2021 VOLVO V90 CROSS COUNTRY check engine light

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STARTING AND DRIVING
* Option/accessory.
448
Related information
Trailer Stability Assist
* (p. 448)
Checking trailer lights (p. 449)
Towing capacity and tongue weight (p. 656)
Overheating of engine and transmission(p. 442)
Trailer Stability Assist
*
Trailer Stability Assist (TSA 23
) is part of the
ESC 24
stability system and is a function
designed to help stabilize a vehicle that is towing a trailer when the vehicle and trailerhave begun to sway. The function is addedwhen installing a towbar. Contact a Volvoretailer for more information.
Reasons for swayingA vehicle towing a trailer may begin to sway for various reasons. Normally this only occursat high speeds. However, if the trailer is over-loaded or unevenly distributed, e.g. too farback, there is a risk of swaying even at lowspeeds. Swaying may be caused by factors such as:
The vehicle and trailer are hit by a sudden, strong crosswind.
The vehicle and trailer are traveling on anuneven road or over a bump.
Sudden movements of the steering wheel.
Once swaying has begun, it can be difficult orimpossible to stop it. This makes the vehicleand trailer difficult to control and there is a riskof swerving into oncoming traffic or driving offthe road.
Trailer Stability Assist functionTrailer Stability Assist continuously monitorsthe vehicle's movements, particularly lateralmovements. If swaying is detected, the brakesare applied individually on the front wheels,which has a stabilizing effect on the vehicleand trailer. This is often enough to enable thedriver to regain control of the vehicle. If the Trailer Stability Assist function's first attempt is not adequate to stop the swayingmotion, the brakes are applied on all wheelsand engine power is temporarily reduced. Asthe swaying motion begins to decrease andthe vehicle and trailer have once againbecome stable, TSA stops regulating thebrakes/engine power and the driver regainscontrol of the vehicle.
NOTE
Trailer Stability Assist is deactivated if the driver activates ESC Sport Mode in the
center display's menu system.
Trailer Stability Assist may not intervene if the driver tries to compensate for the swayingmotion by moving the steering wheel rapidly,because the system will then not be able todetermine if it is the trailer or the driver caus-ing the swaying.
23 Trailer Stability Assist
24 Electronic Stability Control

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STARTING AND DRIVING
* Option/accessory.
450
Checking trailer lights *
Automatic check
When the trailer has been connected to the vehicle's electrical system, its lights can bechecked by automatically activating them.This function helps the driver check that thetrailer's lights are functioning correctly beforestarting to drive. In order to perform this check, the vehicle must be switched off.
1. When a trailer is connected to the towbar,
the message
Automatic Trailer Lamp
Check will appear in the instrument panel.
2. Acknowledge the message by pressing the O button on the right-side steering
wheel keypad.
> The light check will begin.
3. Get out of the vehicle to perform the check.
> All of the lights on the trailer will beginflashing, and then illuminate separately one at a time.
4. Visually check that all of the trailer's lights are functioning correctly.
5. After a short time, all of the trailer's lights will start flashing again.
> The light check is completed.
Disabling the automatic check
The automatic light check can be disabled in the center display. 1.Tap
Settings in the Top view.
2. Tap
My CarLights and Lighting.
3. Deselect
Automatic Trailer Lamp
Check.
Manual check
If the automatic check has been disabled, the check can be started manually. 1. Tap
Settings in the Top view.
2. Tap
My CarLights and Lighting.
3. Select
Manual Trailer Lamp Check.
> The light check will begin. Get out of the vehicle to perform the check.
Related information
Driving with a trailer (p. 446)
Towing using a towline
This section refers to one vehicle being towed behind another using a towline.
Before towing another vehicle, check applica- ble speed limit regulations.
Preparations and towing
CAUTION
For some transmission variants, it is not possible to shift from P position if theengine is switched off. Contact an author-ized Volvo workshop for assistance towingor call a professional towing service.
CAUTION
Note that the vehicle must always be towed with the wheels rolling forward.
Do not tow a vehicle with automatictransmission at a speed greater than80 km/h (50 mph) or for a distancegreater than 80 km (50 miles).

MAINTENANCE AND SERVICE
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583
Periodic maintenance helps minimize emissions
NOTE
Refer to your Service and Warranty Booklet for a comprehensive serviceand maintenance schedule up to240,000 km (150,000 miles). Thisprogram contains inspections and ser-vices necessary for the proper functionof your vehicle and includes compo-nents that affect vehicle emissions.
The Warranty and Service RecordsInformation booklet also containsdetailed information concerning thewarranties that apply to your vehicle.
On-board Diagnostic SystemOBD II is part of your vehicle's computerized engine management system. It stores diag-nostic information about your vehicle's emis-sion controls. It can light the Check Enginelight (MIL) if it detects an emission control"fault." A "fault" is a component or systemthat is not performing within an expectedrange. A fault may be permanent or temporary.OBD II will store a message about any fault.
Emission inspection readiness
How do states use
OBD II for emission
inspections?
Many states connect a computer directly to a vehicle's OBD II system. The inspector canthen read "faults." In some states, this type ofinspection has replaced the tailpipe emissiontest.
How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspec- tion for any of the following reasons: If your Check Engine (MIL) light is lit, your vehicle may fail inspection.
If your vehicle's Check Engine light was lit,but went out without any action on yourpart, OBD II will still have a recorded fault.Your vehicle may pass or fail, dependingon the inspection 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 was lit but went out without service, have your vehicle diagnosed and, if necessary,serviced by a qualified Volvo technician.
If you recently had service for a lit CheckEngine light, or if you had service thatrequired disconnecting the battery, aperiod of driving is necessary to bring theOBD II system to "ready" for inspection.Two half-hour trips of mixed stop-and-go/highway driving are typically needed toallow OBD II to reach readiness. YourVolvo retailer can provide you with moreinformation on planning a trip.
Maintain your vehicle in accordance withyour vehicle's maintenance schedule.
Owner maintenancePeriodic maintenance requirements and inter-vals are described in your vehicle's Warrantyand Service Records Information booklet. The following points can be carried out between the normally scheduled maintenanceservices.
Each time the vehicle is refueled:
Check the engine oil level.
Clean the windshield, windshield wipers, headlights, and taillights.

INDEX
665
electrical outlet 566, 567
Lighting 167
Cargo compartment cover 573, 574
cargo net 577
Cargo net 577
Car wash 634, 636, 637, 638, 639, 640
Catalytic converter 442 recovery 451
Cell phone, see Phone 500
Center console 565 Center display change appearance 135
cleaning 629
climate controls 218
Function view 126
handling 116, 119, 123, 128
keyboard 130
messages 144, 145
overview 114
settings 136, 137
switch off and change volume 135
symbols in status bar 128
views 119
Central locking 266
Certificate 510
Change of owner 138
Changing target vehicle 320
Checking engine oil level 596 Child lock activating/deactivating 267
Child restraints 66, 68 booster cushions 74
convertible seats 72
infant seats 70
integrated booster cushion 79
ISOFIX/LATCH anchors 77
lower attachment points 77
recalls and registration 68
top tether anchors 75
Child safety 66
City Safety 331 braking for oncoming vehicles 340
crossing traffic 337
delayed evasive maneuver 339
detecting obstacles 335
evasive maneuver 338
limitations 341
limitations for evasive maneuvers 339
limitations in crossing traffic 338
setting warning distance 334
sub-functions 332
Symbols and messages 344
Cleaning 632, 633, 634 automatic car wash 637
car wash 634, 636, 637, 638, 639,640center display 629
Seat belts 631
textile upholstery 628, 630, 632
upholstery 628, 630, 631, 632,633 , 634
wheels 640
Cleaning wheels 640
Cleaning wiper blades 639
CleanZone 210
Clean Zone Interior Package 210
Climate 206 auto-regulation 224
blower control 228, 229
parking 234
perceived temperature 208
Sensors 207
temperature control 230, 231, 232
voice control 208
zones 206
Climate controls 218 center display 218
rear seat 218
Climate system 206, 218 Refrigerant 659
repairs 592
Clock, setting 98
Collision 44, 49, 55, 64

INDEX
667
Door mirrors 176
compass 458
dimming 177
outer 176
power folding 177
resetting 177
store position 192, 193
Download Center 585 use 585
Driveline transmission 412
Drive mode 419 changing 421
ECO 422, 424
when using driver support 323
Driver Alert Control 356 activating/deactivating 357
limitations 358
rest stop guidance 357
Driver performance 96 settings 97
Driver profile 140 edit 141, 142, 143
select 141
Driver support system 278 Drive mode 323
Drivingcooling system 442
with a trailer 446
Driving economy 435
Driving through standing water 437driving with a trailer towball load 656
towing capacity 656
E
ECO climate 422
ECO mode 422
activate with function button 424
Economical driving 422, 435
Electrical outlet 566 use 567
Electrical system 600
Electric parking brake 406
Electronic immobilizer 260
emergency brake lights 165
Emission inspection readiness 582 Engine overheating 442
start 398
Start/Stopfunction 425
turn off 400
Engine braking 403, 433 Engine compartment coolant 598
engine oil 595
overview 594
Engine drag control 279
Engine oil 595 checking and filling 596
grade and volume 658
Engine shutdown 400
Engine specifications 657Engine temperature high 442
Environment 28Ethanol content max. 10% by volume 439
Exterior dimensions 653
F
Federal Clean Air Act 582
Ferry transport 429
Flooded road 437
Fluids, volumes 646, 659