Parts for your 2023 Toyota C-hr-Rack boots

2023 Toyota C‑HR rack boots: what they do and how to look after them

Rack boots are absolutely used on the 2023 Toyota C‑HR. Technical documentation backs it up: the Toyota Repair Manual for the C‑HR (AX10/AX50 series), Steering—Electric Power Steering—Steering Gear—Components, shows bellows‑type rack boots on both ends of the rack. The Toyota Electronic Parts Catalog for C‑HR models likewise lists “Boot, Steering Rack” as a service part for this generation. Even though the C‑HR uses electric power steering (EPS), the rack‑and‑pinion still relies on boots to shield the inner tie rods and rack bar.

On this model, the rack boots (also called bellows or gaiters) keep water, dust, and grit out of the steering gear while helping retain the correct grease around the inner tie rod joints. That protection keeps the steering feel consistent, prevents corrosion on the rack bar, and avoids premature inner tie rod wear. EPS means there’s no hydraulic fluid to leak, but torn boots can still let in muck that chews out the rack—an expensive fix compared to a simple boot swap.

There’s no set replacement interval, they’re replaced on condition. As part of regular servicing, it’s smart to have the boots inspected every 10,000–15,000 km (or each service visit/inspection). Look for:

• Cracks, splits, perishing, or oil/grease sling on the boot exterior
• Loose, missing, or rusty clamps
• Gritty steering feel or a light knock over bumps (may hint at inner tie rod wear)

If a boot is damaged, replacing both sides is often recommended to keep wear even. A typical job involves removing the front wheel, disconnecting the outer tie rod end from the knuckle, sliding off the old boot, checking the inner tie rod for play, then fitting a new genuine‑spec boot with fresh clamps and the correct rack grease. The boot shouldn’t be twisted, and air volume inside the bellows needs to be balanced before final clamping to avoid stressing the material.

Because the outer tie rod position is disturbed, a wheel alignment check is good practice after boot replacement, even if the technician counted turns or marked the thread. Use the factory torque specs and new cotter pins where applicable, exactly as outlined in the Toyota Repair Manual. Staying on top of boot condition helps the C‑HR steer sweetly, keeps tyres wearing evenly, and protects the rack for the long haul.

• Do 2023 Toyota C‑HRs have rack boots even with EPS?
  Yes. The C‑HR’s electric power steering still uses a conventional rack‑and‑pinion with bellows‑type rack boots on both ends. EPS removes hydraulics, not the need to keep dirt out of the rack and inner tie rods.
• How often should the rack boots be replaced?
  They’re replaced on condition, not time. Have them inspected at every service. If there’s any cracking, splits, or loose clamps, replace promptly and get a wheel alignment check afterwards.
• Is it safe to drive with a torn rack boot?
  It’s not ideal. Short trips to a workshop are usually fine, but grit and water can quickly damage the inner tie rod and rack bar. Sorting the boot early is far cheaper than a steering rack replacement.