2019 VOLVO S90 TWIN ENGINE check engine light

||
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)

MAINTENANCE AND SERVICE
}}
585

Periodic maintenance helps minimize
emissions
NOTE
Refer to your Service and Warranty Book-let for a comprehensive service and main-tenance schedule up to 240,000 km(150,000 miles). This program containsinspections and services necessary forthe proper function of your vehicle andincludes components that affect vehicleemissions.
The Warranty and Service Records Infor-mation booklet also contains detailedinformation concerning the warrantiesthat apply to your vehicle.

On-board Diagnostic System
OBD II is part of your vehicle's computerizedengine management system. It stores diagnosticinformation about your vehicle's emission con-trols. It can light the Check Engine light (MIL) if itdetects an emission control "fault." A "fault" is acomponent or system that is not performingwithin an expected range. A fault may be perma-nent or temporary. OBD II will store a messageabout any fault.
Emission inspection readiness
How do states use OBD II for emission
inspections?
Many states connect a computer directly to avehicle's OBD II system. The inspector can thenread "faults." In some states, this type of inspec-tion has replaced the tailpipe emission test.

How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspectionfor any of the following reasons:
If your Check Engine (MIL) light is lit, yourvehicle may fail inspection.
If your vehicle's Check Engine light was lit,but went out without any action on your part,OBD II will still have a recorded fault. Yourvehicle may pass or fail, depending on theinspection practices in your area.
If you had recent service that required dis-connecting the battery, OBD II diagnosticinformation may be incomplete and "notready" for inspection. A vehicle that is notready may fail inspection.

How can I prepare for my next OBD II
emission inspection?
If your Check Engine (MIL) light is lit or waslit but went out without service, have your
vehicle diagnosed and, if necessary, servicedby a qualified Volvo technician.
If you recently had service for a lit CheckEngine light, or if you had service thatrequired disconnecting the battery, a periodof driving is necessary to bring the OBD IIsystem to "ready" for inspection. Two half-hour trips of mixed stop-and-go/highwaydriving are typically needed to allow OBD II toreach readiness. Your Volvo retailer can pro-vide you with more information on planning atrip.
Maintain your vehicle in accordance with yourvehicle's maintenance schedule.
Owner maintenance
Periodic maintenance requirements and intervalsare described in your vehicle's Warranty andService Records Information booklet.
The following points can be carried out betweenthe normally scheduled maintenance services.

Each time the car is refueled:
Check the engine oil level.
Clean the windshield, windshield wipers,headlights, and taillights.

INDEX
653
Charging
hybrid battery 409
opening and closing the charging
door 414
start charging 415
Status 417, 419
stop charging 421
Charging cable 411
Charging current 411
Checking engine oil level 598
Child restraints 63, 65
booster cushions 71
convertible seats 69
infant seats 67
ISOFIX/LATCH anchors 74
lower attachment points 73
recalls and registration 65
top tether anchors 72
Child safety 63
Child safety locks 259
Circuit breaker 413
City Safety 333, 334, 336, 337, 343, 345
City Safety braking for oncoming vehicles 342
City Safety in crossing traffic 339, 340
City Safety when evasive maneuver preven-
ted341
Cleaning621, 623, 624
automatic car wash627
car wash624, 625, 627, 628, 629, 630
center display619
Seat belts621
textile upholstery619, 621, 622
upholstery 619, 621, 622, 623, 624
wheels630
Cleaning wheels630
Cleaning wiper blades628
Clean Zone199
Clean Zone Interior Package199
Climate196
auto-regulation214
blower control219, 220
parking224
perceived temperature197
Sensors196
temperature control221, 222
voice control197
zones196
Climate controls207
center display207
rear seat207
Climate system196, 207
Refrigerant648
repairs595
Clock, setting89
Collision42, 47, 52, 61
Collision warner
detection of pedestrians337
radar sensor324
Collision warning333, 346
Color code, paintwork632
Color codes632
Compass474
calibration475
Condensation in headlights625, 627,
628, 629
Connecting vehicle to Internet
No connection or poor connection 528
via a mobile device (WiFi)525
via cellular phone (Bluetooth) 525
via vehicle's modem526
Connect phone515
Contact information26
Convertible seats69
coolant647
Coolant, filling599
Cooling system
overheating465
Corner Traction Control271
Corrosion protection630
Crash, see Collision42

INDEX
656
Glass
laminated/reinforced 162
Glove compartment 577
Gracenote®503
Grocery bag holders 581
Gross vehicle weight643
Guide lines for Park Assist Camera 391
H
Handbrake434
Hand wash625
Hard disk
space530
Hazard warning flashers157
HD radio487
Head restraint191
Head-up display138
activate and deactivate139
cleaning620
replacing windshield595
settings140
store position140, 182, 183
Heated washer nozzles175
Heater232
auxiliary heater232
parking heater232
Heating
Seats209, 210
steering wheel213
windows217, 218
high beams152, 153
High engine temperature465
Hill Start Assist439
Hill Start Assist (HSA)439
Hoisting the vehicle592
Hold
vehicle function456
HomeLink®471
programming471
use473
HomeLink® remote control
programmable 471
Home safe lighting157
Honk193
Hood, opening594
Horn193
Hybrid battery605
Charging409
Hybrid battery gauge84
Hybrid gauge83
Hybrid mode446, 450
I
IAQS (Interior Air Quality System) 200
IC (Inflatable Curtain)60
ID, Volvo26
Identification number38
Ignition mode429, 430
Immobilizer250
Electronic immobilizer250
Indicator symbols90
Individual drive mode446
Infant seats67
Inflatable curtain60
Inflatable Curtain60
Inflating tires569
Inflation pressure
adjusting550
Checking549
decal551
recommended551
Inflation pressure monitoring551
action555
Status554