- Vehicles
- Cars
Camera blocked or blinded
Tesla 'Camera blocked or blinded' in car: APP_w304 alert
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
Alert APP_w304 ('Camera blocked or blinded') on a Tesla Model 3 means one or more cameras have limited or no visibility due to dirt, weather, glare or condensation, so Self-Driving features may be temporarily unavailable. Your car is OK to drive manually while you clean or demist the cameras.
Safety first
Stop and check this first
- While APP_w304, APP_w222 or APP_w396 is active, Autosteer, Traffic-Aware Cruise Control and other Self-Driving features may be limited or unavailable: always steer and control speed yourself.
Safe checks you can perform
- Drive manually to your destination and clean the lenses
- Clear enclosure condensation using cabin climate
- Check Controls > Service > Maintenance on the touchscreen
Leave these tasks to a qualified professional
- Do not attempt this professional task: Interior windshield camera enclosure cleaning
- Do not attempt this professional task: Camera and enclosure seal diagnosis
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Interior windshield camera enclosure cleaning
What they doTesla Service accesses the inside of the front camera enclosure on the windshield and removes the hazy residue layer without disturbing the camera optics.
They must show youthe inside windshield glass in front of the cameras free of haze and mist.
In writingthe cleaning performed on the front camera area and the alert codes verified.
Camera and enclosure seal diagnosis
What they doIf APP_w304 or APP_w222 persists across drives with no visible obstruction or condensation, the technician tests the affected camera, its enclosure seal and calibration.
They must show youwhich specific camera logged the visibility fault and that camera feed and calibration now pass.
In writingthe camera inspected or replaced, the stored alert code and the post-repair verification result.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Drive manually to your destination and clean the lenses
- Who:
- you, once the Model 3 is safely parked before your next drive.
- How:
- continue driving manually to your destination, then inspect and gently clean the camera surfaces and the top centre area of the windshield for dirt, ice or wiper streaks.
- Result that matters:
- removing external dirt or debris that triggered APP_w304, APP_w222 or APP_w396.
- If dirt or streaks were present and the alert clears on the next trip:
- it was an external obstruction.
- If the outer lenses are clean and the alert remains:
- check the enclosures for internal condensation.
- Evidence to keep:
- a photo of the camera surface before cleaning and a screenshot of the touchscreen alert.
Evidence: Tesla Model 3 owner manual: troubleshooting alerts
Clear enclosure condensation using cabin climate
- Who:
- you, using the climate controls in the car or the Tesla app.
- How:
- turn Climate ON, set cabin temperature to High, make sure A/C is ON, switch on the front windshield defroster and point the air vents toward the door pillar cameras.
- Result that matters:
- speeding up evaporation of mist inside the front or pillar camera enclosures that cannot be wiped by hand.
- If the mist clears and assistance features return on your next drive:
- no workshop visit is needed.
- If the alert persists through your next planned drive despite cleaning and demisting:
- check the maintenance screen.
- Evidence to keep:
- a note of how long you preconditioned the cabin and a photo if mist is visible inside the enclosure.
Evidence: Tesla Model 3 owner manual: troubleshooting alerts
Check Controls > Service > Maintenance on the touchscreen
- Who:
- you, on the touchscreen while parked.
- How:
- open Controls > Service > Maintenance to review the Maintenance Summary and see whether the car needs cleaning on the inside of the windshield camera area (APP_w396).
- Result that matters:
- confirming whether Tesla Service needs to clean hazy film from inside the front camera housing.
- If the summary flags inside windshield camera cleaning or the alert repeats with no visible blockage:
- book service.
- If no maintenance item appears and the alert stays away on clear roads:
- it was a temporary environmental condition.
- Evidence to keep:
- a photo of the Maintenance Summary screen and the active alert log.
Evidence: Tesla Model 3 owner manual: troubleshooting alerts
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Vehicles
- Brand
- Tesla
- Product type
- Cars
Known code variants
- APP_w222
- APP_w304
- APP_w396
- Cámara bloqueada o cegada
- Camera blocked or blinded
- Clean camera or wait for it to regain visibility
- Front camera visibility limited
- Limpie cám. o espere que recupere visibilidad
- Reduced front camera visibility
- Visibilidad de la cámara delantera limitada
- Visibilidad de la cámara delantera reducida
What it means
In the Tesla Model 3 owner's manual, alert APP_w304 ('Camera blocked or blinded - Clean camera or wait for it to regain visibility'), together with related front-camera alerts APP_w222 ('Reduced front camera visibility') and APP_w396 ('Front camera visibility limited' from hazy windshield residue), means the cameras cannot supply clear visual data, so Traffic-Aware Cruise Control, Autosteer or other Self-Driving features are limited or unavailable. The car remains OK to drive. The alert alone never proves a camera unit has failed.
Warnings and stop conditions
- Mediumsource verified
While APP_w304, APP_w222 or APP_w396 is active, Autosteer, Traffic-Aware Cruise Control and other Self-Driving features may be limited or unavailable: always steer and control speed yourself.
Evidence: Tesla Model 3 owner manual: troubleshooting alerts
Symptoms and causes
Probable causes · in order
- Dirt, weather, glare or low-light road conditionsCommon
Tesla lists dirt or debris on the lens, rain, fog, snow, dew, bright sunlight or headlight glare, unlit night roads and monotonous tunnel walls or dividers.
Evidence: Tesla Model 3 owner manual: troubleshooting alerts
- Condensation inside the camera enclosurePossible
Under APP_w304 and APP_w222, the manual notes that water droplets or mist inside the front camera or door pillar camera enclosures can block the view.
Evidence: Tesla Model 3 owner manual: troubleshooting alerts
- Hazy residue or wiper streaks on the windshieldPossible
For APP_w396, the Model 3 detects a layer of hazy residue on the windshield camera area or streaks left by the wipers across the front glass.
Evidence: Tesla Model 3 owner manual: troubleshooting alerts
Virtual technician
Does Camera blocked or blinded still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
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