What are the factory-set TPMS alarm thresholds (lower and upper alarms) on a 2009 Silverado crew cab Z71 4x4 with the 18 inch factory wheels and original TPMS sensors?
I've never had a TPMS alarm show in the DIC until yesterday, after installing a new PCM tune.
The Hypertech Max Energy 2.0 programmer seems to indicate the lower threshold is set at 25 psi. Dunno if that is what the factory setting was, or not. The Hypertech will apparently let me change the lower threshold, but I don't know what the stock setting was.
Now I am getting DIC alarms at 38-39 psi, which I never got before. I didn't even know there was an 'upper limit' alarm, and I've seen 42 psi on the DIC readout before, when it is 110F+ degrees in summertime. Because the tires are set at the factory recommended 35 psi cold and after highway driving over the abnormally-warm weekend we just had, they warm up to 39-40 psi. I'm using free air, not nitrogen.
Hi guys, prob a longshot but if anyone is interested in the OEM Z71 wheel/tire setup I have a full set that Id like to part with. If you want just the wheels or just the tires let me know. Tires are Goodyear SR-A 265/65R18
Ive had them for a year and 6 months and they saw 20k pavement miles. I didnt so any offroading or anything else rigorous. At most saw a couple of gravel driveways. The wheels and tires both are taken care of, do not have any rash. It was freezing cold the day i took the pics when they were taken off but if bought i will clean them up before coming to you. No tpms or valves, but do have the lugs.
Full album of pics here: https://imgur.com/a/6yeCp
Meetup will probably be out of the question as I have rarely seen anyone on the forum in MT.
Willing to ship but we both know it will be hefty, price wise.
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