2016 Toyota Land Cruiser Brake Fluid Type and Flush Interval

By Core Brake Parts Tech Team — Circleville, OH warehouse

The 2016 Toyota Land Cruiser uses DOT 3 brake fluid. Toyota's owner's manual specifies fluid meeting SAE J1703 or FMVSS No. 116 DOT 3. Toyota's 2016 Warranty and Maintenance Guide gives no fixed mileage for replacing brake fluid. It calls for the fluid level to be checked every 5,000 miles or 6 months and the brake lines and hoses to be inspected every 15,000 miles or 18 months. Because brake fluid absorbs water as it ages, the right time to flush is when a test or an inspection shows the fluid is contaminated. Waiting for a warning light is too late.

What Toyota Specifies for the 2016 Land Cruiser

The fluid type is listed in three places in the 2016 Land Cruiser owner's manual: the do-it-yourself parts list, the brake fluid refill page, and the specifications chapter. All three say the same thing: SAE J1703 or FMVSS No. 116 DOT 3. The same brake specifications table lists the other numbers owners ask about:

Only the fluid is needed to top off the reservoir. The manual also calls for a clean funnel used only for brake fluid, and it warns that brake fluid damages paint and irritates skin and eyes. If you spill any on the fender, rinse it off right away.

Why DOT 3, and What the Federal Standard Means

FMVSS No. 116 is the federal standard that defines the DOT fluid grades. Its most important test is the boiling point, measured once on fresh fluid (ERBP) and again after the fluid has absorbed a controlled amount of water (wet ERBP):

The gap between the two columns explains why brake fluid wears out. With DOT 3, the minimum boiling point falls from 401 F when fresh to 284 F once the fluid is wet. Nothing about the fluid looks different, but under hard use (a long mountain descent, towing, or crawling downhill on the brakes) the fluid in the calipers can boil. Vapor bubbles compress, and the pedal goes soft or sinks.

The standard also requires the fluid container label to say it should be kept clean and tightly closed to prevent moisture absorption. Toyota's manual makes the same point: use only newly opened brake fluid, because excess moisture causes a dangerous loss of braking efficiency. A half-empty bottle that has sat on a garage shelf is not fresh fluid.

Do not use DOT 5 in a Land Cruiser. FMVSS 116 requires DOT 5 fluid to be labeled either "DOT 5 SILICONE BASE" or "DOT 5.1 NON-SILICONE BASE." Silicone DOT 5 is a different chemistry from the glycol-based DOT 3 the truck was built with. The safe choice is fluid labeled DOT 3, as Toyota specifies.

The Flush Interval: What the Maintenance Guide Actually Says

Many owners expect a line in the maintenance schedule that says "replace brake fluid." The 2016 Land Cruiser Warranty and Maintenance Guide for the U.S. does not have one. Here is what it does schedule:

• Every 5,000 miles or 6 months: inspect and adjust all fluid levels, and visually inspect brake pads, discs, linings and drums.
• Every 15,000 miles or 18 months: inspect brake lines and hoses for proper installation, chafing, cracks, deterioration and leaks.
• Off-road, every day: after driving through deep sand, mud or water, the guide says to check brake lines and hoses and brake pads and discs, along with the rest of the chassis items.

Without a fixed interval, fluid replacement depends on condition. At every service where the fluid gets inspected, have it tested with a moisture or copper test strip. Flush it when the test fails, when it looks dark, or when you do other hydraulic work such as replacing a caliper or hose. A Land Cruiser that tows, carries heavy loads, crosses water or lives in a humid climate will usually need fluid sooner than one used only for highway commuting. When the fluid's age is unknown on a used truck, a flush gives you a known starting point.

Checking and Topping Off the Fluid

The brake fluid reservoir is in the engine compartment. The level should sit between the MAX and MIN lines on the tank. This truck's brake system has a pressure accumulator, so Toyota gives a specific topping-off procedure:

1. Turn the engine switch off.
2. Depress the brake pedal more than 40 times.
3. Remove the reservoir cap by hand and add brake fluid up to the MAX line.

The manual warns that the reservoir may overflow if you skip the pedal-pumping step. It also explains that the level normally drops slightly as the pads wear, or when the fluid level in the accumulator is high. A small drop over thousands of miles usually means the pads are wearing. If the reservoir needs frequent refilling, the manual says that may indicate a serious problem. In that case, look for a leak at the calipers, hoses and lines before adding more fluid.

The brake system warning light comes on when the brake fluid level is low or the brake system is malfunctioning. On this truck it is backed by a buzzer that sounds once the vehicle reaches 3 mph. Toyota says to stop in a safe place and contact a dealer if it comes on, because continuing to drive may be dangerous.

Doing a Full Flush on the 200-Series

A full flush is harder on this truck than on a basic car. The accumulator and the ABS and stability-control hydraulics mean the bleed sequence and pedal procedure come from the factory repair manual, not from generic instructions. Some steps may require a scan tool to cycle the hydraulic unit. If you do the job yourself:

• Open a new, sealed bottle of DOT 3 and have enough on hand. Running the reservoir dry introduces air into the system.
• Follow the bleed order and procedure in the factory repair manual for your VIN.
• Tighten bleeder screws to the value in the factory service manual. Do not guess.
• Confirm a firm pedal with the engine running before you drive, then check that the pedal clearance still meets the 4.49-inch minimum listed above.

If you do not have the factory procedure or a capable scan tool, this is a reasonable job to pay a shop for. An incomplete bleed that leaves air in the system is worse than old fluid.

What to Replace at the Same Time

A flush is a good time to look at the whole system. Measure the pads against the 1.0 mm wear limit, and replace them well before they reach it. Inspect the rotors for scoring, heat checking and runout. Check the parking brake linings (the parking brake has its own linings with the same 1.0 mm limit) and confirm the lever sets in 5 to 7 clicks.

If the pads are close to done, doing brake pads for your Land Cruiser and the flush in one visit saves a second bleed. For owners who want more bite and heat capacity for towing, we carry the Hawk Talon front cross-drilled and slotted rotor set for the 2016 Land Cruiser. You can also browse our full brake rotor selection. Any cracked or swollen flex hoses found during the 15,000-mile inspection should be replaced before the flush, using parts from our brake hose collection.

We checked the NHTSA recall database for the 2016 Land Cruiser. The recalls listed are for air bags and tires. None involve the brake hydraulic system, so a flush here is routine maintenance, not a recall fix.

Frequently Asked Questions

What brake fluid does a 2016 Toyota Land Cruiser take?

SAE J1703 or FMVSS No. 116 DOT 3 brake fluid, according to Toyota's owner's manual. Use it from a freshly opened container.

Can I use DOT 4 instead of DOT 3?

Toyota specifies DOT 3 for this truck. DOT 4 has higher minimum boiling points under FMVSS 116, but the safest choice is the fluid the factory calls for. If you are considering a different fluid, check the factory repair manual or a Toyota dealer first. Never use silicone-based DOT 5.

How often should I flush the brake fluid?

Toyota's U.S. maintenance guide for the 2016 Land Cruiser does not list a fixed replacement interval. It calls for checking fluid levels every 5,000 miles or 6 months and inspecting brake lines and hoses every 15,000 miles or 18 months. Test the fluid at those visits and flush it when it fails a moisture or copper test, looks dark, or after any hydraulic repair.

Why do I have to pump the brake pedal 40 times before adding fluid?

The Land Cruiser's brake system has a pressure accumulator. Pumping the pedal more than 40 times with the engine off brings the reservoir to a true reading. If you skip that step, the reservoir can overflow once the accumulator discharges.

My brake fluid level is a little low. Is that a problem?

A slight drop is normal as the pads wear. If you need to add fluid often, or the brake warning light and buzzer come on, stop and have the system inspected for a leak.

Sources

1. 2016 Toyota Land Cruiser Owner's Manual - DOT 3 / SAE J1703 fluid type, refill procedure (pedal 40+ times, accumulator), level notes, warning light, pad and parking brake wear limits, pedal specs
2. Toyota 2016 Land Cruiser Warranty and Maintenance Guide - fluid level checks every 5,000 miles/6 months, brake line and hose inspection every 15,000 miles/18 months, off-road daily checks, no fixed fluid replacement item
3. 49 CFR 571.116, FMVSS No. 116 Motor Vehicle Brake Fluids (Cornell LII) - DOT 3/4/5 dry and wet boiling point minimums, container moisture warning, DOT 5 labeling
4. NHTSA recall data, 2016 Toyota Land Cruiser - listed recalls cover air bags and tires, none for the brake hydraulic system