Automatic Transmission
DEXRON®-VI Automatic Transmission Fluid.
Applies to: Automatic Transmission
Owner’s manual specs
2015 Buick LaCrosse Specs: Oil Capacity, Fluids, Maintenance Schedule & Fuse Box
Figures for the 2015 Buick LaCrosse, copied from Buick’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.
Engines in this manual: 2.4L L4, 3.6L V6. Figures that differ by engine say which engine they are for.
Fluids & capacities
All engines
Engine Coolant
50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant. See Engine Coolant on page 10-19.
Applies to: Engine Coolant
Engine Oil
Use only engine oil meeting the dexos1™specification of the proper SAE viscosity grade. Look for the dexos1 approved logo for GM approved engine oil. See Engine Oil on page 10-11.
Applies to: Engine Oil
2.4L L4
Engine Cooling System
10.1 qt
9.6 L
Applies to: 2.4L L4 Engine
Engine Oil with Filter
5 qt
4.7 L
Applies to: 2.4L L4 Engine · with filter
3.6L V6
Engine Cooling System
9.9 qt
9.4 L
Applies to: 3.6L V6 Engine
Engine Oil with Filter
6 qt
5.7 L
Applies to: 3.6L V6 Engine · 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) |
| 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) |
| 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 controls on the right side of the steering wheel, display REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC) on page 5-28. When remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. See Engine Oil Messages on page 5-38.
- Press V on the DIC controls and hold down for a few seconds to clear the CHANGE ENGINE OIL SOON message and reset the oil life at 100%.
You’ll know it worked: The system is reset when the CHANGE ENGINE OIL SOON message is off.
Fuse box locations & fuse chart
Engine Compartment Fuse Block
Diagrams in the manual
What each fuse protects
| Fuse | Amps | Protects | Source |
|---|---|---|---|
| 3 | — | Air Conditioning Compressor Clutch | p.10-37 |
| 4 | — | Wiper Speed | p.10-39 |
| 8 | — | Ignition Coils - Even (Six Cylinder Engine), Ignition Coils - All (Four Cylinder Engine) | p.10-37 |
| 11 | — | Six Cylinder Engine: Post Catalytic Converter Oxygen Sensor Heater, Mass Air Flow Sensor, FlexFuel Sensor, Secondary Air Induction Solenoid | p.10-37 |
| 17 | — | Not Used | p.10-38 |
| 18 | — | Sunshade Module, Vehicle Air Purification System, Ventilated Seats | p.10-38 |
| 20 | — | Heated Steering Wheel (non eAssist) | p.10-38 |
| 21 | — | Rear Power Windows | p.10-36 |
| 22 | — | Sunroof | p.10-36 |
| 23 | — | Variable Effort Steering (if equipped) or eAssist Power Inverter Module | p.10-38 |
| 25 | — | Rear Heated Seats | p.10-37 |
| 26 | — | Antilock Brake System Pump | p.10-37 |
| 27 | — | Electric Parking Brake | p.10-37 |
| 28 | — | Rear Window Defogger | p.10-37 |
| 29 | — | Heated Seat, Left/ Power Lumbar | p.10-38 |
| 30 | — | Heated Seat, Right/ Power Pack Cooling Fan (eAssist) | p.10-38 |
| 31 | — | All-Wheel Drive, Electronic Suspension Control | p.10-38 |
| 32 | — | Body Control Module 6 | p.10-38 |
| 33 | — | Memory Seat - Front | p.10-38 |
| 34 | — | Antilock Brake System Valves | p.10-38 |
| 35 | — | Amplifier | p.10-38 |
| 37 | — | Right High Beam | p.10-38 |
| 38 | — | Left High Beam | p.10-38 |
| 41 | — | Brake Vacuum Pump | p.10-37 |
| 42 | — | Cooling Fan K2 | p.10-37 |
| 43 | — | Not Used | p.10-37 |
| 44 | — | Transmission Auxiliary Oil Pump (eAssist) | p.10-37 |
| 45 | — | Cooling Fan K1 | p.10-37 |
| 46 | — | Cooling Fan Relay | p.10-38 |
| 47 | — | Six Cylinder Engine: Pre Catalytic Converter Oxygen Sensor Heater, Canister Purge Solenoid. Four Cylinder Engine: Pre and Post Catalytic Converter Oxygen Sensor Heaters, Canister Purge Solenoid | p.10-38 |
| 48 | — | Fog Lamps | p.10-38 |
| 49 | — | Right High Intensity Discharge Headlamp | p.10-38 |
| 52 | — | Cluster Run/Crank | p.10-39 |
| 53 | — | Run/Crank for Inside Rearview Mirror, Rear Vision Camera, Air Quality Sensor, Aero Shutter Motor | p.10-39 |
| 54 | — | Run/Crank for: Heating, Ventilation and Air Conditioning, Headlamp Switch | p.10-39 |
| 55 | — | Outside Rearview Mirror, Universal Remote System, Front Window Switches | p.10-39 |
| 56 | — | Windshield Washer | p.10-39 |
| 59 | — | AIR Pump | p.10-37 |
| 60 | — | Heated Mirror | p.10-39 |
| 62 | — | Canister Vent | p.10-39 |
| 66 | — | AIR Solenoid (eAssist) | p.10-39 |
| 67 | — | Fuel Pump Power Module/Chassis Control Module | p.10-39 |
| 69 | — | Regulated Voltage Control Sensor | p.10-39 |
| 70 | — | Parking Assist/Side Blind Zone | p.10-39 |
| 71 | — | Passive Entry/ Passive Start | p.10-39 |
Instrument Panel Fuse Block
Where to find it
Instrument Panel Fuse Block The instrument panel fuse block is located in the instrument panel, on the driver side of the vehicle.
open the fuse panel door by pulling down at the top.
Diagrams in the manual
What each fuse protects
| Fuse | Amps | Protects | Source |
|---|---|---|---|
| 1 | — | APO 3 | p.10-40 |
| 2 | — | Body Control Module 7 | p.10-40 |
| 3 | — | Steering Wheel Controls Backlight | p.10-40 |
| 4 | — | Radio/Human Machine Interface/ Rear Auxiliary Audio Jack/Front Auxiliary Audio Video Jack/ Touchpad/Remote Media Player/ Blu-ray Remote Media Player | p.10-40 |
| 5 | — | OnStar/Universal Hands-Free Phone | p.10-40 |
| 6 | — | Power Outlet 1 | p.10-40 |
| 7 | — | Power Outlet 2 | p.10-40 |
| 9 | — | Body Control Module 4 | p.10-41 |
| 10 | — | Body Control Module 8 (J-Case Fuse) | p.10-41 |
| 11 | — | Front Heater Ventilation Air Conditioning/Blower (J-Case Fuse) | p.10-41 |
| 12 | — | Passenger Seat (Circuit Breaker) | p.10-41 |
| 13 | — | Driver Seat (Circuit Breaker) | p.10-41 |
| 14 | — | Diagnostic Link Connector | p.10-41 |
| 15 | — | Airbag/Automatic Occupant Sensing | p.10-41 |
| 16 | — | Trunk | p.10-41 |
| 18 | — | Pre-Fuse for Fuses 4 and 5 | p.10-41 |
| 19 | — | Center Stack Displays, Head-Up Display, Right Steering Wheel Control Switch, Rear Seat Infotainment Display (eAssist), HVAC Center Stack Displays | p.10-41 |
| 20 | — | Rear Seat Entertainment Display/Rear Seat Audio | p.10-41 |
| 21 | — | Instrument Cluster | p.10-41 |
| 22 | — | Discrete Logic Ignition Switch | p.10-41 |
| 23 | — | Body Control Module 3 | p.10-41 |
| 25 | — | Rear Heater Ventilation Air Conditioning/Blower | p.10-41 |
| 26 | — | AC/DC Inverter | p.10-41 |
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.