20 Most Recent 2013 GMC Terrain Questions & Answers

My 2012 gmc terrain has done this twice. Remote started to cool, got in car turned and turned key, out foot in bread to put from park to drive and it jerked forward and killed when I hit the gas. Moved about 2 inches. Then the next day (yesterday) I got in turned key and put foot on break to put from park to drive and put foot on has petal slowly and it jerked. Let off the gas and hit the gas again and it was fine. We are about to leave for a 5 hour trip. Is it safe? What's wrong? Will I get a check engine light? Worst case what happens? Thanks

If you're finding it difficult to service/repair your car, get one of those online manuals. You'll not have to wait for others to answer, or rely on mechanics and all. Plus i know a website that has very good manuals online, without expiry i.e. for lifetime. www.reliable-store.com

There is a procedure for this condition. GM says to flush the core with a cleaning agent they sale. I have found Lysol Fresh scent does a much better job of curing the condition.Spray the Lysol in the outside air intake vent while the vehicle is running with it set to max a/c and fan speed also on max. It will take about 1/4th can to fully clear the mildew smell and stop it from growth. When parking the vehicle always put it in max a/c position so the fresh air outside the vehicle will dry out the coil.

Has to be removed from inside the vehicle. Remove the covers and you can get to the assembly from inside.

Try the simplist first. Remote batteries good?

I would say you have a faulty pin switch under the hood. These can be purchased at radio shack and shouldn't be too hard to remove and reinstall.

Use this link to get info on your engine. Specifics are under the "Specification" tab. or the firing order is 1-2-3-4-5-6. link follows: http://gmauthority.com/blog/gm/gm-engines/lfw/

If you have a lift, they are pretty easy to get to from the bottom.

If key won't come out of ignition the problem is most likely park shift interlock. The park shift interlock is a device that won't allow vehicle to be started unless it is in park. Also the cable could be stuck.