⚠️ Chevrolet manufacturer position
GMSI documents fuel module access under rear seat or cargo on D2XX Equinox. Contamination excluded from warranty.
Vehicle information
| Make | Chevrolet |
|---|---|
| Model | Equinox |
| Market status | Sold new in the US 2005–present |
| Body styles | Compact crossover SUV |
| Generations | Theta, D2XX (2018–present) |
| Engine options | Gasoline: 1.5L turbo, 2.0L turbo, and earlier four-cylinder/V6 offerings Diesel: 1.6L diesel briefly offered (~2018–2019 US)—rare in fleet Electric: Equinox EV (no fuel tank) |
| Fuel tank capacity | 14.9 gal (typical gasoline) |
| Fuel system | Gasoline direct injection on recent US models |
| Access method | Fuel pump access panel (typical D2XX) |
| Anti-siphon | Yes |
| Service portal | GM Service Information (GMSI) / ACDelco TDS |
Misfuel risk Moderate
Most US Equinox models are gasoline; rare diesel models elevate gasoline-in-diesel risk if mis-fueled.
If the engine was not started
Ignition off; drain before starter primes fuel line.
If the engine was started
Replace filter and inspect injectors; scan for fuel trim DTCs.
Access procedure
- Depressurize the fuel system per GM service information; disconnect battery negative.
- Access fuel module via under-seat/trunk panel or perform tank lowering if required for the platform.
- Disconnect electrical connector and fuel line fittings; use line plugs as specified.
- Remove lock ring and lift module; extract wrong fuel with approved recovery equipment.
- Inspect tank and lines; replace filters if contamination reached the engine supply circuit.
- Reinstall module with new seal; verify connections and perform leak check.
- Prime system and clear DTCs per GMSI before returning vehicle to service.
Notes
- Equinox EV is battery-electric—separate OEM page when applicable.
Related models
- GMC Terrain
- Chevrolet Blazer
Frequently asked questions
Was the Equinox ever a diesel in the US?
A 1.6L diesel was sold in limited US model years. Most Equinox on the road are gasoline—check the fuel door.
What gasoline should I use after a drain?
Use the octane on the fuel door label once the tank is cleaned and verified.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
Find an operator Consumer guidance