Tire pressure monitoring (Opel Vectra C)

General information

Attention! Incorrect and untimely adjustment of air pressure in tires leads to internal destruction of the tire cord and may cause a wheel rupture while driving!

Maintaining the correct tire pressure (including on the spare wheel) increases their service life, helps save fuel and improves overall driving comfort. The plate with the standard values of air pressure in the tires is located on the fuel filler cap. Always check the pressure on cold tires - before driving, after parking the car for 3 or more hours or when it passes no more than 1.6 km. Checking the pressure on warm or hot tires will result in overestimation of the pressure gauge readings due to thermal expansion of the tires. In this case, you should never lower the pressure, because after the tire cools down, it will be lower than normal.

Checking the pressure with a pressure gauge

Unscrew the protective cap from the inflation valve protruding from the wheel rim or hub cap, then press the pressure gauge nozzle firmly onto the valve. Read the readings and compare them with the recommended values. Remember to replace the protective cap to prevent dirt and moisture from getting into the valve mechanism. Check the pressure in all four tires and inflate them to the recommended pressure if necessary.

Remember to maintain the required pressure in the spare tire. The air pressure in the tires should be checked at least once every 14 days, as well as during maintenance (including spare tire). When checking, use a special pressure gauge or a pressure gauge built into the compressor at a service station.

Note: It is recommended to have an accurate pressure gauge in your glove compartment - pressure gauges built into air hose nozzles at petrol stations should not be trusted.

In addition, air pressures should be checked before every long trip.

Tire Pressure Monitoring Systems

Attention! The tire pressure loss monitoring system does not replace manual monitoring with a verified pressure gauge!

Each wheel has a corresponding sensor. The tire pressure monitoring system continuously monitors the air pressure and rotation speed of all four wheels while driving. If the pressure in one of the tires drops, the diameter of that wheel decreases and it rotates faster than the other wheels. A yellow or red pictogram warning about a drop in air pressure in the tires should appear in the service indicator display field on the instrument cluster - with arrows indicating the wheels with insufficient pressure (see illustration 27.1). Depending on the situation, check and adjust the tire pressure, or replace the damaged wheel with the spare.





In addition, the sensors take pressure readings in each tire every minute and transmit them to the control unit. If deviations from the specified pressure values are detected in one or more tires, a corresponding message is displayed on the information display (see below).

Note: Current tire pressure values can be displayed on the graphic information display on models equipped with a trip computer.

The system is activated after the ignition is turned on and allows you to detect a drop in pressure at driving speed 30 km/h and above and operates provided that all tires are inflated to the specified pressure and all four wheel sensors are in good condition.

The system automatically detects changes in tire pressure depending on the vehicle's load level.

If there are any malfunctions or faults in the air pressure drop monitoring system, the corresponding icon will appear in the service indicator display field (see Section 16).

Note: The appearance of this icon may be caused, among other things, by installing a wheel without a pressure sensor.

Warning messages

Depending on the version, the information display may display messages using abbreviations. To remove a warning message from the display screen, you must confirm receipt by pressing the appropriate button. Examples of information messages are shown below:

"Tight pressure check rear left turn (value in bar)" (see illustration 27.2) - the graphic information display will simultaneously show a diagram indicating the rear left wheel and the current tire pressure value.





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Note: This message is shown on a yellow background on the colour information display. If the pressure is slightly off, reduce your speed and continue driving with caution - check the tyre pressure with a verified pressure gauge as soon as possible and make the appropriate adjustments if necessary. "Attention! Front left tyre pressure loss (value in bar)" - the graphic information display will simultaneously show a diagram indicating the front left wheel and the current tire pressure value (see illustration 27.3).

Note: On the color information display, this message appears on a red background.

This message warns of a significant deviation or complete loss of air pressure in the tire - as quickly as possible move the car out of the traffic flow, without interfering with other cars, stop and check the tires! If necessary, install a spare wheel or repair the tire.

General instructions for operating the system

The spare wheel is not equipped with a pressure sensor. When it is installed, pressure monitoring for this wheel is unavailable - a pictogram warning of a system failure appears in the service indicator display field (see Section 16). For the remaining wheels, the system continues to function.

When using a complete set of wheels not equipped with tire pressure monitoring system sensors (for example, when installing a set of winter tires), no error message is displayed. The tire pressure monitoring system does not function.

If the user wishes, tire pressure monitoring system sensors can be installed on wheels that are not equipped with them - please contact the service station specialists.

To manually check the tire pressure using a pressure gauge, you need to screw a special adapter/special universal device onto the valve, which is stored in a clamp on the inside of the fuel tank filler cap.

Every time you change your tires, the tire pressure monitoring system valve cores and O-rings should be replaced.

When using commercially available liquid tyre pressure maintenance systems or repair kits, malfunctions in the system may occur - consult an Opel service station first.