STARTING AND DRIVING
462
Hill Descent Control
The function for assisting when driving downhill,Hill Descent Control (HDC), is a low-speedfunction with increased engine braking. Thefunction makes it possible to increase ordecrease the vehicle's speed on steep downhillgradients by only using the accelerator pedal,without applying the brakes.
The function is included in the Off Road drivemode.
HDC is designed for driving on rough roads atlow speeds and downhill gradients with slipperyor otherwise difficult road surfaces. The driverdoes not need to use the brake pedal but caninstead focus on steering.
WARNING
HDC is only intended to be a supplementarybraking aid and it does not function in all sit-uations.
The driver is always ultimately responsible foroperating the vehicle in a safe manner.
Function
Hill Descent Control allows the vehicle to moveforward or backward at very low speeds assistedby the brake system. The driver can increase thespeed by pressing the accelerator pedal. Whenthe accelerator pedal is released, the vehicle willreturn to very low speed regardless of how steep
the hill is and without the brakes needing to beapplied. The brake lights will illuminate when thefunction is activated.
The driver can brake to stop or slow the vehicleat any time by depressing the brake pedal.
HDC is activated along with Low Speed Control(LSC), which facilitates and improves traction andcontrol on rough and slippery surfaces. The sys-tem is intended to be used at low speeds, up toapproximately 40 km/h (25 mph).
To keep in mind when using HDC
If the function is switched off while driving ona steep downhill gradient, braking effect willbe gradually reduced.
HDC can be used in gear positions D and R,and in manual gears 1 or 2.
It is not possible to manually shift to thirdgear or higher when HDC is active.
NOTE
When LSC with HDC is activated in the OFFROAD drive mode, the feel of the acceleratorpedal and engine response will change.
NOTE
This drive mode is not designed to be usedfor normal street driving.
NOTE
The function is deactivated when driving athigh speeds and must be reactivated at lowerspeeds if so desired.
Related information
Activating and deactivating Hill Descent Con-trol using the function button (p. 463)
Changing drive mode (p. 455)
Low Speed Control (p. 460)
All Wheel Drive (AWD) (p. 448)
STARTING AND DRIVING
}}
475
Emission controls
Three-way catalytic converter
Keep your engine properly tuned. Certainengine malfunctions, particularly involving theelectrical, fuel or distributor ignition systems,may cause unusually high three-way catalyticconverter temperatures. Do not continue tooperate your vehicle if you detect enginemisfire, noticeable loss of power or otherunusual operating conditions, such as engineoverheating or backfiring. A properly tunedengine will help avoid malfunctions thatcould damage the three-way catalytic con-verter.
Do not park your vehicle over combustiblematerials, such as grass or leaves, which cancome into contact with the hot exhaust sys-tem and cause such materials to ignite undercertain wind and weather conditions.
Excessive starter cranking (in excess of oneminute), or an intermittently firing or floodedengine can cause three-way catalytic con-verter or exhaust system overheating.
Remember that tampering or unauthorizedmodifications to the engine, the Engine Con-trol Module, or the vehicle may be illegal andcan cause three-way catalytic converter orexhaust system overheating. This includes:altering fuel injection settings or compo-nents, altering emission system components
or location or removing components, and/orrepeated use of leaded fuel.
NOTE
Unleaded fuel is required for vehicles withthree-way catalytic converters.
Heated oxygen sensors
The heated oxygen sensors monitor the oxygencontent of the exhaust gases. Readings are fedinto a control module that continuously monitorsengine functions and controls fuel injection. Theratio of fuel to air into the engine is continuouslyadjusted for efficient combustion to help reduceharmful emissions.
Related information
Octane rating (p. 473)
Fuel (p. 472)
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
STARTING AND DRIVING
483
Disabling the automatic check
The automatic light check can be disabled in thecenter 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, thecheck 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 thevehicle to perform the check.
Related information
Driving with a trailer (p. 479)
Towing using a towline
This section refers to one vehicle being towedbehind another using a towline.
Twin Engine vehicles may not be towed behindanother vehicle due to the risk of damage to theelectric motor. The vehicle must be lifted onto atow truck and transported with all four wheels onthe bed or lifting platform of the truck (no wheelsmay touch the road).
Towing another vehicle
Towing another vehicle requires a lot of power -use the AWD drive mode. This helps charge thehybrid battery and improve the vehicle's drivingand roadholding characteristics.
Before towing another vehicle, check applicablespeed limit regulations.
Jump starting
Do not tow the vehicle to start the engine. Use anauxiliary battery if the start battery's charge levelis so low that the engine cannot be started.
CAUTION
Attempts to tow-start the vehicle could causedamage to the electrical drive motor andthree-way catalytic converter.
Related information
Attaching and removing the towing eyelet(p. 484)
Hazard warning flashers (p. 161)
Recovery (p. 485)
Jump starting using another battery (p. 477)
Selecting ignition mode (p. 434)
||
MAINTENANCE AND SERVICE
* Option/accessory.650
Wash using a sponge, car washing detergentand plenty of lukewarm water.
Clean the wiper blades with lukewarm soapsolution or car washing detergent.
Dry the vehicle using a clean, soft chamois ora squeegee. Try not to let drops of water dryin strong sunlight. This could cause waterdrying stains that may need to be polishedout.
In areas with heavy industrial emissions,more frequent washing of the vehicle's exte-rior is recommended.
Tar spots from asphalt may remain even afterwashing. Use a tar remover to remove thesespots after washing the vehicle.
WARNING
Always entrust engine washing to a workshop.If the engine is hot, there is a risk of fire.
CAUTION
Dirty headlights do not work as well. Cleanthem regularly, e.g. when refueling.
Do not use corrosive cleaners. Use water anda non-abrasive sponge.
NOTE
Exterior lighting such as headlights and tail-lights may develop temporary condensationon the inside of the lens. This is normal. Allexterior lighting is designed to resist this.Condensation is normally vented out of thelamp housing once the light has been lit forsome period of time.
CAUTION
Make sure that the panoramic roof* andsun shade are closed before washing thevehicle.
Never use abrasive polishing agents onthe panoramic roof.
Never use wax on the rubber sealsaround the panoramic roof.
CAUTION
Remember to remove dirt from the drainholes in the doors and sills after washing thevehicle.
Related information
Cleaning the exterior (p. 648)
Polishing and waxing (p. 649)
Automatic car washes (p. 651)
High-pressure washing (p. 652)
Cleaning the wiper blades (p. 652)
Cleaning exterior plastic, rubber and trimcomponents (p. 653)
Cleaning rims (p. 654)
Corrosion protection (p. 654)
Settings for automatically activating the park-ing brake (p. 440)
INDEX
675
1, 2, 3 ...
4WD448
A
ABS
anti-lock brakes435
AC (Air conditioning) 224
ACC - Adaptive Cruise Control 294, 297,
298, 299, 300, 301, 303, 304, 305, 306,
307, 308
Accessories and extra equipment 35
installation 36
Accessory installation warning 36, 37
Active Bending Lights 159
Adapting driving characteristics 272, 450
Adaptive Cruise Control 294, 297, 298,
299, 300, 301, 303, 304, 305, 306, 307, 308
change cruise control functionality 307
function 294
manage speed 298, 299
pass 303, 304
radar sensor 326
set time interval 300, 301
troubleshooting 306
Adjusting the steering wheel 198
Airbag52
activation/deactivation56
driver's side53
passenger side53, 56
Air bag, see Airbag52
Air conditioning224
Air conditioning, fluid
volume and grade672
Air distribution205
air vents205, 207
changing206
defrosting218
recirculation217
table showing options209
Air quality202, 204
allergy and asthma204
passenger compartment filter 205
Air recirculation217
Alarm267
deactivating268
Allergy and asthma-inducing substances 204
All Wheel Drive, AWD448
All Wheel Drive (AWD)448
All Wheel Drive (four-wheel drive) 448
Android Auto526, 528
Antenna
location256
Apple CarPlay523, 525
Approach lighting161
Apps494
Assistance at risk of collision 375, 376,
377, 378, 379, 380, 381, 382, 384
Audio and media492
Audio system
HD digital radio504
SiriusXM® Satellite radio 504, 505, 507
Auto-climate216
Auto hold442
Auto-hold brakes442
activate and deactivate442
after collision443
Automatic car wash651
Automatic high beam157
Automatic locking260
Automatic relocking240, 253
Automatic Speed Limiter 281, 283, 284, 285
Automatic transmission445
kickdown448
oil671
Trailer479
Auxiliary heater232
INDEX
INDEX
676
B
Backrest
front seat, adjusting184, 185, 188,
189, 190, 191
rear seat, folding193
Battery
Hybrid629
jump-start477
Maintenance625
start625
symbols on the battery630
warning symbols630
BLIS350, 351, 352, 353
Blower
adjusting222
air distribution206
air vents207
Bluetooth
connect520
connecting vehicle to Internet 539
phone528
settings537
Book service and repair613
Booster cushions71
Brake assist
after collision443
Brake fluid
grade671
Brake functions434
Brake light160
Brake position445
Brakes435
anti-lock brakes, ABS435
automatic when stationary442
Brake Assist System, BAS437
brake lights160
brake system434
emergency brake lights160
handbrake438
Maintenance438
on salted roads437
on wet roads437
brake system
fluid671
C
Camera sensor346
Camera unit331, 335
Capacity weight584, 667
Cargo compartment595
attachment points598
cargo net603
electrical outlet590, 592
Lighting163
Cargo compartment cover598, 600
cargo net603
Cargo net603
Car wash 648, 649, 651, 652, 653, 654
Catalytic converter475
recovery483
CD player518
Cell phone, see Phone529
Center console589
Center display
change appearance131
cleaning643
climate controls212
Function view122
keyboard126
messages140, 141
operation112, 115, 119, 124
overview109
settings132, 133
switch off and change volume 131
symbols in status bar124
views115
Central locking256
Change of owner134
Changing a wheel570
INDEX
677
Charge
vehicle function 467
Charge level
vehicle function 467
Charging
hybrid battery 413
opening and closing the charging
door 418
start charging 419
Status 421, 423
stop charging 425
Charging cable 415
Charging current 415
Checking engine oil level 622
Child restraints 63, 65
booster cushions 71
convertible seats 69
infant seats 67
integrated booster cushion 75
ISOFIX/LATCH anchors 74
lower attachment points 73
recalls and registration 65
top tether anchors 72
Child safety 63
Child safety locks 258
Circuit breaker 417
City Safety 335, 336, 338, 339, 346, 348
City Safety braking for oncoming vehicles 345
City Safety during evasive maneuver343
City Safety in crossing traffic 341, 342
City Safety when evasive maneuver preven-
ted344
Cleaning645, 647, 648
automatic car wash651
car wash 648, 649, 651, 652, 653, 654
center display643
Seat belts645
textile upholstery643, 645, 646
upholstery 643, 645, 646, 647, 648
wheels654
Cleaning wheels654
Cleaning wiper blades652
Clean Zone203
Clean Zone Interior Package204
Climate200
auto-regulation216
blower control222
parking224
perceived temperature201
Sensors200
temperature control222, 223
voice control201
zones200
Climate controls212
center display212
rear seat212
Climate system 200, 212
Refrigerant 672
repairs 619
Clock, setting 93
Collision 42, 47, 52, 61
Collision warner
detection of pedestrians 339
radar sensor 326
Collision warning 335, 349
Color code, paintwork 656
Color codes 656
Compass 489
calibration 489
Condensation in headlights 649, 651,
652, 653
Connecting vehicle to Internet
No connection or poor connection 542
via a mobile device (WiFi) 539
via cellular phone (Bluetooth) 539
via vehicle's modem 540
Connect phone 529
Contact information 26
Convertible seats 69
coolant 671
INDEX
682
Lighting
Active Bending Lights 159
approach lighting 161
automatic high beam 157
automatic lighting controls, passenger
compartment 162
brake lights 160
controls 152, 162, 163
daytime running lights 154
display lighting 163
emergency brake lights 160
Hazard warning flashers 161
high beams 156, 157
home safe lighting 161
in passenger compartment 162, 163
instrument illumination 163
instrument lighting 163
low beams 155
position lights 154
rear fog light 159
settings 153
Turn signals 158
Lighting, replacing bulbs 624
Limp home 444
Load anchoring eyelets
cargo compartment 598
Load anchoring hooks 597
Load carriers 596
Load index 560
Loading
general595
load anchoring eyelets598
long load596
Lock indication 236
setting237
Locking/unlocking
Tailgate241, 255
Locking wheel bolts571
Locks
Locking240
unlocking240
Long-term storage428
Low battery charge level
start battery476
Low beams155
Lower the rear end596
Low oil level622
Low-speed driving460
activate with function button 461
M
Maintained climate comfort230
start/stop230
Maintenance608
corrosion protection654
Max. axle weight667
Max. roof load667
Media player514, 516
compatible file formats521, 522
voice control148
Messages and symbols
Adaptive Cruise Control308
Collision warner with auto-brake 348
Messages in BLIS354
Messages in display105, 140
handling106, 140
saved107, 141
Mileage89
electric motor465
Misting
condensation in headlights 648, 651
Mood lighting163