Originally Posted by gypsydad
...also had issues several times in Rockies going down long windy steep highway grades, where the "tow" mode did not proved enough engine breaking compression, even in 2nd gear...May look at Chevy and Dodge also...hate to go Diese...
Not a bad idea to take a look at the GM trucks. They come with the "Grade Brake Assist". It's a nice feature and makes me chuckle when I see other trucks at the bottom of the hill with smoking brakes.
I guess many drivers don't know how to go downhill w/o "riding" the brakes.
One rule is to use the same gear (or lower) going downhill as you'd use to go uphill.
In some cases you'd still have to apply the brakes. But it is more efficient to brake "hearty" and release again.
Grade Braking Operation on Full-size Trucks
2014 Silverado, 2014 Sierra Towing Assist Features | GM Authority
I also really like the "Hill Start Assist".
It'll hold the brakes for a few seconds to prevent the rig from moving while the driver takes the foot off the brake pedal to the accelerator.