8-Speed Transmission)
DEXRON AW-1 Automatic Transmission Fluid (GM Part No. 19256039, in Canada 19256040).
Applies to: 8-Speed Transmission)
Owner’s manual specs
2020 Buick Regal Specs: Oil Capacity, Fluids, Maintenance Schedule & Fuse Box
Figures for the 2020 Buick Regal, 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: 2.0L 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 Cooling System 0 243.
Applies to: Engine Coolant
Engine Cooling System*
7.6 qt
7.2 L
Applies to: 3.6LV6 Engine
Engine Oil
Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil 0 238.
Applies to: Engine Oil
2.0L L4
Engine Cooling System*
5.3 qt
5 L
Applies to: 2.0L L4 Engine
Engine Oil with Filter
5 qt
4.7 L
Applies to: 2.0L L4 Engine (FWD) · with filter
Engine Oil with Filter
6 qt
5.7 L
Applies to: 2.0L L4 Engine (AWD) · with filter
3.6L V6
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) 0 128. When remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display.
- 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%.
- Pull out the filter.
- Inspect or replace the engine air cleaner/filter.
You’ll know it worked: The system is reset when the CHANGE ENGINE OIL SOON message is off.
Use of the incorrect automatic transmission fluid may damage the vehicle, and the damage may (Continued) 242 Vehicle Care Caution (Continued) not be covered by the vehicle warranty.
Fuse box locations & fuse chart
Engine Compartment Fuse Block
What each fuse protects
| Fuse | Amps | Protects | Source |
|---|---|---|---|
| 3 | — | ABS pump | p.260 |
| 7 | — | Fog lamp | p.260 |
| 8 | — | Memory control module | p.260 |
| 9 | — | Heated windshield | p.260 |
| 10 | — | Seat lumbar | p.260 |
| 11 | — | DC DC converter 1 | p.260 |
| 12 | — | Rear window defogger | p.261 |
| 13 | — | Heated mirrors | p.261 |
| 16 | — | Front wipers | p.261 |
| 17 | — | Passenger power seat | p.261 |
| 18 | — | Sunshade | p.261 |
| 19 | — | Driver power seat | p.261 |
| 20 | — | Rear window defogger | p.262 |
| 21 | — | Sunroof | p.261 |
| 22 | — | Rear wiper | p.261 |
| 23 | — | Auto headlamp leveling | p.261 |
| 25 | — | Front wiper control | p.262 |
| 26 | — | Transmission control module/Ignition | p.261 |
| 27 | — | Instrument panel/ Ignition | p.261 |
| 30 | — | Malfunction indicator lamp/Shift solenoid | p.261 |
| 31 | — | Run/Crank | p.262 |
| 32 | — | Canister vent/Video processing module | p.261 |
| 33 | — | Front heated seats | p.261 |
| 34 | — | Rear heated seats | p.261 |
| 35 | — | All wheel drive damping control | p.261 |
| 36 | — | Fuel module | p.261 |
| 40 | — | Steering column lock | p.261 |
| 43 | — | Heated steering wheel | p.261 |
| 44 | — | Headlamp leveling | p.261 |
| 46 | — | Engine control module/Ignition | p.261 |
| 49 | — | RDCM | p.261 |
| 56 | — | Starter | p.261 |
| 59 | — | Left LED lamps | p.261 |
| 60 | — | Cooling fan | p.261 |
| 64 | — | Starter motor | p.262 |
| 65 | — | A/C HEV | p.261 |
| 66 | — | Powertrain | p.262 |
| 69 | — | Right LED lamp/ Right high-beam headlamps | p.262 |
| 70 | — | Left high-beam headlamps | p.262 |
| 71 | — | Right LED high beam | p.262 |
| 72 | — | Starter pinion | p.262 |
| 73 | — | AC clutch | p.262 |
| 75 | — | Engine control module | p.262 |
| 76 | — | Powertrain - off engine | p.262 |
| 78 | — | Horn | p.262 |
| 79 | — | Washer pump | p.262 |
| 80 | — | Starter pinion | p.262 |
| 81 | — | Transmission control module/Engine control module | p.262 |
| 83 | — | Ignition coils | p.262 |
| 84 | — | Coil | p.262 |
| 87 | — | SAI fuel heater | p.262 |
| 88 | — | Aeroshutter | p.262 |
| 90 | — | Water change air coolant pump | p.262 |
| 92 | — | TPIM motor generator/TPIM | p.262 |
| 93 | — | Keyless entry control module | p.262 |
| 95 | — | Water change air coolant pump | p.262 |
| 96 | — | Fuel heater | p.262 |
| 98 | — | Fuel heater | p.262 |
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.
press in on the sides of the cover and pull to release it from the instrument panel.