transmission VOLVO S90 2017 Owner´s Manual

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356
Related information
•Towing recommendations (p. 359)
Overheating the engine and transmission
In demanding driving conditions, such as when transporting heavy loads, driving in mountainousareas or in very hot weather there is a risk ofoverheating the engine or transmission.
• The engine's output may be slightly limited if there is a risk of overheating.
• Remove e.g., auxiliary lights mounted in frontof the grille in hot weather.
• If the temperature of the engine coolantbecomes too high, the warning symbol will illuminate and the message
Engine
temperature/Stop safely will be displayed.
Stop the vehicle as soon as possible in a safe place and let the engine idle for severalminutes.
• If the message
Engine temperature/High
temperature Turn off engine or Engine
coolant/Stop safely is displayed, stop
safely and turn off the engine.
• If the transmission begins to overheat, an alternative gear shifting program will beselected. An integrated protective functionwill also by activated, the warning symbol will illuminate and the message
Transmission
warmHigh temperature Reduce speed
or Transmission warmStop safely, wait
for cooling will be displayed in the instru-
ment panel. •
The air conditioning may be switched off temporarily.
• After a prolonged period of driving, do notturn off the engine immediately after stop-ping.
• The engine cooling fan commonly continuesto run for several minutes after the enginehas been turned off.
WARNING
The cooling fan (located at the front of the engine compartment, behind the radiator) maystart or continue to operate (for up to6 minutes) after the engine has beenswitched off.
Related information
•
Driving with a trailer (p. 366)
• Before a long distance trip (p. 353)

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366
Driving with a trailer
When towing a trailer, always observe the legal requirements of the state/province.
• All Volvo models are equipped with energy- absorbing shock-mounted bumpers. Trailerhitch installation should not interfere with theproper operation of this bumper system.
Trailer towing does not normally present any par-ticular problems, but take into consideration:
• Increase tire pressure to recommended fullpressure.
• When your vehicle is new, avoid towing heavytrailers during the first 620 miles (1,000 km).
• Maximum speed when towing a trailer:50 mph (80 km/h).
• Engine and transmission are subject toincreased loads. Therefore, engine coolanttemperature should be closely watched whendriving in hot climates or hilly terrain. Use alower gear and turn off the air conditioner ifthe temperature gauge needle enters the redrange.
• If the automatic transmission begins to over-heat, a message will be displayed in the textwindow.
• Avoid overload and other abusive operation.
• Hauling a trailer affects handling, durability,and economy. •
It is necessary to balance trailer brakes withthe towing vehicle brakes to provide a safestop (check and observe state/local regula-tions).
• Do not connect the trailer's brake systemdirectly to the vehicle's brake system.
• More frequent vehicle maintenance isrequired.
• Remove the ball holder when the hitch is notbeing used.
NOTE
•
When parking the vehicle with a trailer on a hill, apply the parking brake before put- ting the gear selector in
P. Always follow
the trailer manufacturer's recommenda- tions for wheel chocking.
• When starting on a hill, put the gear selector in
D before releasing the parking
brake.
• If you use the manual (Geartronic) shift positions while towing a trailer, make surethe gear you select does not put toomuch strain on the engine (using toohigh a gear).
• The drawbar assembly/trailer hitch maybe rated for trailers heavier than the vehi-cle is designed to tow. Please adhere toVolvo's recommended trailer weights.
• Avoid driving with a trailer on inclines ofmore than 15%.

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STARTING AND DRIVING
* Option/accessory.
374
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. Oil flow may not reachsome lubrication points fast enough toprevent engine damage.
• The engine should be idling when youmove the gear selector. Never accelerateuntil after you feel the transmissionengage. Accelerating immediately afterselecting a gear will cause harsh engage-ment and premature transmission wear.
• Selecting
P or N when idling at a stand-
still for prolonged periods of time will helpprevent overheating of the automatictransmission fluid.
Related information
• Ignition modes (p. 370)
• Turning the engine off (p. 374)
• Changing the remote key's battery (p. 215)
• Jump starting (p. 364)
Turning the engine off
The engine can be turned off using the start knob on the tunnel console.
Start knob in the tunnel console between the front seats
To turn off the engine:
–Turn the start knob toward STOP and
release it to switch the engine off.
If the gear selector is in P or if the vehicle is mov-
ing:
–Hold the knob in the STOP position until the
engine stops.
Related information
• Starting the engine (p. 372)
• Ignition modes (p. 370)
Drive modes
*
Selecting a drive mode affects the vehicle's driv- ing characteristics to help make driving moreenjoyable or easier in certain types of situations.
The following systems are adapted to help pro- vide the best vehicle performance in the respec-tive drive modes: • Steering
• Engine/transmission/All Wheel Drive
*
• Brakes
• Suspension control
• Instrument panel
• Start/Stop
• Climate system settings
Select the drive mode best suited to the current driving conditions. Please be aware that not all modes can be selected in all driving situations. The selectedmode will be displayed in the instrument panel.

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* Option/accessory.377
ECO drive mode
The Eco drive mode is a function designed to give the driver the opportunity to drive more eco-nomically and to help reduce fuel consumption.
When this mode is activated, the following cha- racteristics are modified:
• The automatic transmission's shifting points
• The engine management system and accel-erator pedal response
• Eco Coast functionality is activated: enginebraking is disabled at speeds betweenapprox. 40 and 87 mph(65 and 140 km/h)
• Climate system settings: certain functionswill be temporarily reduced or deactivated
• Information is shown in an ECO gauge in theinstrument panel to help promote more eco-nomical driving
NOTE
When Eco is activated, several climate system parameters are changed and the function ofcertain current-consuming systems will bereduced. Some of these functions can be restarted manually but full functionality will not berestored until Eco is deactivated.
Selecting ECO modeWhen the engine is switched off, ECO mode is deactivated and must be reactivated each time the engine is started.
ECO will appear in the
instrument panel when the function is activated.
Via Function view
Tap the button in the center display's Function view. An indi-cator light in the button showsthat the function is activated.
With the drive mode control *
1.
Press the DRIVE MODE control.
> A pop-up menu will open in the center display.
2. Roll the control upward or downward to scroll to the desired drive mode and 3. Press the control again to select it. A drive
mode can also be selected by tapping its button on the center display.
Eco CoastEco Coast essentially deactivates engine braking,allowing the vehicle to roll freely. When the driver releases the accelerator pedal, the transmission is automatically disengagedfrom the engine to allow the vehicle to roll as faras possible, which helps reduce fuel consump-tion. This feature is primarily intended to be used in driving situations where the vehicle can roll freely,such as down gentle hills or when a decrease inspeed is expected, such as when approaching anintersection or a traffic light. Eco Coast enables proactive driving with as little braking as possible. Depending on the driving situation, Eco and Eco Coast can be used in different ways to helpreduce fuel consumption: • With Eco activated
: this enables Eco Coast,
which allows the vehicle to roll freely for as
far as possible when the driver releases the
accelerator pedal (e.g., when approaching a traffic light or intersection).
or
• With Eco deactivated
: engine braking can
be used when the vehicle will only roll for

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STARTING AND DRIVING
* Option/accessory.
378 a short distance
(in heavy traffic, etc.) or
when driving down hills .
To help keep fuel consumption as low as possi- ble, Eco Coast should not be used in traffic situa-tions where the brakes have to be used fre-quently.
Activating Eco Coast
Eco Coast is activated when the accelerator pedal is released completely if:
• Eco is activated
• The gear selector is in
D
• The vehicle's speed is between approxi-mately 40 and 87 mph(65 and 140 km/h)Always observe posted speed limits
• The gradient of a down-slope is less thanapproximately 6%
COASTING will appear in the instrument panel
when Eco Coast is being used.
Limitations
Eco Coast is not available if:
• The engine and/or transmission have not reached their normal operating temperature
• Cruise control is activated
• The gear selector is moved from
D to " +/-"
for manual shifting
• The vehicle's speed is not within the40 and 87 mph(65 and 140 km/h) range •
The gradient of a down-slope is more thanapproximately 6%
• The steering wheel paddles
* are used for
manual shifting
Deactivating and turning off Eco Coast
In certain situations, it may be advisable to switch off the Eco Coast function, such as:
• When driving down steep hills, in order to uti-lize engine braking
• Prior to passing another vehicle, in order todo so as safely as possible
Deactivating Eco Coast (and reactivating enginebraking) can be done in the following ways: • Move the gear selector to the manual "
+/–"
position
• Change gears using the steering wheel pad- dles
*
• Press the brake or accelerator pedal
Turn the function off by changing drive modes * or
by turning ECO off in the center display's Func- tion view. The vehicle will roll for short distances even if Eco Coast is turned off to help conserve fuel.However, for the best fuel economy, the functionshould be used as much as possible.
ECO gauge in the instrument panel
Eco gauge 12" instrument panel
Eco gauge 8 instrument panel
The ECO gauge in the instrument panel helps improve driving economy.

STARTING AND DRIVING
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* Option/accessory.381
Related information
•Conditions for Start/Stop (p. 381)
• Start/Stop (p. 379)
Conditions for Start/Stop
Certain conditions must be met for the Start/ Stop feature to function. If a condition is not met,this will be indicated in the instrument panel.
The engine does not auto-stopIn certain situations or conditions, the engine may not auto-stop when the vehicle comes to a
standstill, such as when:
• the vehicle has not reached a speed of approx. 8 mph (12 km/h) after starting.
• after several auto-stops, the speed mustagain exceed approx. 8 mph (12 km/h)before the next auto-stop.
• the driver's seat belt is unbuckled.
• the main battery's charge is below the mini-mum level.
• the engine has not reached its normal oper-ating temperature.
• the ambient temperature is below approx.23°F (-5°C) or above approx. 85°F (30°C).
• the windshield's heating function
* is acti-
vated.
• the climate system cannot keep the desiredsettings in the passenger compartment.
• the vehicle is backing up.
• the main battery's temperature is above orbelow the permitted limits.
• the driver is turning the steering wheel hard. •
the road's incline is very steep.
• the hood is opened.
• the transmission has not reached its normaloperating temperature.
• driving at high altitude and the engine hasnot reached its normal operating tempera-ture.
• the gear selector is in the manual shiftingposition.
• the ABS brakes have activated.
• hard braking (even if the ABS brakes havenot activated).
• many starts during a short time period havetriggered the starter motor's overheating pro-tection.
• a trailer's electrical system is connected tothe vehicle's electrical system.
The engine does not auto-startIn certain situations or conditions, the engine may not auto-start
after an auto-stop, such as:
• if the driver is not wearing a seat belt
• the gear selector is in the
P position and the
driver's door is open. The engine must be started normally.
The engine auto-starts while the brake pedal is depressed
In the following situations, the engine will auto-
start even though the brake pedal is depressed:

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STARTING AND DRIVING
382•
condensation forms on the inside of the win- dows.
• the climate system cannot keep the desiredsettings in the passenger compartment.
• electrical current consumption is temporarilyhigh or the main battery's charge is belowthe minimum level.
• the brake pedal is pumped repeatedly.
• the hood is opened.
• the vehicle begins to move or increasesspeed slightly (if the engine auto-stoppedbefore the vehicle was at a standstill).
• the driver's seat belt is unbuckled while the gear selector is in the
D or N positions.
• the gear selector is moved from
D to R or ±.
• the driver's door is opened with the gearselector in
D: an audible signal and a text
message will inform the driver that the igni- tion is on.
WARNING
Do not open the hood if the engine has auto- stopped. The engine could suddenly auto-start. Before opening the hood:
• Switch off the ignition by turning the start knob in the tunnel console toward
STOP.
• Be aware that if the engine has been run- ning, components in the engine compart-ment will be very hot.
Related information
• Using the Start/Stop function (p. 379)
Automatic transmission
The automatic transmission has 8 forward gears and shifts up or down based on the level ofacceleration, speed and engine speed (meas-ured in revolutions per minute - rpm). Manualshifting is also possible. The gear indicator in theinstrument panel shows the gear currently beingused or gear shift mode.
CAUTION
The transmission

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* Option/accessory.383
Related information
•Gear selector positions (p. 384)
• Gear shift indicator (p. 384)
• Shiftlock (p. 383)
• Steering wheel paddles
* (p. 386)
• All Wheel Drive (AWD) (p. 387)
Shiftlock The automatic transmission's shiftlock feature helps prevent inadvertently moving the gearselector between different positions.
There are two different types of shiftlock: mechanical and automatic.
Mechanical shiftlock
The gear selector can be moved back and forth freely between
N and D. There is a mechanical
shiftlock for the other positions. To move the gear selector to between P, R , N
and D, press the button on the front of the gear
selector (see the illustration).
Automatic shiftlock
From Park – P
In order to move the gear selector from the P
position, the brake pedal must be depressed and the ignition must be in mode II.
From neutral – N
If the gear selector is in N and the vehicle has
been stationary for more than 3 seconds (regard- less of whether or not the engine is running), theshiftlock feature will lock the gear selector in thisposition. In order to move the gear selector from the N
position, the brake pedal must be depressed and the ignition must be in mode II.
Shiftlock override
If the vehicle cannot be driven (e.g., due to a dis- charged battery), the shiftlock feature has to beoverridden in order to move the gear selector

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STARTING AND DRIVING
* Option/accessory.
384 from the
P or D positions into N so that the vehi-
cle can be moved. To do so:
Lift away the rubber mat on the bottom of the storage compartment in front of the gearselector to expose the small hole for overrid-ing the shiftlock feature.
Press a small screwdriver or similar item into the hole and hold it down.
Press the button on the front side of the gear selector and move the selector to the N
position. Release the button and remove the screwdriver from the hole.
4. Put the rubber mat back into place.
Related information
• Gear selector positions (p. 384)
• Automatic transmission (p. 382)
Gear shift indicator
The gear shift indicator in the instrument panel shows the current gear (in manual shiftingmode) and will prompt the driver to shift up ordown to help get the best possible fuel econ-omy.
The gear shift indicator shows the current gear in the instrument panel and uses an upward arrowto recommend shifting to a higher gear.
Gear shift indicator (generic illustration)
Related information
• Gear selector positions (p. 384)
• Steering wheel paddles
* (p. 386)
Gear selector positions
The automatic transmission has 8 forward gears and also offers manual shifting.
Gear selector positions
The following gear selector positions are shown in the instrument panel:
P, R, N, D or M.
For manual shifting, the gear indicator in the instrument panel shows the gear currently beingused.

STARTING AND DRIVING
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385
Park – P
Park is activated using a switch located next to the gear selector. Select P when the vehicle is parked or when the
starting the engine. The vehicle must be station- ary when P is selected.
The ignition must be in mode II and the brake
pedal must be depressed before the gear selec-tor can be moved from P.
In position P, the transmission is mechanically
locked. Always apply the parking brake when the vehicle is parked.
NOTE
The gear selector must be in the P position
before the vehicle can be locked and the alarm set.
WARNING
Always apply the parking brake when the vehicle is parked, particularly when parking on a hill. The transmission's P mode may not be
able to keep the vehicle stationary if it is parked on an incline.
Reverse – R
The vehicle must be stationary before R can be
selected.
Neutral – N
No gear is selected and the engine can be started. Always apply the parking brake if thevehicle is not moving and the gear selector is in the N position.
The ignition must be in mode II and the brake
pedal must be depressed before the gear selec-tor can be moved from N.
Drive – D
D is the normal driving position and gear shifting
is fully automatic. The vehicle must be stationary when the gear selector is moved from R to D.
Manual shifting – M (shown on the
instrument panel)
Manual shifting can be selected at any time and engine braking will occur when the acceleratorpedal is released. To select, move the gear selector from D to the
side toward " ±". The current gear (1 - 8) will be
shown in the instrument panel.
• Press the gear selector forward toward "
+"
(plus) and release it to shift up one gear.
• Pull the gear selector rearward toward "
–"
(minus) and release it to shift down one gear.
Manual shift indicator in the instrument panel 6
.
For smooth shifting and engine performance, the transmission will shift down automatically if thevehicle's speed becomes too low for the selectedgear. Move the gear selector to the side toward D at
any time to resume automatic gear shifting.
Safety functionTo help avoid excessive rpm that might cause engine damage, the transmission control modulehas a down-shift protection feature that in somesituations may prevent a down-shift or kickdown. During kickdown, the transmission may shift down one or more gears, depending on theengine's rpm and will shift up again when max.rpm is reached for a specific gear.
6 Generic illustration.