Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2010SAVANA G2500, VAN CARGO EXTENDED, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1506 (AUTOMATIC TRANSMISSION - 2ML70 - DTC P0218 TO DTC P0965-P0967)DTC P0218CIRCUIT/SYSTEM VERIFICATION
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6
Circuit/System Verification
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6SECTION Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that the DTC sets outside of the Conditions for Running and Setting. Since most occurrences of this DTC are caused by Engine Overheating
, review with the customer the conditions under which the DTC set.
- If the DTC set within the Conditions for Running and Setting, the transmission is operating as designed.
- Perform the Transmission Fluid Check procedure.
- Operate the vehicle within the conditions that the customer experienced and verify the DTC does not reset.
- If the DTC resets, test for an overheating condition.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.