Nissan Altima Owners Manual: Brake precautions
Vacuum assisted brakes
The brake booster aids braking by using engine vacuum. If the engine stops, you can stop the vehicle by depressing the brake pedal. However, greater foot pressure on the brake pedal will be required to stop the vehicle and stopping distance will be longer.
Using the brakes
Avoid resting your foot on the brake pedal while driving. This will overheat the brakes, wear out the brake pads faster, and reduce gas mileage.
To help reduce brake wear and to prevent the brakes from overheating, reduce speed and downshift to a lower gear before going down a slope or long grade. Overheated brakes may reduce braking performance and could result in loss of vehicle control.
WARNING
● While driving on a slippery surface, be careful when braking, accelerating or downshifting. Abrupt braking or accelerating could cause the wheels to skid and result in an accident.
● If the engine is not running or is turned off while driving, the power assist for the brakes will not work. Braking will be harder.
Wet brakes
When the vehicle is washed or driven through water, the brakes may get wet. As a result, your braking distance will be longer and the vehicle may pull to one side during braking.
To dry the brakes, drive the vehicle at a safe speed while lightly pressing the brake pedal to heat up the brakes. Do this until the brakes return to normal. Avoid driving the vehicle at high speeds until the brakes function correctly.
Parking brake break-in
Break-in the parking brake shoes whenever the effect of the parking brake is weakened or whenever the parking brake shoes and/or drum/rotors are replaced, in order to assure the best brake performance.
This procedure is described in the vehicle service manual and can be performed by a NISSAN dealer.
Brake system
The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at 2 wheels. ...
Anti-lock Braking System (ABS)
WARNING
● The Anti-lock Braking System (ABS) is a
sophisticated device, but it cannot prevent
accidents resulting from careless
or dangerous driving techniques. It can
help maintain vehicle ...
Other materials:
B2609 steering status
Description
There are 2 switches in the electronic steering column lock (steering
lock/unlock switch 1 and 2). BCM compares
those two switches conditions to judge the present steering status.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2609 is displayed with DTC U1000, first perform th ...
Malfunction indicator lamp
Description
The Malfunction Indicator Lamp (MIL) is located on the combination
meter.
The MIL will light up when the ignition switch is turned ON without
the engine running. This is a bulb check.
When the engine is started, the MIL should go off. If the MIL remains
on, the on board diagno ...
P1421 Cold start control
Description
ECM controls ignition timing and engine idle speed when engine is started
with pre-warming up condition.
This control promotes the activation of three way catalyst by heating the
catalyst and reduces emissions.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC P1421 is displayed ...