed single vehicle carriers or any vehicle that is consistently used in towing trailers or other loads.
- High use commercial vehicles such as courier delivery vehicles, private security patrol vehicles, or any vehicles that operate on a 24–hour basis.
- Any vehicle consistently operated in a high sand or dust environment such as those used on oil pipelines and similar applications.
- Vehicles that are regularly used for short trips of 6 km (4 mi) or less.
The oil life indicator will show you when to change the oil and filter. Under severe conditions the indicator may come on before 12 000 km (7,500 mi).
* Footnote: Under extreme driving conditions listed above, it may be necessary to replace your spark plugs at more frequent intervals. For further assistance in determining the most suitable service maintenance intervals for your vehicle, please contact your authorized GM Dealer.
Extreme service is for vehicles mainly driven off-road in four-wheel drive or used in farming, mining, forestry, or snow plowing.
Additional Required Services — Severe Service
Every 72 000 km (45,000 mi)
- Change automatic transmission
Every 120 000 km (75,000 mi)
- Change rear axle fluid, if equipped with AWD. Do not directly power wash the transfer case and/or front/rear axle output seals. High pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated fluid will decrease the life of the transfer case and/ or axles and should be replaced.
Owner Checks and Services
Every Five Years
- Replace brake
Every Seven Years
- Replace Air Conditioning Desiccant and perform air conditioning system maintenance every seven years. This service requires replacement of the desiccant to help the longevity and efficient operation of the air conditioning This service can be complex. See your dealer.
Multi-Point Vehicle Inspection (MPVI)
A Multi-Point Vehicle Inspection (MPVI) completed by a GM dealer technician is a maintenance assessment of your vehicle. The benefit of the MPVI is to identify and inform the customer of service items that require immediate attention and those that may require attention in the future.
The technician will perform the following checks on your vehicle. For a complete list of checks, inspections, and services, see your dealer.
Some items may not apply to your vehicle and/or region.
Diagnostics
- OnStar active, if equipped
- Service history/recall check
Engine Oil and Filter
- Engine oil
- Oil life monitor
- Reset oil life monitor
Exterior Lights
- Visual inspection
Windshield and Wipers
- Visual inspection
Battery
- Battery visual inspection
- Battery test results
- Battery cables and connections
Systems, Fluids, and Visible Leak Inspection
- Engine oil
- Transmission
- Drive axle
- Transfer case
- Engine cooling system
- Power steering, if equipped
- Fuel system
- Windshield washer fluid
Tire Inspection
- Tire pressure, tread depth, and wear
- Rotation, if applicable
- Alignment check, optional
- Reset tire pressure monitor
- Check tire sealant expiration date, if equipped
- Check spare tire, if equipped
Brakes
- Check brake system
Visible and Functional Inspections
- Seat belt components
- Exhaust system
- Accelerator pedal
- Passenger compartment air filter, if equipped
- Engine air filter
- Hoses
- Belts
- Shocks and struts
- Steering components
- Axle boots or driveshaft and u-joints
- Compartment lift struts, if equipped
- Floor mats secured, no interference with pedals
- Horn
- Ignition lock, if equipped
- Starter switch
- Evaporative control system
Lubricate
- Chassis components
Special Application Services
- Severe Commercial Use Vehicles Only: Lubricate chassis components with every oil
Multi-Point Vehicle Inspection (MPVI)
A Multi Point Vehicle Inspection (MPVI) completed by a GM dealer technician is a maintenance assessment of your vehicle. The benefit of the MPVI is to identify and inform the customer of service items that require immediate attention and those that may require attention in the future. The technician will perform the following checks on your vehicle. For a complete list of checks, inspections, and services, see your dealer. Some items may not apply to your vehicle and/or region.
Diagnostics
- OnStar active, if equipped
- Service history/recall check
Engine Oil and Filter
- Engine oil
- Oil life monitor
- Reset oil life monitor
Exterior Lights
- Visual inspection
Windshield and Wipers
- Visual inspection
Battery
- Battery visual inspection
- Battery test results
- Battery cables and connections
Systems, Fluids, and Visible Leak Inspection
- Engine oil
- Transmission
- Drive axle
- Transfer case
- Engine cooling system
- Power steering, if equipped
- Fuel system
- Windshield washer fluid
Tire Inspection
- Tire pressure, tread depth, and wear
- Rotation, if applicable
- Alignment check, optional
- Reset tire pressure monitor
- Check tire sealant expiration date, if equipped
- Check spare tire, if equipped
Brakes
- Check brake system
Visible and Functional Inspections
- Seat belt components
- Exhaust system
- Accelerator pedal
- Passenger compartment air filter, if equipped
- Engine air filter
- Hoses
- Belts
- Shocks and struts
- Steering components
- Axle boots or driveshaft and u-joints
- Compartment lift struts, if equipped
- Floor mats secured, no interference with pedals
- Horn
- Ignition lock, if equipped
- Starter switch
- Evaporative control system
Lubricate
- Chassis components
Special Application Services
- Severe Commercial Use Vehicles Only: Lubricate chassis components every oil
“Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.
| Usage | Fluid/Lubricant |
| Automatic Transmission | DEXRON-VI Automatic Transmission Fluid. |
| Engine Coolant | 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. |
| Engine Oil | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. |
| Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl | Lubriplate Lubricant Aerosol or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. |
| Hydraulic Brake System | DOT 4 Hydraulic Brake Fluid. |
| Key Lock Cylinders, Hood and Door Hinges | Multi-Purpose Lubricant, Superlube. See your dealer. |
| Windshield Washer | Automotive windshield washer fluid that meets regional freeze protection requirements. |
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification, can be obtained from your dealer.
| Part | GM Part Number | AC Delco Part Number |
| Engine Air Cleaner/Filter | ||
|
2.0L L4 Engine |
23321606 | A3212C |
|
3.6L V6 Engine |
23321606 | A3212C |
| Engine Oil Filter | ||
|
2.0L L4 Engine |
55495105 | PF66 |
|
3.6L V6 Engine |
12693541 | UPF63R |
| Passenger Compartment Air Filter | 13508023 | CF185 |
| Spark Plugs | ||
|
2.0L L4 Engine |
55504354 | 41-103-IP |
|
3.6L V6 Engine |
12646780 | 41-130 |
Maintenance Records
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the type of services performed in the boxes provided. Retain all maintenance receipts.
| Date | Odometer Reading | Serviced By | Services Performed |
FAQ
How often should I service my 2023 CT4?
The service interval for your CT4 can vary based on factors like mileage and driving conditions. Refer to the owner’s manual for specific guidelines.
What is involved in a typical CT4 service appointment?
A typical service appointment may include oil changes, filter replacements, inspections, and addressing any identified maintenance needs.
Can I service my CT4 at any Cadillac dealership or service center?
You can typically service your CT4 at any authorized Cadillac dealership or service center for certified maintenance and repairs.
Is there a recommended oil type and viscosity for the CT4?
The recommended oil type and viscosity can vary based on the CT4’s engine. Consult the owner’s manual for the correct specifications.
Do I need to use premium gasoline in the CT4, or can I use regular unleaded fuel?
The CT4 often recommends premium gasoline for optimal performance. However, it can run on regular unleaded fuel with reduced performance.
Are there guidelines for maintaining the CT4’s tires, including rotation and alignment?
The owner’s manual typically includes recommendations for tire maintenance, including rotation and alignment.
What should I do if I notice any warning lights or alerts on the CT4’s dashboard?
If warning lights or alerts appear, consult the owner’s manual for guidance on the issue and consider scheduling a service appointment.
Can I perform basic maintenance tasks on my CT4, such as changing the air filter or wiper blades?
Some basic maintenance tasks can be performed by owners, but consult the owner’s manual for specific instructions and consider your skill level.
Are there warranties for service and maintenance on the CT4?
The CT4 often comes with a manufacturer’s warranty that covers certain maintenance and repairs. Review the warranty details for specific coverage.
How can I schedule a service appointment for my CT4?
You can typically schedule a service appointment by contacting a Cadillac dealership or service center either by phone or online through their website.
Is there a recommended service checklist or maintenance schedule for the CT4?
The owner’s manual often includes a recommended service checklist and maintenance schedule to help you stay on top of routine tasks.
What should I do if I miss a scheduled service appointment for my CT4?
If you miss a scheduled service appointment, try to reschedule as soon as possible to ensure the vehicle remains in good condition.
Are there special considerations for winter maintenance of the CT4, such as winter tires and antifreeze?
Depending on your climate, you may need winter tires and the correct antifreeze mixture for cold weather. Consult the owner’s manual for guidance.
Is there a recommended service interval for the CT4’s transmission fluid and brake fluid?
Transmission fluid and brake fluid service intervals can vary. Consult the owner’s manual for specific recommendations.
Can I use aftermarket parts and accessories for service and maintenance on the CT4?
While aftermarket parts and accessories are available, it’s often recommended to use genuine Cadillac parts for optimal performance and reliability.
Useful Link
View Full User Guide: Cadillac CT4 2023 User Guide
Download Manuals: https://www.cadillac.com/support/vehicle/manuals-guides
2023 Cadillac CT4 Specs, Price, Features, Mileage and Review