Page 345 of 586
UNDER HOOD OVERVIEW - 2.0L
341
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenanceE341608
Page 346 of 586
Engine coolant reservoir. See Checking the Coolant (page 347).A
Engine oil dipstick. See Engine Oil Dipstick Overview (page 345).B
Engine oil filler cap. See Adding Engine Oil (page 346).C
Brake fluid reservoir. See Checking the Brake Fluid (page 220).D
Battery. See Changing the 12V Battery (page 353).E
Power distribution box. See Accessing the Under Hood Fuse Box (page 323).F
Air filter. See Changing the Engine Air Filter (page 351).G
Windshield washer fluid reservoir. See Adding Washer Fluid (page 120).H
342
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenance
Page 347 of 586
UNDER HOOD OVERVIEW - 2.7L
343
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenanceE341585
Page 348 of 586
Engine coolant reservoir. See Checking the Coolant (page 347).A
Brake fluid reservoir. See Checking the Brake Fluid (page 220).B
Battery. See Changing the 12V Battery (page 353).C
Power distribution box. See Accessing the Under Hood Fuse Box (page 323).D
Air filter assembly. See Changing the Engine Air Filter (page 351).E
Engine oil dipstick. See Engine Oil Dipstick Overview (page 345).F
Engine oil filler cap. See Adding Engine Oil (page 346).G
Windshield washer fluid reservoir. See Adding Washer Fluid (page 120).H
344
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenance
Page 349 of 586

ENGINE OIL
ENGINE OIL DIPSTICK OVERVIEW -2.0L
Minimum.A
Nominal.B
Maximum.C
ENGINE OIL DIPSTICK OVERVIEW -2.7L
Minimum.A
Nominal.B
Maximum.C
CHECKING THE ENGINE OIL LEVEL
1.Make sure that your vehicle is on levelground.
2.Check the oil level before starting theengine, or switch the engine off afterwarming up and wait 10 minutes for theoil to drain into the oil pan.
3.Remove the dipstick and wipe it with aclean, lint-free cloth.
4.Reinstall the dipstick and make sure it isfully seated.
5.Remove the dipstick again to check theoil level.
Note:If the oil level is between the maximumand minimum marks, the oil level isacceptable. Do not add oil.
6.If the oil level is at the minimum mark,immediately add oil.
7.Reinstall the dipstick. Make sure it is fullyseated.
Note:The oil consumption of new enginesreaches its normal level after approximately3,000 mi (5,000 km).
345
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenanceE270482 E250320
Page 350 of 586

ADDING ENGINE OIL
WARNING: Do not remove the fillercap when the engine is running.
WARNING: Do not add engine oilwhen the engine is hot. Failure to followthis instruction could result in personalinjury.
Do not use supplemental engine oil additivesbecause they are unnecessary and couldlead to engine damage that the vehiclewarranty may not cover.
1.Clean the area surrounding the engineoil filler cap before you remove it.
2.Remove the engine oil filler cap.
3.Add engine oil that meets ourspecifications. See Capacities andSpecifications (page 404).
4.Reinstall the engine oil filler cap. Turn itclockwise until you feel a strongresistance.
Note: Do not add oil further than themaximum mark. Oil levels above themaximum mark may cause engine damage.
Note:Immediately soak up any oil spillagewith an absorbent cloth.
RESETTING THE ENGINE OIL CHANGEREMINDER
Use the information display controls on thesteering wheel to reset the oil changeindicator.
From the main menu scroll to:
Action and descriptionMessage
Press the right arrow button,then from this menu scroll tothe following message.
Settings
Press the right arrow button,then from this menu scroll tothe following message.
Vehicle
Press the right arrow button,then from this menu scroll tothe following message.
Oil Life
Action and descriptionMessage
Press and hold the OK buttonuntil the instrument clusterdisplays the followingmessage.
Hold OK toReset
Reset Successful
When the oil change indicatorresets the instrument clusterdisplays 100%.
Remaining Life
{00}%
If the instrument clusterdisplays one of the followingmessages, repeat theprocess.
Not Reset
Reset Cancelled
346
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenance
Page 351 of 586

ENGINE OIL CAPACITY ANDSPECIFICATION
For filling information, please refer to theCapacities and Specifications section of yourowner's manual. See Engine Oil Capacityand Specification (page 410).
CHECKING THE COOLANT
When the engine is cold, check theconcentration and level of the coolant at theintervals listed in the scheduled maintenanceinformation. See Scheduled Maintenance(page 463).
Note:Make sure that the coolant level isbetween the minimum and maximum markson the coolant reservoir.
Note: Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.
If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
Maintain coolant concentration within 48%to 50%, which equates to a freeze pointbetween -29°F (-34°C) and -35°F (-37°C).Coolant concentration should be checkedusing a refractometer. We do not recommendthe use of hydrometers or coolant test stripsfor measuring coolant concentration.
Adding Coolant
WARNING: Keep your hands andclothing clear of the cooling fan.
WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir cap witha thick cloth to prevent the possibility ofscalding and slowly remove the cap.Failure to follow this instruction could resultin personal injury.
WARNING: Do not add enginecoolant when the engine is on or thecooling system is hot. Failure to follow thisinstruction could result in personal injury.
WARNING: Do not add coolantfurther than the MAX mark.
WARNING: Do not put coolant in thewindshield washer reservoir. If sprayed onthe windshield, coolant could make itdifficult to see through the windshield.
WARNING: Do not allow the fluid totouch your skin or eyes. If this happens,rinse the affected areas immediately withplenty of water and contact your physician.
Note: Do not use stop leak pellets, coolingsystem sealants, or non-specified additivesas they can cause damage to the enginecooling or heating systems. Resultingcomponent damage may not be covered bythe vehicle Warranty.
Note:Automotive fluids are notinterchangeable.
347
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenance
Page 352 of 586

It is very important to use prediluted coolantapproved to the correct specification in orderto avoid plugging the small passageways inthe engine cooling system. See Capacitiesand Specifications (page 404). Do not mixdifferent colors or types of coolant in yourvehicle. Mixing of engine coolants or usingan incorrect coolant may harm the engine orcooling system components and could voidthe vehicle Warranty.
Note:If prediluted coolant is not available,use the approved concentrated coolantdiluting it to 50/50 with deionized or distilledwater. See Capacities and Specifications(page 404). Using water that has not beendeionized may contribute to depositformation, corrosion and plugging of thesmall cooling system passageways.
To top up the coolant level do the following:
1.Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
2.Add enough prediluted coolant to reachthe correct level.
Note:We do not recommend the use ofrecycled coolant.
3.Replace the coolant reservoir cap. Turnthe cap clockwise until it contacts thehard stop.
4.Check the coolant level in the coolantreservoir the next few times you driveyour vehicle. If necessary, repeat step 2.
If you have to add more than 1.1 qt (1 L) ofengine coolant per month, have your vehiclechecked as soon as possible. Operating anengine with a low level of coolant can resultin engine overheating and possible enginedamage.
In case of emergency, you can add a largeamount of water without engine coolant inorder to reach a vehicle service location.Service your vehicle as soon as possible.
Water alone, without engine coolant, cancause engine damage from corrosion,overheating or freezing.
Do not use the following as a coolantsubstitute, as they can cause engine damagefrom overheating or freezing:
•Alcohol.
•Methanol.
•Brine.
•Any coolant mixed with alcohol ormethanol antifreeze.
Do not add extra inhibitors or additives tothe coolant. These can be harmful andcompromise the corrosion protection of thecoolant.
Severe Climates
If you drive in extremely cold climates, youmay need to increase the coolantconcentration above 50%.
Note:A coolant concentration of 60%provides improved freeze point protection.Coolant concentrations above 60% decreasethe overheat protection characteristics ofthe coolant and could cause enginedamage.
If you drive in extremely hot climates, youmay need to decrease the coolantconcentration to 40%.
348
2022 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202108, First-PrintingMaintenance