Re: Possessed 2008 Liberty: Honking and Squirting at will!
This same problem happened to me with an 08 Jeep Liberty I purchased this summer. There was a 30-day warranty on the vehicle, and it first acted up with the horn going, back and front wipers going, and windshield wiper fluid spraying like crazy on day 27 of 30. I called the dealership right away from the side of the road about the problem and brought it in the next day. I did research the night before and found all the information regarding the TIPM giving trouble in a lot of 08 Libertys, so I mentioned it to the mechanic there. Since it was a Chevy dealership, he said "I'm not very familiar with what that is..." and put in zero effort to look up what I was talking about. He tried to run a diagnostic test to find the problem, but this issue isn't something that will spark a code--which he should have known. I left with the car dealer calling me a "worry wart", that I shouldn't drive any differently (I was hesitant to use cruise control, thinking this somehow sparked the problem) otherwise there's no point to have the vehicle, and to let them know if it happens again and "they'll take care of me". Fast forward two days, the electrical issue happened again, but this time, I filmed the event on my phone to bring in to the dealer. When I went back in, I printed off multiple stories I found online regarding the TIPM causing the problem, a picture of the TIPM, and how to replace it. I dropped my car off with these details and told them if they didn't know how to properly fix my vehicle, since they're a Chevy dealership, they need to send my vehicle to a place that deals with Jeeps. They did send it to a jeep dealership. The car mechanic from the Chevy dealer called to tell me the mechanic agreed with my TIPM argument, and would look into getting one. The next time he called, he said the Jeep dealership couldn't prove this was the problem, so they weren't going to replace it. They did, however, give me a new battery since "they walked out to my car in the morning, and had to jump it since it was completely dead" and low voltage may cause communication problems--leading to my problems. I KNEW this wasn't the issue, but gladly went in to pickup my vehicle with the new battery and told them I was sure I would be back soon, since I didn't have confidence in what they did. As expected, the electrical freak-out happened again. I brought it to the dealer for the third time and told them I don't care what it takes, but they either need to fix my car or give me a new one and deem my car a lemon (as I was under warranty). FINALLY the Chevy dealer mechanic called and said he was going to replace the TIPM, as I had been requesting since day one. Flash forward 3 months after they replaced the TIPM, I've had NO problems with my car freaking out!!! I don't know why they avoided replacing the part for so long, because they just ended up incurring at least $700 in extra expenses for fixing things that I knew wouldn't fix the problem...
Long story short: Replace your TIPM to stop your car from freaking out. This issue won't throw a code (since it's not something your car is set up to be monitoring, unlike air pressure or engine leaks)-so technically can't be "proven". If you're paying for it, just go for the TIPM-if the dealership is paying for it under warranty: keep on their tails until they actually fix the problem and don't let them dumbly dance around the proper solution.