Volvo XC40 2021 Owner's Manual page 398

STARTING AND DRIVING
Conditions for the Start/Stop
function
Certain conditions must be met for Start/
Stop to function.
If any condition is not met, this will be indi-
cated in the instrument panel.
The engine does not auto-stop
The engine will not auto-stop if:
The vehicle has not reached a speed of
•
ca 10 km/h (6 mph) after starting.
After several auto-stops, the speed must
•
again exceed approximately ca 10 km/h
(6 mph) before the next auto-stop.
The driver has not fastened the seatbelt.
•
The engine is not running at its normal
•
operating temperature.
The ambient temperature is under
•
approximately -5 °C (23 °F) or over
approximately 37 °C (98 °F).
Windshield heating is activated.
•
The climate system settings and the
•
actual climate in the passenger compart-
ment differ.
The vehicle is in reverse.
•
The driver is making large steering wheel
•
movements.
The road gradient is very steep.
•
The hood is open.
•
396
Driving at high altitude and the engine has
•
not reached its normal operating tempera-
ture.
ABS has been activated.
•
Hard braking (even if the ABS system has
•
not been activated).
Many starts during a short period of time
•
have triggered the starter motor's over-
heating protection.
The exhaust system's particulate filter is
•
full.
A trailer is connected to the vehicle's elec-
•
trical system.
The transmission is not running at its nor-
•
mal operating temperature.
The gear selector is in mode M (±).
•
If traffic conditions allow it (for example in
•
a traffic jam).
The engine does not auto-start
The engine will not auto-start after an auto-
stop 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 if the brake pedal is
depressed:
High levels of condensation on the inside
•
of the windows.
The climate system settings and the
•
actual climate in the passenger compart-
ment differ.
The brake pedal is pumped repeatedly.
•
The hood is open.
•
The vehicle begins to roll or increases
•
speed slightly if the engine auto-stopped
before the vehicle was at a standstill.
The driver's seat belt is unbuckled with the
•
gear selector in the D or N positions.
The gear selector is moved from D to R or
•
M (±).
The driver's door is opened with the gear
•
selector in D. An audible signal and a text
message informs the driver that the igni-
tion is on.
WARNING
Do not open the hood if the engine has
auto-stopped. Turn off the engine by
switching off the ignition before lifting the
hood.