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P0457 on Tesla Model X

EVAP System Leak Detected (Fuel Cap Loose/Off)

Factory diagnostic protocol and troubleshooting wire for fault code P0457 specifically for the Tesla Model X (2020–2026, Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors)).

Verified OEM Telemetry & Field Repair Tree
Tesla Model X2020–2026
Tesla Model X
EVDual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Model X SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Low urgency level
Est. Repair Cost
$0 - $120 (DIY: $0 - $30)
Parts & Labor DIY
Check P0457 On Another Tesla Model:
Diagnose P0457 on Specific Model X Model Year:

1. Symptoms of P0457 on Tesla Model X

When the Engine Control Module (ECM/PCM) on your Tesla Model X (Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors)) logs fault code P0457, drivers commonly observe:

'CHECK FUEL CAP' message in dash display on Tesla Model X (Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors))
Illuminated Check Engine Light on Tesla Model X (Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors))
Slight gasoline vapor odor near fuel door on Tesla Model X (Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors))
Tesla Model X OBD-II Port Location
The 16-pin diagnostic connector is located Driver side lower instrument panel trim. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Tesla Model X

Historical warranty claims and technical repair bulletins for Tesla Model X point to the following failure distribution:

55%
Loose, unclicked, or forgotten gas cap (Tesla OEM Part)
25%
Cracked, dried out, or missing rubber O-ring gasket on fuel cap (Tesla OEM Part)
12%
Cracked filler neck neck where gas cap seals (Tesla OEM Part)
8%
Faulty EVAP fuel tank pressure sensor (FTP) (Tesla OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Tesla Model X.

3. Step-by-Step DIY Repair Guide for Tesla Model X

01
Inspect and Tighten Gas Cap

Unscrew gas cap, inspect rubber seal for cracks, reinstall and turn until it clicks firmly 3 times. on the Tesla Model X equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors).

Required Tool: None
02
Inspect Fuel Filler Neck Lip

Check the metal filler neck lip for rust, grit, or dings preventing a tight seal. on the Tesla Model X equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors).

Required Tool: Clean Rag
03
Replace Gas Cap with OEM Replacement

If rubber gasket is flattened or hardened, buy a factory OEM gas cap. on the Tesla Model X equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors).

Required Tool: OEM Gas Cap
04
Clear Trouble Code or Drive

Clear DTCs with scanner, or drive vehicle for 3–5 days until the PCM runs an overnight EVAP vacuum decay test and turns off the light automatically. on the Tesla Model X equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Tesla Model X (P0457)

Prime Fast Delivery & Verified Fitment
EVAP Seal Replacement

OEM Tethered Fuel Gas Cap with O-Ring

4.7 / 5.0 (Direct Fit)

Tight-sealing factory fuel cap resolves common EVAP small/large leak codes without workshop visits.

$17 – $26 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Tesla Model XVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
Find Parts on Amazon
* As an Amazon Associate, MazicBay earns from qualifying purchases. Prices & availability subject to change.

Other Common Fault Codes on Tesla Model X

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Tesla Model X:

4. Tesla Model X P0457 FAQs

What causes code P0457 to trigger on a Tesla Model X?

On the Tesla Model X (Dual Motor AWD / Tri-Motor Plaid (1,020 HP Falcon Wing Doors)), P0457 is most frequently caused by Loose, unclicked, or forgotten gas cap or Cracked, dried out, or missing rubber O-ring gasket on fuel cap.

Where is the OBD-II port located on my Tesla Model X?

On the Tesla Model X, the 16-pin DLC diagnostic connector is located Driver side lower instrument panel trim. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Tesla Model X with code P0457?

Yes. Safe to drive indefinitely, but fuel vapors escape into the atmosphere. Given that P0457 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.