What happens if I drive my GMC on a flat tire?

Driving on a flat tire is not a good idea. Your S15 engine will keep running with a flat tire, but you could damage your wheel by continuing to drive on a flat.

Will a temporary sealant fix my GMC's flat tire?

Fast fixes are a mixed blessing. They’ll help you get your GMC S15 to Firestone Complete Auto Care, but don’t count on them to keep you on the road for very long. Using a temporary sealant may also void a Bridgestone or Firestone tire warranty.

How long can I drive my GMC on a spare tire?

While this sounds great in theory, keep in mind that most spare tires are not designed for distance or speed. The compact spare tire that most likely sits inside your 1989 GMC S15 is intended for only a few days of use, so don’t use it as a substitute for getting your tire repaired.

Who can repair GMC S15 tires?

Your nearest Firestone Complete Auto Care is equipped to handle most GMC S15 tire repairs, but it depends on how severe the damage is.

What is causing the tires on my S15 to keep losing air?

Tire punctures, damaged wheels, and leaking valve stems are possible reasons for your S15 tires continuously losing air.

Can I replace just one or two tires on my GMC S15?

When replacing the tires on your S15, it's best to err on the side of caution and replace them in pairs or all four at once. Worn tires can compromise your car's handling and braking, especially if they're paired with newer tires. Refer to your owner's manual to determine whether your vehicle requires all four tires to be replaced if there's a tread difference.

Tire Repair for Your 1989 GMC S15

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Shop for GMC S15 Tires

It’s best to introduce yourself to new roads with a firm grip. Find the best tires for your GMC S15 at Firestone Complete Auto Care, and schedule your installation appointment online in minutes.

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Repairing Your GMC S15 Tire

City populations are exploding. New roads are being built, and old ones are getting a face lift. There's construction around every corner! That means more tire-damaging road debris and flat tires. If your 1989 GMC S15 is in need of a tire inspection or possible flat tire repair, Firestone Complete Auto Care has your back. Our tire technicians can determine whether it's safe to plug and patch the tire, or whether it needs to be replaced. To start, we’ll consider the location of tire damage, the type of issue, the size and scope of the damage, and the amount of wear on your tires.

If we determine that your 1989 GMC S15 tire can be safely repaired, the repair process is actually fairly simple: (1) Separate the tire from the vehicle wheel, (2) fill the puncture to keep the moisture out, and (3) seal the inner liner with a repair unit to prevent air loss.

Tire Replacement for Your GMC S15

Unfortunately, some 1989 GMC S15 tire damage can’t be effectively repaired. For tires that have less than 2/32nd inch of tread left, a repair simply isn’t possible – even if the tire damage is minimal. Tires with this tread depth or less are no longer safe, so it’s time to replace the damaged tire. Some tire issues are easy and straightforward to repair, but other kinds of tire damage can’t be properly repaired. Tire damage that can’t be repaired effectively include a tire with a puncture larger than ¼ inch in diameter; a puncture in the tire sidewall (or anywhere else that’s not within the tread area); a tire with two or more punctures that are less than 16 inches away from each other; and a tire with cuts or tread separation.

Depending on what GMC recommends for your car, you’ll want to consider purchasing one new tire, two new tires, or a new full set. For vehicles with AWD, manufacturers recommend replacing all four tires simultaneously. This is because the AWD system can only function optimally when all tires are uniform. But, if you’ve recently replaced your tires and they don’t have significant wear, a new set might not be needed. You might be able to replace one tire as long as it's the same brand, type, and size as the other three. Still not sure how many tires to replace or what kind to buy? A trained tire technician at Firestone Complete Auto Care is ready and waiting to answer your questions.

GMC S15 Tire Inspection

A flat tire is a surefire sign of tire damage, but other indicators of tire issues aren’t so easy to spot. Bent tire rims, bulging tire sidewalls, leaks under your car, or noise from your exhaust system can all point to tire-related damage that should be addressed quickly. Stay ahead of potentially dangerous tire issues. Bring your 1989 GMC S15 in for a tire inspection.

GMC S15 Tire Repair Questions

What happens if I drive my GMC on a flat tire? Driving on a flat tire is not a good idea. Your S15 engine will keep running with a flat tire, but you could damage your wheel by continuing to drive on a flat.
Will a temporary sealant fix my GMC's flat tire? Fast fixes are a mixed blessing. They’ll help you get your GMC S15 to Firestone Complete Auto Care, but don’t count on them to keep you on the road for very long. Using a temporary sealant may also void a Bridgestone or Firestone tire warranty.
How long can I drive my GMC on a spare tire? While this sounds great in theory, keep in mind that most spare tires are not designed for distance or speed. The compact spare tire that most likely sits inside your 1989 GMC S15 is intended for only a few days of use, so don’t use it as a substitute for getting your tire repaired.
Who can repair GMC S15 tires? Your nearest Firestone Complete Auto Care is equipped to handle most GMC S15 tire repairs, but it depends on how severe the damage is.
What is causing the tires on my S15 to keep losing air? Tire punctures, damaged wheels, and leaking valve stems are possible reasons for your S15 tires continuously losing air.
Can I replace just one or two tires on my GMC S15? When replacing the tires on your S15, it's best to err on the side of caution and replace them in pairs or all four at once. Worn tires can compromise your car's handling and braking, especially if they're paired with newer tires. Refer to your owner's manual to determine whether your vehicle requires all four tires to be replaced if there's a tread difference.

Repair Services for Your 1989 GMC S15

Nothing lasts forever. Even your GMC S15's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 1989 GMC S15 repairs.