Automatic Transmission
DEXRON-VI Automatic Transmission Fluid.
Applies to: Automatic Transmission
Owner’s manual specs
2018 Cadillac XTS Specs: Oil Capacity, Fluids, Maintenance Schedule & Fuse Box
Figures for the 2018 Cadillac XTS, copied from Cadillac’s own owner’s manual. Every one links to the manual page it came from.
From the manufacturer’s manuals. Every figure here is copied from the manufacturer's own manual, with a link to the page it came from. Where a manual is unclear or contradicts itself, we leave the figure out.
Fluids & capacities
All engines
Engine Coolant
50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System 0 245.
Applies to: Engine Coolant
Engine Oil
Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 is recommended. See Engine Oil 0 240.
Applies to: Engine Oil
3.6L
Engine Cooling System
10.4 qt
9.8 L
Applies to: 3.6L (LF3)
Engine Cooling System
7.5 qt
7.1 L
Applies to: 3.6L (LFX)
Engine Oil with Filter
6 qt
5.7 L
Applies to: 3.6L (LFX) · with filter
Engine Oil with Filter
7 qt
6.6 L
Applies to: 3.6L (LF3) · with filter
Maintenance schedule
Normal service schedule
Use this for ordinary driving.
| Service | When |
|---|---|
| Replace engine air cleaner filter. (3) | Every 45,000 mi(72,000 km) |
| Replace passenger compartment air filter. (1) | Every 22,500 mi(36,000 km) |
| Replace spark plugs. Inspect ignition coils. (3.6L LF3 twin turbo V6 engine) | Every 60,000 mi(96,000 km) |
| Replace spark plugs. Inspect ignition coils. (3.6L LFX V6 engine) | 97,500 mi |
| Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed. | Every 7,500 mi(12,000 km) |
Severe service schedule
Use this if you tow, idle a lot, drive short trips in the cold, or run in dust.
| Service | When |
|---|---|
| Replace engine air cleaner filter. (3) | Every 45,000 mi(72,000 km) |
| Replace passenger compartment air filter. (1) | Every 22,500 mi(36,000 km) |
| Replace spark plugs. Inspect ignition coils. (3.6L LF3 twin turbo V6 engine) | Every 60,000 mi(96,000 km) |
| Replace spark plugs. Inspect ignition coils. (3.6L LFX V6 engine) | 97,500 mi |
| Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed. | Every 7,500 mi(12,000 km) |
Oil life & reset procedures
Engine oil life system reset
Before you start
- Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change.
Steps
- Using the DIC buttons, display REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC) 0 136.
- Press and hold SEL to clear the CHANGE ENGINE OIL SOON message and reset the oil life at 100%.
- Pull out the filter.
- Inspect or replace the engine air cleaner/filter.
- Reverse Steps 1-3 to reinstall the filter cover housing.
You’ll know it worked: If the CHANGE ENGINE OIL SOON message is not on, the system is reset.
Fuse box locations & fuse chart
Engine Compartment Fuse Block
What each fuse protects
| Fuse | Amps | Protects | Source |
|---|---|---|---|
| 4 | — | Wiper speed | p.263 |
| 6 | — | Front wiper | p.261 |
| 8 | — | Ignition coils - even | p.261 |
| 9 | — | Cooling fan - high speed | p.263 |
| 12 | — | Starter | p.261 |
| 18 | — | Autonet | p.261 |
| 21 | — | Rear power windows | p.261 |
| 23 | — | Variable effort steering module | p.262 |
| 24 | — | Front power windows | p.262 |
| 25 | — | Retained accessory power | p.262 |
| 26 | — | ABS pump | p.262 |
| 27 | — | Electric park brake | p.262 |
| 28 | — | Rear window defogger | p.262 |
| 29 | — | Passive entry/Passive start | p.262 |
| 30 | — | Spare | p.262 |
| 31 | — | Heated driver seat | p.262 |
| 32 | — | Stop lamps - center high mounted stop lamp/Backup-reverse lamps/Interior | p.262 |
| 33 | — | Heated passenger seat | p.262 |
| 34 | — | ABS valves | p.262 |
| 35 | — | Amplifier | p.262 |
| 37 | — | Right high-beam headlamp | p.262 |
| 38 | — | Left high-beam headlamp | p.262 |
| 39 | — | Tail park lamp - passenger side | p.262 |
| 40 | — | Long range radar | p.262 |
| 41 | — | Brake vacuum assist pump | p.262 |
| 42 | — | Cooling fan high speed | p.262 |
| 45 | — | Cooling fan low speed | p.262 |
| 46 | — | Cooling fan control | p.262 |
| 47 | — | Pre-catalytic converter O2 sensor heater/Canister purge solenoid | p.262 |
| 48 | — | Low temperature radiator coolant pump | p.262 |
| 50 | — | Left headlamp LED | p.262 |
| 51 | — | Horn | p.262 |
| 52 | — | Display/Ignition | p.262 |
| 53 | — | Air quality sensor/ Inside rearview mirror/Rear vision camera | p.262 |
| 54 | — | HVAC/Reflective LED alert display | p.262 |
| 55 | — | Driver and passenger door switches/Outside rearview mirror switch/Mirror memory module | p.262 |
| 56 | — | Windshield washer | p.262 |
| 60 | — | Heated outside rearview mirror | p.262 |
| 64 | — | Spare | p.263 |
| 65 | — | Spare | p.263 |
| 66 | — | Trunk release | p.263 |
| 67 | — | Chassis control module | p.263 |
| 69 | — | Battery voltage sensor | p.263 |
| 70 | — | Canister vent solenoid | p.263 |
| 71 | — | Memory seat module | p.263 |
| 72 | — | Electric power steering | p.263 |
Instrument Panel Fuse Block
Where to find it
Instrument Panel Fuse Block The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.
open the fuse panel door by pulling down at the top.
What each fuse protects
| Fuse | Amps | Protects | Source |
|---|---|---|---|
| 1 | — | Wireless charger module/USB charge | p.264 |
| 2 | — | Body control module 7 | p.264 |
| 3 | — | Body control module 5 | p.264 |
| 4 | — | Radio | p.264 |
| 6 | — | Power outlet 1 | p.264 |
| 7 | — | Power outlet 2 | p.264 |
| 8 | — | Body control module 1 | p.264 |
| 9 | — | Body control module 4 | p.264 |
| 10 | — | Body control module 8 | p.264 |
| 11 | — | Front HVAC blower | p.264 |
| 12 | — | Passenger seat | p.264 |
| 13 | — | Driver seat | p.264 |
| 14 | — | Diagnostic link connector | p.264 |
| 15 | — | Airbag AOS | p.264 |
| 16 | — | Glove box | p.264 |
| 17 | — | HVAC controller | p.264 |
| 18 | — | Logistics | p.264 |
| 19 | — | Front camera | p.264 |
| 20 | — | Telematics (OnStar) | p.264 |
| 22 | — | Steering wheel controls/Backlight | p.264 |
| 23 | — | Body control module 3 | p.264 |
| 24 | — | Body control module 2 | p.264 |
| 25 | — | Power steering column | p.264 |
| 26 | — | AC DC inverter | p.264 |
Rear Compartment Fuse Block
Where to find it
Rear Compartment Fuse Block The rear compartment fuse block is on the left side of the trunk behind a cover.
More fuse pages in the manual
Diagrams and printed legends we can’t host. Check the box name printed on a diagram before counting positions.