Saab 2007 owner manual Driving on hilly roads with a heavy load, Descending hills

Starting and driving 155

Driving on hilly roads with a heavy load

The transmission fluid can overheat when the gearbox is strained, for example, when driving with a trailer on hilly roads. To avoid the transmission fluid overheating, always drive in Normal mode. The adaptive gear change patterns are then active.

High air temperatures or a faulty oil cooler can also cause the transmission fluid to overheat. Overheating reduces the service life of the fluid. Contact an authorized Saab dealer (see also page 174).

Towing

Towing of cars with automatic transmission, see page 183.

Descending hills

WARNING

Remember to use engine-braking (selec- tor position D or L) to spare the brakes when you are driving on a long or steep downhill slope.

Brake failure can result from overheated brakes!

If the speed of the car increases while descending a steep hill, despite the acceler- ator being released, the control module will change down a gear when you brake. If you desire more powerful engine braking, man- ually select a lower gear.