Volvo V90 Warning Lights: What They Mean

Red: stop or act now

Alarm indicator

Off means disarmed; flashing once every two seconds means armed; quick flashing means the alarm has been triggered. PDF page 271

Other warnings and indicators

Fault in brake system

The brake fluid level may be too low.
What to do: Contact your nearest authorized workshop to have the brake fluid level checked and adjusted. PDF page 100

Low oil pressure

If lit while driving, the engine oil level is too low.
What to do: Stop the engine immediately and check the oil. Add oil if needed. If oil level is normal, contact a workshop. PDF page 100

Airbags

If it stays lit or comes on while driving, a fault has been detected in one of the vehicle's safety systems.
What to do: Read the message in the instrument panel. Volvo recommends contacting an authorized Volvo workshop. PDF page 100

Generator not charging

A fault has been detected in the electrical system while driving.
What to do: Contact a workshop; an authorized Volvo workshop is recommended. PDF page 100

Fault in ABS system

The ABS system is malfunctioning. The regular brakes still work, but without ABS function. PDF page 97

Fault in brake system

There is a problem with the parking brake. PDF page 97

Parking brake on

Steady when the parking brake is applied. Flashing indicates a fault has occurred.
What to do: If flashing, read the message in the instrument panel. PDF page 100

Tire pressure monitoring system

Tire inflation pressure is low. If the system malfunctions, the symbol flashes about a minute, then glows steadily.
What to do: Stop and check your tires as soon as possible and inflate them to the proper pressure. PDF page 541

Alarm system failure

A problem has been detected in the alarm system; a symbol and message appear in the instrument panel.
What to do: Contact a workshop; an authorized Volvo workshop is recommended. PDF page 271

OWS indicator light

Stays on if the occupant weight sensor system has a fault, along with the SRS light. Passenger front airbag will not deploy.
What to do: Have the SRS system and Occupant Weight Sensor inspected by a qualified Volvo technician as soon as possible. PDF page 59

Information symbol

A vehicle system requires the driver's attention; a message is shown in the instrument panel.
What to do: Read the message in the display. PDF page 97

Collision risk

City Safety warns of a risk of collision with another vehicle, pedestrian, cyclist or large animal. PDF page 100

Auto-brake on

The function is activated and the brakes or parking brakes are holding the vehicle at a standstill after stopping. PDF page 97

Summarized in our own words from the 2019 Volvo V90 owner's manual (AI-assisted; every light name was matched against its cited page 2026-10-18). Your vehicle may not have every light, and other years can differ. A red warning that stays on usually means stop safely and check: your manual has the final word.