Just when ya thought it was safe to come out of the garage and play in the sun GEEESH! Sounds like those guys couldn't treat a customer right if your were the only one there.
I had similar experience -
the Last- time I went in to Discount Tire (a sister company to America's Tire). Only mine was the Tire Pressure Monitors. Went in for the a free tire air pressure check, low and behold, a bad TPM was found. Let them fix it. 2 days later low pressure warning dash light. Took it back they said yep "their" new monitor was bad. replaced it. 1 day later
dash light! They "fixed" that one (again this #2). Next day: Dash Light! Take it in and
surprise it now was a different wheel! So I bought one new monitor. Fix it once an' for all- I said to myself.
So with "my" new monitor+ the new monitor they installed =
2 new monitors. For those following along that leaves
2 original tire monitors on the truck.
Next day: Dash Light! They checked again and it was the tire with "their" newest monitor. They got another "new" monitor and replaced "their (now 3d) new monitor". Got in the truck to drive home: DASH LIGHT! The manager who was "working " with me on this checked and found "my" new monitor was at fault.
SHASBOT! Well it had been a week after all and it was Ok when they just checked the tires right before replacing this latest monitor.
So I took the truck down the road to a Firestone Dealer and just asked them to check my TPMs and they found the latest Discount tire monitor (just installed) was faulty!
I don't really have any clue as to how these things work, but it almost seemed that the tire store was going to 1)sell me all new monitors or 2) their tester was programed to find a fault no matter what or 3) they kept rotating the "bad monitor-tire" around.
So the up shot was I went to my Toyota dealer bought 3 new monitors ("my" new one on the truck still checked good) because they would be OEM approved- had them install them and
Ta-Da! no dash light
Whatever. Discount has lost a 20+ year customer and I'll find somebody else next time I need tires Regardless I'm sure I'm the only one to have had any problems with them an' I'm sure they are glad I wont be back to upset them any more.
Keep on Truckin' the sun will shine tomorrow- damn drought.