2013 Toyota Tundra Regular Cab Owners Manual - Page 253

2-5. Driving information ● To maintain engine braking efficiency and charging system performance when using engine braking, do not use the transmission in D. Transmission shift range position must be in 4 in the S mode. ● Instability happens more frequently when descending steep or long downhill grades. Before descending, slow down and downshift. Do not make sudden downshifts while descending steep or long downhill grades. ● Avoid holding the brake pedal down too long or applying the brakes too frequently. This could cause the brakes to overheat and result in reduced braking efficiency. ● Due to the added load of the trailer, your vehicle's engine may overheat on hot days (at temperatures over 85° F [30° C]) when driving up a long or steep grade. If the engine coolant temperature gauge indicates overheating, immediately turn off the air conditioning (if in use), pull your vehicle off the road and stop in a safe spot. (→P. 654) ● Always place wheel blocks under both the vehicle's and the trailer's wheels when parking. Apply the parking brake firmly, and put the transmission in P. Avoid parking on a slope, but if unavoidable, do so only after performing the following: Apply the brakes and keep them applied. Have someone place wheel blocks under both the vehicle's and trailer's wheels. When the wheel blocks are in place, release the brakes slowly until the blocks absorb the load. Apply the parking brake firmly. Shift into P and turn off the engine. 2 When driving 289