Volvo XC90: Key, locks and alarm / Electronic immobilizer
The electronic immobilizer is a start inhibitor that helps prevent the vehicle
from being started by an unauthorized person.
The vehicle can only be started with the right remote key.
The following instrument panel error messages are related to the electronic immobilizer:

Remote immobilizer with tracking system
(Only certain markets and in combination with Volvo On Call.)
The vehicle is equipped with a system that makes it possible to track and locate
the vehicle and to remotely activate the immobilizer to prevent the vehicle from
being started. Contact your nearest Volvo retailer for more information and assistance
activating the system.
The following instrument panel error messages are related to the remote immobilizer
with tracking system:

The detachable key blade can be used to unlock the vehicle from the outside,
e.g. if the battery in the remote key is discharged.
Unlocking
Pull the front left-hand door handle
to its end position to access the lock cylinder...
The following information contains type designations for the start and lock
system.
Alarm system
USA FCC ID: MAYDA 5823(3)
This device complies with part 15 of the FCC rules...
Other information:
Specifications for replaceable light bulbs. If you are experiencing problems
with any lights other than light bulbs, contact a workshop1. If there
is a problem with an LED2 light, the entire lamp unit will normally need
to be replaced.
A Watt
1 An authorized Volvo workshop is recommended...
In certain situations, it may be difficult for City Safety to help the driver
avoid a collision with crossing traffic.
For example:
On slippery roads when Electronic Stability Control (ESC) is actively operating.
If an approaching vehicle is detected at a late stage...