My car is eating away at my tires - 2006 Suzuki Reno

They all do that. when old.

no photos of the EATING look.
but miles on tires not stated. so.... cant speculate.

why not go to any alignment shop (free)
and ask?
sir, do my tries, look like they are wearing funny (badly) abnormal.
bingo? and is 100% Free, no guessing and bs

if its low mileage on tire, and not driving in turns, fast. like a wild man.(woman)
then the alignment is off. get it aligned.
or you have bad brakes causing ignored skidding?
is ABS lamp glowing running?

are you not keeping them inflated to spec, per the sticker on the driver door jamb?
bingo?

i had a buddy, that complained about tire wear.
found out he drove 70mph on gravel roads. (yes wild)
yah ,just never now what a driver does.

It can be issue with driving habits,or car is driven on rough road most of its time.,
Check out relative help links with solution to troubleshoot the problem:-----
What is Best Tire For the Vehicle? http://technoanswers.blogspot.in/2012/04/what-is-best-tire-for-vehicle.html

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1998 Toyota Camry: Tires Make Knock Rattling Noise Over Bumps? http://whatisbyme.blogspot.in/2012/05/1998-toyota-camry-tires-make-knock.html

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TIRE PRESSURE LIGHT COMING ON? http://whoisbyme.blogspot.in/2012/07/tire-pressure-light-coming-on.html

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Z-Rated tire For 1976 Corvette Stingray T-Top Coupe? http://schematicsdiagram.blogspot.in/2012/04/z-rated-tire-for-1976-corvette-stingray.html
----------- CARS: Working of tire pressure monitoring system http://technoanswers.blogspot.in/2012/10/cars-working-of-tire-pressure.html

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Do snow tires go on the back or front? http://howtobyme.blogspot.com/2012/01/do-snow-tires-go-on-back-or-front.html

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GMC ENVOY spare tire system stopped working? http://repairhelpcenter.blogspot.com/2012/01/gmc-envoy-spare-tire-system-stopped.html

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Front tires leaning IN? http://schematicsdiagram.blogspot.com/2011/12/front-tires-leaning-in.html

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These will help.
Thanks.

Keisha,

How many miles on these tires? Are they wearing on the outside edge, inside edge, or evenly across the tread? do you have them rotated regularly? Generally the number one cause of premature tire wear is improper inflation. Always use the tire pressure information on the sticker on the inside of your driver side door, not the "Max PSI" listed on the tire. The second cause is the wheels being out of alignment. Most tire shops will check the alignment for free. I usually suggest Firestone because they (to my knowledge) are one of the only shops left that do lifetime warranty alignments. Good luck and hope this helps.