What does trailer mode do on a truck?
What does trailer mode do on a truck? The tow/haul mode changes a vehicle's transmission shift patterns. Pulling a heavy load requires a lot of power. The tow/haul mode reduces shift cycles. Depending on the truck, it may also boost torque and engage an engine braking mode to help drivers maintain control while driving up and down hills. When to replace a GMC Sierra 1500 part? Usually the hardest part about maintaining a car or truck is searching for a reasonable source for outstanding parts. If your GMC Sierra 1500 needs maintenance, the optimum answer is installing a new first-rate...