Tire Pressure Very Low — Pull Over Safely and Check for a Flat
The TESLA-VCSEC_a228 (VCSEC (Vehicle Controller Security)) EV fault code means: Tire Pressure Very Low — Pull Over Safely and Check for a Flat. This is a critical severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- moderate
A $30 car code reader can't do diesel. The HD7000 reads full-system codes and does parked DPF regen, idle/speed-limit, and service resets from the cab — on everything from a 6.7 Cummins/Power Stroke/Duramax pickup to Class-8 trucks (Detroit, Paccar, CAT, Volvo, Mack, International).
Full-system 6/9/16-pin diesel scan tool for Cummins, Paccar, CAT, Detroit and more — plug-and-play, no subscription. A cheaper way to read heavy-duty codes a basic OBD2 scanner skips entirely.
Affiliate links — we earn a commission at no extra cost to you.
What Are the Symptoms of TESLA-VCSEC_a228?
- Alert that one or more tires is extremely low or flat
What Causes TESLA-VCSEC_a228? (Most Likely First)
- One or more tires is extremely low or flat: TPMS reads it significantly below the recommended cold pressure Very Likely
Can I Still Drive with TESLA-VCSEC_a228?
No — stop driving. TESLA-VCSEC_a228 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
What does Tesla alert VCSEC_a228 mean?
The same message as UI_a013 in Tesla's manual: a tire is extremely low or flat. Pull over safely and check for a flat tire.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose TESLA-VCSEC_a228?
Pull over carefully as soon as possible, as Tesla instructs.
In a safe location, check for a flat tire. Tesla roadside assistance can be requested if needed.
Inflate to the recommended cold pressure. The Model 3, Y, S and X manuals say this alert clears once each tire reads at least 30 psi consistently (Cybertruck: once no tire is significantly below the recommended cold pressure); drive over 15 mph (25 km/h) for at least 10 minutes for new readings.
Sources 3
This page is built from documented references. Verify against your own service info before repair work.
- Tesla Model 3 Owner's Manual (2024+, North America, software 2026.20), Troubleshooting Alerts, printed p.304: VCSEC_a228, "Air pressure in tires very low / PULL OVER SAFELY - Check for flat tire"
- Tesla Cybertruck Owner's Manual (online edition, read 2026-10-23), Troubleshooting Alerts: VCSEC_a228
- Tesla alert dictionary (canonical firmware alert identifiers)community-maintained dictionary, not an official manufacturer document
Which Vehicles Commonly Get TESLA-VCSEC_a228?
- Tesla Model 3 (RWD, Long Range AWD, Performance)
- Tesla Model Y (LR AWD, Performance)
- Tesla Model S (LR, Plaid) -- less common, uses different entry system
- Tesla Model X (LR, Plaid) -- less common, uses different entry system
- Tesla Cybertruck (RWD, AWD, Cyberbeast) -- early production units reported NFC pairing issues
Explore More
Was this helpful?
Send this to whoever is fixing the truck — your tech, or the person asking what the fault means.