2019 VOLVO S90 TWIN ENGINE warning light

STARTING AND DRIVING
* Option/accessory.439
Hill Start Assist
The function for assisting when starting the vehi-cle on inclines, Hill Start Assist (HSA), helpsprevent the vehicle from rolling backward whenstarting on an uphill gradient. When backing upa hill, HSA helps prevent the vehicle from rollingforward.
The function retains pressure from the brakepedal in the brake system for several secondsafter the brake pedal has been released.
This temporary braking effect is released after afew seconds or when the driver begins driving.
Hill Start Assist is available even if the Auto-holdbrake function is switched off.

Related information
Auto-hold brakes (p. 437)
Brakes (p. 431)
Braking assist after a collision
In a collision in which the activation level isreached for the pyrotechnic seat belt tensionersor airbags, or if a collision with a large animal isdetected, the vehicle's brakes will be automati-cally activated. This function is intended to helpprevent or reduce the effects of any subsequentcollision.
After a serious collision, it may no longer be pos-sible to control and steer the vehicle. In order toavoid or mitigate a possible further collision witha vehicle or an object in the vehicle's path, thebrake assist system is activated automatically tohelp stop the vehicle safely.
The brake lights and hazard warning flashers areactivated during braking. When the vehicle hasstopped, the hazard warning flashers will con-tinue to flash and the parking brake will beapplied.
If braking is not appropriate, e.g. if there is a riskof being hit by passing traffic, the driver can over-ride the system by depressing the acceleratorpedal.
This function assumes that the brake system isintact after a collision.
Brake assist is part of the Rear Collision Warningand Blind Spot Information safety systems.
Related information
Rear Collision Warning (p. 346)
BLIS* (p. 347)
Brake functions (p. 430)

STARTING AND DRIVING
465
Overheating of engine andtransmission
In demanding driving conditions, such as drivingin mountainous areas or hot weather, there is arisk of the engine or transmission overheating,especially when carrying heavy loads.
Engine power may be temporarily limited.
Remove any auxiliary lights mounted in frontof the grille when driving in hot weather.
If the temperature in the engine's coolingsystem becomes too high, a warning symbolwill appear in the instrument panel along withthe message Engine temperature Hightemperature Stop safely. Pull over to asafe location and let the engine idle for a fewminutes to cool down.
If the message Engine temperature Hightemperature Turn off engine or Enginecoolant Level low, turn off engine is dis-played, stop the vehicle and turn off theengine.
If the transmission begins to overheat, analternative gear shifting program will beselected. An integrated protective functionwill also be activated, the warning symbol willilluminate and the message Transmissionwarm Reduce speed to lowertemperature or Transmission hot Stopsafely, wait for cooling will be displayed inthe instrument panel. Follow the recommen-dations given by reducing speed or stopping
the vehicle safely and letting the engine idlefor a few minutes to let the transmissioncool.
If the vehicle begins to overheat, the air con-ditioning may be temporarily switched off.
After a prolonged period of driving indemanding conditions, do not turn off theengine immediately after stopping.

NOTE
It is normal for the engine's cooling fan tooperate for a short time after the engine isswitched off.

Symbols in the instrument panel
Symbol Meaning
High engine temperature. Followthe recommendations provided.
Low coolant level. Follow the rec-ommendations provided.
Transmission hot/overheated/cool-ing. Follow the recommendationsprovided.
Related information
Refilling coolant (p. 599)
Preparing for a long trip (p. 457)

STARTING AND DRIVING
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467
1.Put the ignition in mode 0.
2.Make sure the auxiliary battery (the batteryused to jump start the discharged battery)has a voltage of 12 volts.
3.If the auxiliary battery is in another vehicle,turn off that vehicle's engine and make surethat the vehicles are not touching each other.
4. Clamp the red jumper cable onto the auxiliarybattery's positive (+) terminal (1).

CAUTION
Connect the jump cable carefully to preventshort circuits with other components in theengine compartment.
5. Fold back the cover over your vehicle's posi-tive (+) jump start terminal (2).
6. Clamp the other end of the red jumper cableto your vehicle's positive (+) jump start termi-nal (2).
7.Clamp the black jumper cable onto the auxili-ary battery's negative (-) terminal (3).
8. Clamp the other end of the black jumpercable to your vehicle's negative (-) groundpoint (4).
9. Make sure the jumper cables are securelyattached to help prevent sparks while jumpstarting.
10. Start the engine of the assisting vehicle andlet it run for a few minutes at a higher idlingspeed than normal, about 1500 rpm.
11. Start your vehicle's engine. If the enginedoes not start, allow an additional 10minutes of charging time and then try to startthe engine again.
NOTE
When the engine is started under normalconditions, the vehicle's electrical drive motoris prioritized – the gasoline engine remainsoff. This means that the electric motor has"started" and the vehicle is ready to be drivenonce the start knob has been turned clock-wise. Start of the electric motor is indicatedby the indicator lights on the instrument panelgoing out and its preselected theme illuminat-ing.

CAUTION
Do not touch the connections between thecable and the vehicle during the start attempt.Risk of sparking.
12. Remove the jumper cables in the reverseorder ‒ first the black cables and then thered cables.
Make sure that none of the clamps of theblack jumper cables come into contact witheither vehicle's positive (+) jump start termi-nals or either of the red jumper cable's con-nected clamps.
WARNING
PROPOSITION 65 WARNING! Battery posts,terminals, and related accessories containlead and lead compounds, chemicals knownto the state of California to cause cancer andreproductive harm. Wash hands after han-dling.

WARNING
Batteries generate hydrogen gas, whichis flammable and explosive.
Do not connect the jumper cable to anypart of the fuel system or to any movingparts. Avoid touching hot manifolds.
Battery fluid contains sulfuric acid. Do notallow battery fluid to contact eyes, skin,fabrics or painted surfaces.

STARTING AND DRIVING
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* Option/accessory.471
HomeLink®*8
HomeLink®9 is a programmable remote control,integrated in the vehicle electrical system, thatcan control up to three different devices (e.g.garage door opener, alarm system, outdoor andindoor lighting) and thereby replace the remotecontrols for these.

General
The illustration is generic – the design may vary.
Button 1
Button 2
Button 3
Indicator light
HomeLink® is delivered integrated in the rearview
mirror. The HomeLink® panel consists of threeprogrammable buttons and an indicator light inthe mirror.
For more information about HomeLink®, pleasevisit www.HomeLink.com, www.youtube.com/HomeLinkGentex or call 1-800-355-3515.
Save the original remote controls for future pro-gramming (e.g. for use in another vehicle). It isalso advisable to delete the button programmingif the vehicle is sold.

Related information
Using HomeLink®* (p. 473)
Programming HomeLink®* (p. 471)
Type approval for HomeLink®* (p. 473)
Programming HomeLink®*10
Follow these instructions to program
HomeLink®, reset all programming, or programindividual buttons.
NOTE
In some vehicles, the ignition must be on or in
the "accessory position" before HomeLink®
can be programmed or used. It can be a goodidea to put new batteries in the remote con-
trol being replaced by HomeLink® for fasterprogramming and better radio signal trans-
mission. The HomeLink® buttons should bereset before programming.

WARNING
While HomeLink® is being programmed, thegarage door or gate being programmed maybe activated. Make sure that no one is nearthe door or gate during programming. Whenprogramming a garage door opener, it isadvised to park outside of the garage.
8Certain markets only.9HomeLink and the HomeLink house symbol are registered trademarks of Gentex Corporation.10Certain markets only.

STARTING AND DRIVING
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* Option/accessory.473
Using HomeLink®*12
Once HomeLink® is programmed, it can beused instead of the separate remote controls.
Press and hold the programming button. Thegarage door, gate, alarm system, etc. will be acti-vated (this may take several seconds). If the but-ton is held down for more than 20 seconds,reprogramming will begin. The indicator light willglow steadily or flash when the button has beenpressed. The original remote controls may be
used concurrently with HomeLink® if desired.

NOTE
If the ignition is off, HomeLink® works for30 minutes after the driver's door has beenopened.
WARNING
If you use HomeLink® to open a garagedoor or gate, be sure no one is near thegate or door while it is in motion.
Do not use HomeLink® with any garagedoor opener that lacks safety stop andreverse features as required by US fed-eral safety standards (this includes anygarage door opener model manufacturedbefore April 1, 1982). A garage door thatcannot detect an object - signaling thedoor to stop and reverse - does not meetcurrent U.S. federal safety standards. Formore information, contact HomeLink at:www.homelink.com.

Related information
HomeLink®* (p. 471)
Programming HomeLink®* (p. 471)
Type approval for HomeLink®* (p. 473)
Type approval for HomeLink®*13
FCC (USA) and IC (Canada)
This device complies with FCC rules part 15 andIndustry Canada RSS-210. Operation is subjectto the following two conditions: (1) This devicemay not cause harmful interference, and (2) Thisdevice must accept any interference that may bereceived including interference that may causeundesired operation.

WARNING
The transmitter has been tested and complieswith FCC and IC rules. Changes or modifica-tions not expressly approved by the partyresponsible for compliance could void theuser's authority to operate the device.14

Type approval for EU
Gentex Corporation hereby declares that
HomeLink® Model UAHL5 complies with theRadio equipment directive 2014/53/EU.
Wavelengths within which the radio equipmentoperates:
433.05MHz-434.79MHz <10mW E.R.P.
868.00MHz-868.60MHz <25mW E.R.P.
868.70MHz-868.20MHz <25mW E.R.P.
12Certain markets only.13Certain markets only.14The term "IC:" before the certification/registration number only signifies that Industry Canada technical specifications were met.

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WHEELS AND TIRES
* Option/accessory.554

NOTE
Always remember to calibrate the Tire Pres-sure Monitoring System when the wheelshave been changed or the tire inflation pres-sure has been corrected according to the tirepressure decal or tire inflation pressure table.
If correct reference values have not been set,the system cannot issue low tire pressurealerts correctly.
The vehicle must be stationary with theengine running to access the calibration but-ton and to start the calibration process.

WARNING
The exhaust gases contain carbon monoxide,which is invisible and odorless but very poi-sonous. For this reason, always perform thecalibration procedure outdoors or in a work-shop with exhaust gas evacuation equipment.

Related information
Recommended tire pressure (p. 551)
Adjusting tire pressure (p. 550)
Viewing tire pressure status in the centerdisplay* (p. 554)
Action when warned of low tire pressure(p. 555)
Tire pressure monitoring system* (p. 551)
Viewing tire pressure status in the
center display*
With the system for tire pressure monitoring 10,tire pressure status can be viewed in the centerdisplay.
Checking status
1.Open the Car Status app in App view.
2.Tap TPMS to display the status of the tires.
Status indicator light
The graphic in the center display shows the sta-
tus of each tire11.
Green tire:
Inflation pressure is above the warningthreshold.
Yellow tire:
The tire's inflation pressure is too low. Stopand check/inflate the tire as soon as possi-ble. Recalibrate the system after adjustingthe tire pressure.
All tires yellow:
The inflation pressure is too low in one ormore tires. Stop and check/inflate the tiresas soon as possible. Recalibrate the systemafter adjusting tire pressure.
10Tire Pressure Monitoring System (TPMS)

WHEELS AND TIRES
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* Option/accessory.557
Jack*
The jack can be used to lift the vehicle to e.g.change a wheel.
The illustration is generic – the design may vary.

CAUTION
When not in use, the jack* should be keptin its storage compartment under thecargo compartment floor.
The jack provided with your vehicle isintended to be used only in temporary sit-uations such as changing wheels in theevent of a flat tire. Only the jack thatcame with your particular model shouldbe used to lift the vehicle. If the vehicleneeds to be lifted more frequently or for aprolonged period, using a garage jack orhoist is recommended. Always follow thisdevice's instructions for use.
The jack needs to be cranked together to thecorrect position in order to fit.

Models with leveling control *
If the vehicle is equipped with the optional pneu-matic suspension, it must be turned off beforethe vehicle is lifted on a jack.

Related information
Tool kit (p. 556)
Wheel bolts
The wheel bolts hold the wheel in place on thewheel hub.
CAUTION
The wheel bolts should be tightened to140 Nm (103 ft. lbs.). Over-tightening orunder-tightening could damage the threadedjoints.
Only use rims that have been tested andapproved by Volvo and are included in Volvo'soriginal product range.
Use a torque wrench to check that the wheelbolts are tightened correctly.
Do not grease the wheel bolt threads.

WARNING
The wheel bolts may need to be tightenedagain several days after a wheel change.Temperature fluctuations and vibrations cancause them to loosen slightly.

Locking wheel bolts *
A tool for removing the locking wheel bolts islocated in the foam block under the cargo com-partment floor.

WHEELS AND TIRES
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* Option/accessory.561
1.Clean the contact surfaces between thewheel and the wheel hub.
2.Lift the wheel into place. Tighten the wheelbolts securely.
Do not grease the wheel bolt threads.
3. Lower the vehicle so that the wheel cannotrotate.
4. Tighten the wheel bolts in a crisscross pat-tern (as shown in illustration). It is importantthat the wheel bolts are securely tightened.Tighten to a torque of 140 Nm (103 ft.lbs.).Use a torque wrench to check torque.
5. Press the plastic covers onto the wheel bolts.

WARNING
The wheel bolts may need to be tightenedagain several days after a wheel change.Temperature fluctuations and vibrations cancause them to loosen slightly.

NOTE
After inflating a tire, always replace thevalve cap to help prevent valve damagecaused by gravel, dirt, etc.
Use plastic valve caps only. Metal capscould corrode and become difficult toremove.

Related information
Leveling control settings* (p. 453)
When changing wheels (p. 556)
Hoisting the vehicle (p. 592)
Jack* (p. 557)
Tool kit (p. 556)
Removing a wheel (p. 558)
Spare wheel15
The spare wheel is a Temporary Spare and canbe used to temporarily replace a punctured tireon one of the vehicle's regular wheels.
The spare tire is only intended for temporary use.Replace it with a normal wheel as soon as possi-ble.
The driving characteristics of the vehicle changeand ground clearance reduces when the sparewheel is used. Do not wash the vehicle in anautomatic car wash while using the TemporarySpare.
The recommended tire pressure must be main-tained regardless of at which position the tempo-rary spare wheel is used on the vehicle.
If the spare wheel is damaged, a new one can bepurchased from a Volvo retailer.

WARNING
Current legislation prohibits the use of the"Temporary Spare" tire other than as a tem-porary replacement for a punctured tire. Itmust be replaced as soon as possible by astandard tire. Road holding and handling maybe affected with the "Temporary Spare" inuse. Do not drive faster than 80 km/h(50 mph).
15Not available on all models.