Tesla alert code · Driver assistance
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Tesla APP_w304 alert: Camera blocked or blinded
APP_w304
Camera blocked or blinded
Clean camera or wait for it to regain visibility
Information only
Top line is Tesla's on-screen wording. The level is RideRite's own read.
11 / 23
Teslas on RideRite's tools that have logged APP_w304
19
times it was recorded in all, as of September 2026
Short answer
One or more of the car's cameras reported a blocked view, from dirt, water, fog, condensation, glare or something covering it. Level: information only.
What APP_w304 means
One or more of the car's cameras reported a blocked view, from dirt, water, fog, condensation, glare or something covering it. Tesla's service description says this limits Lane Support features such as Lane Departure Avoidance and Side Collision Warning until the cameras can see again, and Tesla's owner's manual says the car is OK to drive and the issue is often temporary. Tesla's internal name for this alert is APP_w304_lssCamBlockedStatus.
What to do
- 1Clean the windshield in front of the rear-view mirror and the side and rear camera lenses.
- 2Check for condensation inside the windshield camera housing on humid mornings.
- 3If it repeats with clean cameras in good weather, have that camera inspected.
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Written review
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Ride Rite is a mobile Tesla repair shop based in San Jose. We diagnose camera and driver-assistance warnings in your driveway or office lot across the Bay Area with dealer-grade diagnostic equipment, then tell you plainly what the car needs.
Common questions
What does APP_w304 mean on a Tesla?
A camera was blocked or blinded, so camera-based safety features paused. Tesla's own fix text is to clean the camera or wait for it to see again.
Can low sun trigger APP_w304?
It can. Tesla's manual describes it as limited camera visibility from external conditions that clears once the condition passes, and direct glare into a camera is one of those conditions.
Related driver assistance alerts
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See pricing and book onlineSources: the alert text and internal alert name your car reports to Tesla, Tesla's owner's manual where the code is listed, and alert records from Teslas connected to RideRite's tools.
All Tesla alert codes explained
Ride Rite Mobile Auto Services is an independent mobile Tesla repair shop in San Jose, California. Not affiliated with Tesla, Inc. General information, not a diagnosis of your specific car. Updated September 2026.
