How to Make Remote Start Work with a Check Engine Light On

Most modern vehicles are equipped with remote start features, allowing you to start your car remotely even when you're not physically present. However, if your check engine light is on, it might seem impossible to use this feature. Don't worry; there are steps you can take before resorting to more advanced solutions or consulting a mechanic.

Check the Manual

Every vehicle makes and model come with a unique set of instructions and troubleshooting steps. Refer to your vehicle's manual for specific guidance on the remote start function, as what works for one car may not work for another.

Follow the Correct Starting Procedure

Ensure you are following the correct starting procedure for your remote start system. Typically, you should:

Press the lock button once Hold the remote start button for at least 2 seconds (until the turn signal lamps flash)

Ensure the Vehicle is in Park

Some remote start systems require your vehicle to be in Park for safety reasons. Make sure the transmission is in Park position before beginning the remote start process.

Check Coolant and Oil Pressure

If the engine coolant temperature is too high or the oil pressure is too low, the remote start may be disabled. Allow the vehicle to cool down for 5-10 minutes and check the coolant and oil levels before retrying the start procedure.

Ensure the Hood is Firmly Closed

Check that the hood is firmly closed and latched before attempting to use the remote start function. An unlatched hood can trigger the failure of the remote start process.

Turn Off Hazard Warning Lights

Your hazard lights being on may disable the remote start system for safety reasons. Turn off the hazard lights and retry the remote start procedure.

Remove the Key(1)

Make sure the key is not inside the vehicle when attempting to use the remote start function. Removing the key can sometimes resolve the issue.

Replace the Dead Keyfob Battery

As a last resort, if the issue persists, try replacing the keyfob battery. Most keyfobs use a CR2032 lithium cell watch-type battery. You can replace the battery using a diagram provided in the vehicle's manual.

While these steps can help, it's important to note that they may not work in all cases, especially if there is a persistent issue causing the check engine light to come on. Having the underlying problem diagnosed and fixed by a qualified mechanic is the best course of action to ensure the proper functioning of your vehicle.

References:

Remote Start Not Working: 10 Things to Check - Markville Chevrolet Need to bypass check engine light for automatic starter: Chevrolet Cruize Forums Remote start and check engine light: 5thGenRams Forums