2013 VOLKSWAGEN JETTA service

WARNING
Improper connections to the vehicle electrical system can cause malfunctions that affect the
entire vehicle electrical system, which can lead to accidents and serious personal injury.
x Have any work on the electrical system done by an authorized Volkswagen dealer or
authorized Volkswagen Service Facility.
x Never connect the electrical system for the trailer directly to the electrical connections for
the rear lights or to any other unsuitable power sources. Use only a suitable connector to
provide power to the trailer.

NOTICE
Never attach a trailer to the vehicle or leave it attached to the vehicle when the trailer is
supported by a trailer jack or blocks. Various things (such as a change in trailer or vehicle load
or a flat tire) can lower or raise the vehicle. This subjects the trailer hitch and the trailer to
strong forces that can damage the vehicle or the trailer.
If the engine is switched off and accessories in the trailer are on and use electricity from the
vehicle, the vehicle battery will be drained as long as the electrical systems of the vehicle and the
trailer are connected.
Loading the trailer

x Always disconnect the connecting cable and close the cover (1) before starting the engine.
WARNING
Improper use of the engine preheating system may cause short circuits, fires, and serious or fatal personal injuries.
x Always connect the connecting cable to a 120 Volt Ground Fault Circuit (GFI) wall outlet. The outlet must be protected from water, moisture and other fluids.
x Never connect the engine preheating system to a conventional socket, regardless of whether the socket is protected or not.

WARNING
Using an outlet or power cables that are incorrect or damaged, using electrical appliances incorrectly, or ignoring safety precautions can result in short circuits, accidents, injuries, and life-threatening electrical shocks.
x Never use a damaged outlet or a damaged power cable.
x Always plug the preheating system into a 120 Volt Ground Fault Circuit (GFI) wall outlet that is properly protected against rain and other moisture.
x Always check the fuse protection of the 120 Volt power source before using the connecting cable.
x Always use a 12 gauge or heavier heavy-duty extension cable that can be properly grounded to a three-prong GFI outlet. The extension cable must not be longer than 100 ft (30 meters).
x Check the cables for damage before every use. Never use a damaged cable. Damaged cables must be replaced. See an authorized Volkswagen dealer or an authorized Volkswagen Service Facility.
x Only use the cables provided.
x Always remove the connecting cable before starting the engine.
x Never attempt to alter or repair cables or other electrical components.
x Never let plugs or connectors come into contact with water, moisture, or any other fluids.
If the engine preheating system is used occasionally, test the GFI circuit breaker (Ground Fault Circuit Interrupter) once a month. Test it once a week if the system is used regularly.

NOTICE
x Never “ride” the brakes by keeping your foot on the brake pedal when you do not want to
brake. Constant pressure on the brake pedal can make the brakes overheat. Riding the brakes
will substantially reduce braking performance, increase stopping distance, and can cause
complete brake system failure.
x Before driving downhill, especially on hills that are long or steep, always reduce speed and
shift into lower gear (manual or automatic transmission). This will let the vehicle use engine
braking and reduce the load on the brakes. Otherwise, the brake system could overheat and
possibly fail. Only use the brakes when you need them to slow the vehicle down more or to
stop.
When the front brakes are serviced, you should have the rear brake pads inspected at the same
time. The wear of all brake pads should be visually checked regularly. The best way to check for brake
pad wear is to have your authorized Volkswagen dealer or authorized Volkswagen Service Facility
visually inspect the pads through the openings in the wheel rims or from underneath the vehicle. If
necessary, the wheels can be taken off for a more thorough inspection.
Braking assistance systems

The brake fluid level drops slightly when the vehicle is being used as the brake pads wear and the
brakes are automatically adjusted.
Changing brake fluid
Brake fluid must be changed according to the service schedule in your ⇒Booklet Warranty and
Maintenance. Have the brake fluid checked by an authorized Volkswagen dealer or an authorized
Volkswagen Service Facility. Refill only with new brake fluid that meets the standards listed above.
WARNING
Brake failure and reduced brake performance can be caused by not having enough brake
fluid in the reservoir or by old or incorrect brake fluid.
x Check the brake system and brake fluid level regularly.
x Always change the brake fluid according to the service schedule in your
⇒Booklet Warranty and Maintenance.
x Hard braking with old brake fluid may cause vapor lock. Vapor lock reduces braking
performance, increases stopping distances and can even cause total brake failure.
x Always make sure that only the correct brake fluid is used. Only use brake fluid that
expressly conforms to VW Standard 501 14 or, if it is not available, only use a high-quality
brake fluid that conforms to U.S. Standard FMVSS 116 DOT 4 requirements.
x Using another brake fluid, or one that is not of high quality, can impair the function of the
brake system and reduce its effectiveness. If the container does not say that the brake fluid
complies with VW Standard 501 14, or U.S. Standard FMVSS 116 DOT 4, do not use it.
x The brake fluid must be new.

WARNING
Brake fluid is poisonous.
x To reduce the risk of poisoning, never use food, beverage or other non-original containers
to store brake fluid. Someone might be misled by the original label on the container, or by the
shape of the container, and drink the brake fluid. This could occur even if you relabel the
container as “brake fluid.”
x Only store brake fluid in the closed, original container and keep it out of the reach of
children.

NOTICE
Brake fluid will damage vehicle paint, plastic parts, and tires. Wipe any brake fluid off vehicle
paint and other vehicle parts immediately.
Brake fluid can pollute the environment. Brake fluid that has leaked out must be collected and
disposed of properly, following all applicable environmental regulations.

Under the same conditions, the vehicle consumes more fuel in winter than in summer.
“Letting the engine run to warm up” is not only illegal in some places, but also technically not
necessary and wastes fuel.
Adjust the tire pressure
The proper tire pressure helps reduce rolling resistance as well as fuel consumption.
When purchasing new tires, always make sure that the tires are optimized for lower rolling resistance.
Use low viscosity engine oil
Fully “synthetic,” low viscosity engine oils that expressly comply with Volkswagen oil quality standards
reduce fuel consumption. Low viscosity engine oils reduce the frictional resistance on the engine and
are distributed more evenly and quickly, particularly when cold-starting the engine. The effect is
particularly apparent in vehicles that frequently travel short distances.
Always ensure the right engine oil level is maintained and keep to the scheduled service intervals
(engine oil changes).
Make sure the engine oil that you purchase expressly complies with Volkswagen oil quality standards
and is the oil approved by Volkswagen for your vehicle.
Avoid unnecessary weight
The lighter the vehicle, the more economical and eco-friendly it will be. For example, an extra 220 lbs
(100 kg) of weight increases fuel consumption by up to 1 pint per 60 miles (0.3 l/100 km).
Remove all unnecessary items and unnecessary dead weight from the vehicle.
Remove unnecessary aftermarket components
The more aerodynamic the vehicle, the less fuel it will consume. Aftermarket components such as
bicycle racks reduce its aerodynamic performance.
Therefore, remove unnecessary structures and unused rack systems, particularly if planning to drive at
higher speeds.

Lights
up Possible cause Proper response
D
Power steering assist is reduced.
Stop, restart the engine, and drive a short
distance. If the yellow warning light does not
come on again, you do not need to have the
steering system checked.
Otherwise, have the steering checked
immediately by an authorized Volkswagen
dealer or an authorized Volkswagen Service
Facility.
Vehicle battery was disconnected and
has been reconnected.
Drive a short distance at about 10–12 mph
(15–20 km/h).


Flashes Possible cause Proper response
D Electronic steering column lock
malfunction.

1) Do not use Rear Assist in the following situations:
– If the driver is not familiar with the system.
– If the position or angle of the camera has changed, such as after a rear-end collision. Have the
system checked by an authorized Volkswagen dealer or an authorized Volkswagen Service Facility.


2) Examples of optical distortion by the camera
The Rear Assist camera displays only two-dimensional images. Recesses and protruding objects on
the ground or protruding parts on other vehicles are difficult or impossible to identify due to the lack
of depth of field.
Objects or another vehicle may seem closer or farther away on the screen than they really are:
– When driving from a level surface onto an upward or downward slope.
– When driving up or down a slope onto a level surface.
– If the rear of the vehicle is heavily loaded.
– When approaching protruding objects. These objects can disappear from the field of view when
backing up.

Cleaning the camera lens
Keep the camera lens clean and free of snow and ice:
x Engage the parking brake.
x Switch on the ignition.
x Select the reverse gear.
x Wet the camera lens with a commercially available alcohol-based glass cleaner and clean with a
dry cloth ⇒  .
x Remove snow with a brush.
x Remove ice with deicer spray ⇒    
NOTICE
x Never use abrasive cleaning agents to clean the camera lens.
x Never remove snow or ice on the camera lens with warm or hot water. This can damage the
camera lens.

WARNING
Incorrect tire pressures and/or underinflation can cause sudden tire failure, loss of control,
collision, serious personal injury or even death.
x When the warning symbol appears in the instrument cluster, stop and inspect the tires.
x Incorrect tire pressure and/or underinflation can cause increased tire wear and can affect
the handling of the vehicle and stopping ability.
x Incorrect tire pressures and/or underinflation can also lead to sudden tire failure,
including a blowout and sudden deflation, causing loss of vehicle control.
x The driver is responsible for the correct tire pressures for all tires on the vehicle. The
recommended tire pressure values are listed on a sticker inside the driver door .
x The TPMS can only work correctly when all tires on the vehicle are filled to the correct
cold tire inflation pressure.
x Using incorrect tire pressure values can cause accidents or other damage. Always inflate
the tires to the correct specified cold tire pressure values for the tires installed on the vehicle.
x Always maintain correct cold tire inflation pressure so that TPMS can do its job.
x Always inflate tires to the recommended and correct tire pressure before driving off.
x Driving with underinflated tires causes them to flex (bend) more, letting them get too hot,
resulting in tread separation, sudden tire failure, and loss of control.
x Excessive speed and/overloading can cause heat build-up, sudden tire failure and loss of
control.
x If the tire pressure is too low or too high, the tires will wear prematurely and the vehicle
will not handle well.
x If the tire is not “flat” and you do not have to change a wheel immediately, drive carefully
and at reduced speed to the nearest service station to check the tire pressure and add air as
required.
x When replacing tires or wheel rims on vehicles equipped with TPMS always read and heed
the information and all WARNINGS regarding , Tires and wheels.
x The Tire Pressure Monitoring System must be recalibrated using the SET button whenever
you remove and remount or change any wheel or tire on the vehicle, even if the reinstalled or
replacement wheels and tires are identical to those that were removed and even if the tire
pressure does not change .

WARNING
Improper use of the SET button can cause the TPMS to give false warnings or to give no
warning despite dangerously low tire pressure .
Underinflation increases fuel consumption and tire wear.
Do not rely solely on the Tire Pressure Monitoring System. Check your tires regularly to make
sure they are properly inflated and have no signs of damage, such as punctures, cuts, cracks, and
blisters. Remove any objects that become embedded in the tire tread but have not penetrated into the
body of tire itself.