Chevrolet Sonic Owner's Manual: Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include:
- Keep the vehicle serviced and in good shape.
- Check all fluid levels and brakes, tires, cooling system, and transmission.
- Shift to a lower gear when going down steep or long hills.
Warning
Using the brakes to slow the vehicle on a long downhill slope can cause brake overheating, can reduce brake performance, and could result in a loss of braking. Shift the transmission to a lower gear to let the engine assist the brakes on a steep downhill slope.
Warning
Coasting downhill in N (Neutral) or with the ignition off is dangerous. This can cause overheating of the brakes and loss of steering. Always have the engine running and the vehicle in gear.
- Stay in your own lane. Do not swing wide or cut across the center of the road. Drive at speeds that let you stay in your own lane.
- Be alert on top of hills; something could be in your lane (stalled car, accident).
- Pay attention to special road signs (falling rocks area, winding roads, long grades, passing or no-passing zones) and take appropriate action.
Highway Hypnosis
Always be alert and pay attention to your surroundings while driving. If you
become tired or sleepy, find a safe place to park the vehicle and rest.
Other driving tips include:
Keep the vehicle ...
Winter Driving
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Other materials:
Trim Height Inspection
Trim Height Measurement
Trim height is a predetermined measurement relating to vehicle ride height.
Incorrect trim heights can cause the vehicle to bottom out over bumps, damage
to the suspension components and symptoms similar to wheel alignment problems.
Check the trim heights wh ...
Crankcase Ventilation System Inspection/Diagnosis
Results of Incorrect Operation
A plugged positive crankcase ventilation (PCV) orifice or hose may cause
the following conditions:
Rough idle
Stalling or slow idle speed
Oil leaks
Oil in the throttle body
Sludge in the engine
Functional Check
With thes ...
Knock Sensor System Description
Circuit/System Description
The knock sensor system enables the engine control module (ECM) to control
the ignition timing for the best possible performance while protecting the engine
from potentially damaging levels of detonation. The ECM uses the knock sensor
system to test for ...
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