2018 VOLVO XC90 T8 overheating

10
STARTING AND DRIVING
Starting the vehicle424
Switching off the vehicle 426
Ignition modes 427
Selecting ignition mode 428
Brake functions 429
Brakes 429
Brake Assist System 431
Braking on wet roads 431
Braking on salted roads 431
Maintenance of the brake system 432
Parking brake 432
Activating and deactivating the park- ing brake 433
Settings for automatically activatingthe parking brake 434
Parking on a hill 434
Parking brake malfunction 435
Auto-hold brakes 436
Activating and deactivating Auto-hold at a standstill 436
Hill Start Assist 437
Braking assist after a collision 437
Transmission 438
Gear selector positions for automatictransmissions 439

Using the steering wheel paddles
* to
shift 441
Shiftlock 442
The kickdown function 442
Gear indicator *
442
All Wheel Drive (AWD) 443
Drive systems 443
Starting and stopping the combus- tion engine in Twin Engine vehicles 444
Drive modes 445
Changing drive mode 449
Leveling control * and suspension
450
Leveling control settings *
453
Low Speed Control 453
Activating and deactivating LowSpeed Control using the function button 454
Hill Descent Control 454
Activating and deactivating HillDescent Control using the functionbutton 455
Economical driving 456
Using the electric motor only 457
Factors affecting electric motor range 458
"Hold" and "Charge" functions 459
Preparing for a long trip 460
Winter driving 461

Driving through standing water462
Opening/closing the fuel filler door 462
Refueling 463
Fuel 464
Octane rating 465
Emission controls 467
Overheating of engine and transmission 468
Battery drain 469
Jump starting using another battery 469
Detachable towbar *
471
Driving with a trailer 472
Trailer Stability Assist *
474
Checking trailer lights 475
Towing using a towline 476
Attaching and removing the towing eyelet 476
Recovery 477
HomeLink ®
* 478
Programming HomeLink ®
* 479
Using HomeLink 480
Type approval for HomeLink ®
* 481
Compass 481
Activating and deactivating the compass 482
Calibrating the compass 482

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DRIVER SUPPORT
* Option/accessory.
324
The driver is responsible for ensuring that the vehicle maintains a suitable distancefrom such obstacles.
• The camera and radar sensors do nothave the capacity to detect all oncomingobjects and obstacles in traffic environ-ments, e.g. potholes, stationary obstaclesor objects that completely or partiallyblock the route.
• Pilot Assist does not "see" pedestrians,animals, etc.
• The recommended steering input is lim-ited in force, which means that it cannotalways help the driver to steer and keepthe vehicle within the lane.
• Pilot Assist is switched off if the powersteering is working with reduced power -e.g. during cooling due to overheating(see section "Speed-dependent steeringforce").
The driver can always correct or adjust steeringassistance provided by Pilot Assist by turning thesteering wheel to the desired position.
Steep roads and/or heavy loadsPilot Assist is primarily intended to be driven onflat roads. The function may not be able to main-tain the correct time interval to the vehicle aheadwhen driving down steep hills. The driver should be extra attentive and prepared to apply thebrakes.
• Do not use Pilot Assist if the vehicle is carry-ing a heavy load or towing a trailer.
NOTE
Pilot Assist cannot be activated if a trailer, bike carrier or similar is connected to thevehicle electrical system.
Other limitations
•
The Off Road drive mode cannot be
selected when Pilot Assist is activated.
NOTE
The function uses the vehicle's camera unit, which has some general limitations – see thesection "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit, which has some general limitations – see thesection "Radar unit limitations".
Related information
• Pilot Assist (p. 311)
• Speed-dependent steering wheel resistance (p. 272)
Pilot Assist
* symbols and messages
A number of symbols and messages relating to Pilot Assist may be displayed in the instrument panel and/or the head-up display *.

HYBRID INFORMATION
}}
407
Charging the hybrid battery In addition to the conventional fuel tank, your vehicle is also equipped with a rechargeablelithium-ion hybrid battery.
The hybrid battery can be recharged using the charging cable stored in a storage space in thecargo compartment.
WARNING
The hybrid electrical system in your vehicle uses high voltage electrical current. Any dam-age to this system or to the hybrid batterymay result in the danger of overheating, fire,or serious injury. If the vehicle is involved in acollision or subjected to flooding, fire, etc.,have it inspected by a trained and qualifiedVolvo service technician. Prior to this inspec-tion, the vehicle should be parked outdoors ata safe distance from any building or poten-tially flammable materials.
The hybrid battery's charging time depends on the charging current used.
NOTE
The capacity of the hybrid battery diminishes somewhat with age and use, which couldresult in increased use of the gasoline engineand consequently, slightly higher fuel con-sumption.
WARNING
If the hybrid battery needs to be replaced, this may only be done by Volvo retailer or author-ized Volvo workshop.
Charging cable handle and charging socket.
Charging status is indicated in three ways: • The indicator lights in the charging module (the unit connected to the wall outlet).
• Indicator light in the vehicle's chargingsocket.
• Images and text in the instrument panel.
The hybrid battery's charging process alsocharges the vehicle's start battery. If the hybrid battery's temperature is below -10 ºC (14 ºF) or above 40 ºC (104 ºF), some of
the vehicle's functions may be reduced or not available at all. The electric motor cannot be used if the battery'stemperature is too low or too high. If the PUREdrive mode is selected, the gasoline engine willstart.
Charging using the gasoline engine
The vehicle generates electrical current to charge the battery, e.g. when the driver lightly presses the brakepedal or when engine braking is used on downgrades.
The vehicle can also generate current to the hybrid battery to charge it.
• The hybrid battery can also be recharged bylightly depressing the brake pedal, i.e. duringlight braking. This converts the vehicle'skinetic energy to electrical energy, which isused to charge the hybrid battery.
• In gear position
B, the electric motor brakes
the vehicle when the accelerator pedal is

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HYBRID INFORMATION
410
CAUTION
Wipe the charging cable with a clean cloth lightly moistened with water or a mild deter-gent. Do not use chemicals or solvents. Donot submerge the charging cable. The charging cable and its components should not be rinsed or immersed in water.
CAUTION
Avoid exposing the charging module and its plug to direct sunlight. In such cases, theoverheating protection in the plug couldreduce or cut off charging of the hybrid bat-tery.
Charging cable components
Charge module
240 V adapter clip
240 V adapter
Charge coupler
Release button
Related information
•Charging cable residual current device (p. 410)
• Charging cable temperature monitoring(p. 411)
• Charging the hybrid battery (p. 407)
• Charging status in the charging cable'scharging module (p. 415)
Charging cable residual currentdevice The charging cable has a circuit breaker that helps protect against current overloads and ther-mal overheating.
If the charging cable's residual current device is triggered, the blue indicator light in the chargingmodule will not illuminate when the chargingcable is plugged into an electrical outlet (or thered warning light will glow steadily). Have the out-let checked by a licensed electrician or try usinganother wall outlet.
WARNING
Charging the hybrid battery may only be done from approved, grounded 120-/240 V outlets(AC, alternating current). If the electrical cir-cuit or electrical socket's capacity is notknown, let a licensed electrician inspect theelectrical circuit's capacity. Using a chargelevel that exceeds the electrical circuit's orelectrical outlet's capacity may start a fire ordamage the electrical circuit.

STARTING AND DRIVING
* Option/accessory.
424
Starting the vehicle
The vehicle can be started using the start knob in the tunnel console when the remote key is inthe passenger compartment.
Start knob in the tunnel console.
WARNING
Before starting:
• Buckle your seat belt.
• Adjust the seat, steering wheel and mir- rors.
• Make sure you can fully depress thebrake pedal. The remote key is not physically used to start theignition because the vehicle is equipped with thekeyless Passive Start system. To start the vehicle:
1. The remote key must be inside the vehicle.
For vehicles with Passive Start, the key must be in the front section of the passengercompartment. With the optional keyless lock- ing/unlocking function *, the key can be any-
where in the vehicle.
2. Press and hold down the brake pedal 1
as far
as possible.
3. Turn the start knob clockwise and release. The control will automatically return to the original position.
WARNING
• Never use more than one inlay mat at a time on the driver's floor. If any other typeof floor mat is used, remove the originalmat from the driver's seat floor beforedriving. All types of mats must be securelyanchored in the attachment points in thefloor. Make sure the floor mat does notimpede the movement of the brake pedalor accelerator pedal in any way, as thiscould be a serious safety hazard.
• Volvo's floor mats are specially manufac-tured for your vehicle. They must be prop-erly secured in the attachment points inthe floor to help ensure they cannot slideand become trapped under the pedals.
The starter motor will crank until the enginestarts or until its overheating protection is trig-gered. During normal start conditions, the vehicle's elec- tric motor will be prioritized and the gasolineengine will remain off. This means that once thestart knob is turned clockwise, the electric motorhas been "started" and the vehicle is ready to bedriven. The warning and information symbols inthe instrument panel will go out and the selectedtheme will be displayed to indicate that the elec-tric motor is activated.
1 If the vehicle is moving, it is only necessary to turn the start knob clockwise to start the engine.

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STARTING AND DRIVING
426
NOTE
With a cold start, idling speed may be consid- erably higher than normal for certain enginetypes. This is done to get the emissions sys-tem up to normal operating temperature asquickly as possible, which minimizes exhaustemissions and protects the environment.
CAUTION
•When starting in cold weather, the auto- matic transmission may shift up at slightlyhigher engine speeds than normal untilthe automatic transmission fluid reachesnormal operating temperature.
• Do not race a cold engine immediatelyafter starting. This could prevent fluidsfrom properly lubricating vital compo-nents in the engine before it has reachedthe proper operating temperature.
• The engine should be idling when thegear selector is moved. Never accelerateuntil the gear is fully engaged. Accelerat-ing rapidly before a gear is properlyengaged could lead to harder wear ofcomponents.
• To help prevent the transmission oil from overheating, select
P or N when idling at
a standstill for prolonged periods of time.
Related information
• Switching off the vehicle (p. 426)
• Ignition modes (p. 427)
• Adjusting the steering wheel (p. 199)
• Jump starting using another battery (p. 469)
• Selecting ignition mode (p. 428)
Switching off the vehicle The vehicle can be switched off using the start knob in the tunnel console.
Start knob in the tunnel console.
To switch off the vehicle:
–Turn the start knob clockwise and release to switch off the vehicle. The control will auto-matically return to the original position.
If the vehicle rolls:
–Turn clockwise and hold the knob until the vehicle switches off.
Related information
• Starting the vehicle (p. 424)
• Ignition modes (p. 427)
• Adjusting the steering wheel (p. 199)

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STARTING AND DRIVING
* Option/accessory.
438
Related information
• Rear Collision Warning (p. 347)
• BLIS
* (p. 348)
• Brake functions (p. 429)
Transmission The transmission is part of the vehicle's driveline (power transmission) between the engine andthe drive wheels. The function of the transmis-sion is to change gears depending on speedand power needs.
The vehicle has an 8-speed automatic transmis- sion and an electric motor for rear-wheel drive.The number of gears allows the engine's torqueand power band to be effectively utilized. Two ofthe gears are overdrive gears that save fuel whendriving at a constant engine speed. The steering wheel paddles
* can be used to shift up or down
manually. The instrument panel shows the gear currently in use.
CAUTION
Check the operating temperature of the transmission to help avoid damage to any ofthe drive system components. If there is a riskof overheating, a warning symbol will appearin the instrument panel and a text messagewill be displayed. Follow the recommenda-tions given.
Symbols in the instrument panelIf a problem should occur with the transmission, a symbol and a message will appear in the instru-ment panel.
SymbolMeaning
Information and messages related to the transmission. Follow the rec-ommendations provided.
Hot or overheated transmission. Follow the recommendations provi-ded.
Reduced performance/Acceler-
ation performance reduced
In the event of a temporary fault in the driveline, the vehicle may gointo a "limp home" mode withreduced power output to help avoiddamage to the driveline.
Related information
• Gear selector positions for automatic trans- missions (p. 439)
• Gear indicator
* (p. 442)

STARTING AND DRIVING
* Option/accessory.
442
Shiftlock The automatic transmission's shiftlock function helps prevent inadvertently moving the gearselector between different positions.
Automatic shiftlockThe automatic shiftlock has a separate safety system.
From Park - P
To move the gear selector from the P position,
the brake pedal must be depressed and the igni- tion in mode II.
From Neutral - N
If the gear selector is in N and the vehicle has
been stationary for at least 3 seconds (with or without the engine running), the gear selector willbe locked in that position. To move the gear selector from N to another
gear, the brake pedal must be depressed and the ignition in mode II.
Messages in the instrument panelIf the gear selector is locked in position, a mes- sage will appear in the instrument panel, e.g.
Gear lever Press brake pedal to activate
gear lever.
There is no mechanical shiftlock function.
Related information
• Gear selector positions for automatic trans- missions (p. 439)
The kickdown function
Kickdown is used when maximum acceleration is needed, e.g. when passing.
When the accelerator pedal is depressed all the way to the floor (past the normal full acceleratorposition), the transmission will automaticallyengage kickdown, i.e. immediately shift down to alower gear. If the accelerator pedal is released from the kick- down position, the transmission will automaticallyshift up again.
Safety function
The transmission control module is equipped with a downshift protection feature to help prevent theengine from overheating. In some conditions, the transmission will prevent downshifting/kickdown if this would lead to suchhigh engine speed (rpm) that the engine couldbe damaged. If the driver still attempts downshift-ing or kickdown at a high rpm, nothing will hap-pen and the original gear will remain selected. With kickdown, the vehicle can downshift one or more steps at a time depending on the enginespeed. The vehicle upshifts when the engine rea-ches its maximum rpm to prevent engine dam-age.
Related information
• Gear selector positions for automatic trans-missions (p. 439)
Gear indicator
*
The gear indicator in the instrument panel shows the gear currently being used for manual shiftingand indicates when another gear should beselected to optimize fuel economy.
For eco-friendly driving when manually shifting, it is important to use the correct gear and to shiftgears in good time. The gear indicator in the instrument panel shows the gear currently being used and indicates withan upward-facing arrow if a higher gear shouldbe selected. The gear indicator is shown in gear B .
Gear indicator in instrument panel 2
.
Related information
• Gear selector positions for automatic trans- missions (p. 439)