Updated Editor reviewedBy CarFaultIQ Editorial Team
At a glance
Immediate warning-light answer
This light means the vehicle believes a door, bonnet or tailgate is not fully latched. When it stays on with everything visibly closed, the fault is usually the latch switch rather than the door.
This light means the vehicle believes a door, bonnet or tailgate is not fully latched. When it stays on with everything visibly closed, the fault is usually the latch switch rather than the door.
Possible system
Body & Interior
Urgency
Low (not yet verified)
Imported default, pending review
Can I drive?
Drive with caution
Drive with caution until you have confirmed every opening is genuinely latched — a door reported as ajar may actually be ajar, and a door that opens while moving is a serious hazard.
Evidence/confidence
Editor reviewed
Editorial review
If this light appears with brake, steering, airbag, overheating, oil pressure, fuel, smoke, or fire symptoms, treat it as safety-critical.
Short answer
This light means the vehicle believes a door, bonnet or tailgate is not fully latched. When it stays on with everything visibly closed, the fault is usually the latch switch rather than the door.
SeverityModerateDrive?Drive with caution
Key takeaways
Confirm the opening physically before assuming it is only a sensor.
A persistent door-ajar signal can keep modules awake and flatten the battery.
Can I still drive with this?
Drive with caution
Drive with caution until you have confirmed every opening is genuinely latched — a door reported as ajar may actually be ajar, and a door that opens while moving is a serious hazard.
SeverityModerate
Moderate
Explore vehicle evidence related to this system
Choose your vehicle to see how often owner complaints and official records for it concern Doors, latches & locks, and in which model years.
This shows records about a system, not whether a particular car has this problem.
Door ajar light
This light means the vehicle believes a door, bonnet or tailgate is not fully latched. When it stays on with everything visibly closed, the fault is usually the latch switch rather than the door.
Common triggers
A door, tailgate or bonnet genuinely not fully closed
A worn or contaminated latch switch reporting open when the door is shut
A wiring fault in the door harness, which flexes every time the door opens
What to check
Open and firmly close each door, the tailgate and the bonnet in turn, watching whether the light clears
Check the message centre, which on most vehicles names the specific opening
Inspect the latch mechanism for dirt or corrosion and confirm it moves freely
Have the door harness checked if the fault comes and goes with door movement
What this light means
This light means the vehicle believes a door, bonnet or tailgate is not fully latched. When it stays on with everything visibly closed, the fault is usually the latch switch rather than the door.
Possible systems involved
body
Common triggers
A door, tailgate or bonnet genuinely not fully closed
A worn or contaminated latch switch reporting open when the door is shut
A wiring fault in the door harness, which flexes every time the door opens
Check this before driving
Open and firmly close each door, the tailgate and the bonnet in turn, watching whether the light clears
Check the message centre, which on most vehicles names the specific opening
Inspect the latch mechanism for dirt or corrosion and confirm it moves freely
Have the door harness checked if the fault comes and goes with door movement
Frequently asked questions
All the doors are shut but the light stays on — is it just a sensor?
Usually, but confirm physically before assuming it. Several safety recalls have concerned latches that appear closed while not being fully engaged.
Why does it drain the battery?
The vehicle often keeps interior lighting and some modules awake while it believes a door is open, which over several days can flatten the battery.