A diagnostic test can determine if the spark plugs are the reason the check engine warning light has come on. Plug the obd scan tool into the open port.

How To Reset A Check Engine Light

How to diagnose and reset gmc check engine light.

2016 gmc sierra check engine light reset. If the check engine light in your 2016 chevy silverado starts flashing that means that the problem needs abrupt attention and your chevy should be brought in immediately. Once you locate the battery the method for clearing the code is the same regardless of the year make or model of gmc vehicle. The check engine light does not provide much information.

Turn the ignition to the ii position the on position but do not try to crank the engine. Unable to crank return to work return in 3 hours reinstall old gas cap check fluid levels ok. A flashing light indicates that the problem is precarious and if not taken care of immediately may result in abundant damage to the.

Crank engine let run for 5 minutes check engine light still on wait one hour crank engine back to normal check engine light off engine run ok drive short test drive. Locate the open obd port to the left of the fuse panel in the driver s side foot well. Our cardinale gmc service technicians can replace your spark plugs and reset your vehicle s computer.

Crank engine let run kill engine. Gmc specializes in sport utility vehicles trucks and vans. 2016 chevy silverado check engine light.

If your gmc vehicle sets off a fault code also known as a check engine code resetting the code after the repair has been made is a simple process. Disconnecting the battery like this may reset your car s electrical system and erase the error code that s causing the check engine light to stay on. Turn on the ignition but do not start the engine.

Plug the scanner into the obd ii port. Press on the horn for 30 seconds to drain any remaining electricity then wait 15 minutes before reconnecting the battery cables. If your vehicle s oxygen sensor is faulty it may trigger the check engine to come on.

To find out why your gmc check engine light is on read the fault codes with an obd ii scanner. Locate the obd ii port under the dashboard. Press erase on the scan tool to erase all computer codes and reset the check engine light.