Question about 2008 Chevrolet Cobalt
Couple of days ago, my boyfriend left my lights on my 08 Chevy Cobalt and my car battery was dead the next morning. Had my car battery jumped and all was fine but I had to go to dealership and get my keyfobs reprogrammed.
Right after they were reprogrammed, I was getting a "svc tire monitor" message and my car was not giving me my tire pressure readings. All the other readings like oil change, miledge etc.. work fine.
Went back to dealership and mechanic told me he has no idea of why my car is doing that. Wants me to bring car back and keep it half the day, said he may have to order a new part.
Internet says to press and hold reset button on insturment cluster for 4 seconds to reset tire monitor. Makes sense to me, but where is the reset button on this car?
The owners manual will not give the following information but chapter 3 around pges 40 -49 will tell you how to get into tire monito learning section. 1. Take all four valvestem caps off. 2. Find a tool such as a small diameter philips screwdriver that will work to let air out of the valvestem. A common aluminum 1/8" rivet (round end into valve stem) works very well. 3. Add air so that the tire pressures are all 40+ psi (do not exceed the tire's max. inflation rating on the sidewall). 4. Turn key to on position. 5. Apply parking brake. 6. Press and hold lock/unlock down at the same time (for about 3 seconds) on the key fob until the horn honks and left front park light flashes. Without keyless or remtoe entry fob use the Driver Information buttons on the left of sterring wheel. Press and hold bothe DIC and reset button at the same time for abot 10 seconds this will bring up the personal menu use DIC button to get to Tire monitor menu press and hold reset button untill horn honks and left front light flahes then continue with step 7. 7. Start at the LF tire. 8. Let air out for 4 seconds - count it out (one one-thousand, two one-thousand, three one-thousand, four one-thousand). 9. Wait for about 15 seconds* for the honk (sometimes it'll honk right away). 10. Repeat 7 and 8 for the RF tire. 11. Repeat 7 and 8 for the RR tire. 12. Repeat 7 and 8 for the LR tire. 13. With all four now done, the system will give it's final multi-honk completion note. 14. Use a quality gauge to set your final pressures (a good gauge will exactly match the sensor readings). 15. Replace all four valvestem caps. *If you've waited fifteen seconds for the honk and nothing has happened. Don't panic - Simply repeat 8 and 9 again as there is a two minute window to do each tire sensor.
Posted on Jun 10, 2009
Mine does the same thing...twice already....nothing wrong with tires..I just let it go off then when I turn the car on and off it disapears..seems a lot of HHR's have this same problem..I bought the car used with 30 thousand miles and no warranty so I refuse to pay the rip off dealers any extra....but I also check the tires to make sure right amount of air is in them.Too many electrial features in cars these days = more things to go wrong=more money for the dealers.....
Posted on Jul 17, 2012
I had the exact same issues when my car died...i took it to the dealership and they told me a computer chip was bad in my car and that is why the remotes and the 'service tire monitor' error came on...they want $400 do fix the computer chip...I told them 'no' bc i find it hard to believe that my car was fine until i left my lights on and the battery died and the RIGHT after that the remotes don't work and the error lights came on...it is such a coinsidence that during the time my car was dead my computer chip just so happened to cause these problems...no, i think they are trying to rip me off bc another dealer said i just had to reprogramm it...so...
Posted on Aug 27, 2012
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