* Tire size: Your Trailblazer likely came with different tire sizes depending on the trim level and options. The sticker on your driver's side doorjamb will specify the recommended tire pressure for your *specific* tire size.
* Load: The pressure may be different if you're carrying a heavy load. The doorjamb sticker usually provides information about adjusting tire pressure for heavier loads.
* Tire condition: Over time, tires can lose air. Always check your pressure regularly, even if it's recently been inflated.
Where to find the correct information:
1. Driver's side doorjamb sticker: This is the *most reliable* source of information. Look for a sticker that lists the recommended tire pressure for your vehicle's specific tire size and load.
2. Owner's manual: Your owner's manual will also have a section detailing recommended tire pressures. However, always prioritize the sticker on the doorjamb.
Do not rely on generic answers online. The pressure listed on the tire sidewall is the *maximum* pressure the tire can handle, not the recommended pressure for your vehicle. Using the incorrect tire pressure can impact your vehicle's handling, fuel economy, and tire wear.
