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2021 Vauxhall Astra Keys User Information

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2021 Vauxhall Astra Keys User Information

The 2021 Vauxhall Astra is equipped with a keyless entry and start system, allowing owners to lock, unlock, and start the vehicle without physically removing the key fob from their pocket or purse. The key fob for the 2021 Astra is compact and ergonomically designed for simple handling and storage. It may include buttons for lock, unlock, trunk release, and distress alarm functions.

Depending on the trim level and options, the key fob may include a remote start feature, allowing the owner to remotely activate the engine, which is particularly useful for pre-conditioning the cabin in extreme weather. These key-related features of the 2021 Vauxhall Astra reflect the evolving technology and convenience presented in modern vehicles, making the driving experience more comfortable and safe for owners. Refer to the vehicle’s owner’s manual for specific instructions and details pertaining to the keyless entry and start system, as well as any key-related functions specific to your Astra model.

Keys, locks

Keys Key with foldaway key section

Caution
Do not attach heavy or bulky items to the ignition key.

Danger
Never remove the key from ignition switch during driving as this will cause steering wheel lock. 2021 Vauxhall Astra Keys (1) Press button to extend. To fold the key, first press the button.

Electronic Key with keyless Entry and Start 2021 Vauxhall Astra Keys (2) Push the latch to extract the integral key.

Lock cylinders

Designed to free-wheel if they are forcefully rotated without the correct key or if the correct key is not fully inserted. To reset, insert the correct key only half way and turn cylinder until its slot is vertical, remove key then re-insert it. If the cylinder still free-wheels, insert the key only half way and turn the key through 180°and repeat operation.

Replacement keys
The key number is specified on a detachable tag. The key number must be quoted when ordering replacement keys as it is a component of the immobiliser system. Locks Central locking Starting the engine Radio remote control

Electronic key 
Designed to free-wheel if they are forcefully rotated without the correct key or if the correct key is not fully inserted. To reset, insert the correct key only half way and turn cylinder until its slot is vertical, remove key then reinsert it. If the cylinder still free-wheels, insert the key only half way and turn the key through 180°and repeat operation. Replacement keys The key number is specified on a detachable tag. The key number must be quoted when ordering replacement keys as it is a component of the immobiliser system. Locks Central locking Starting the engine Radio remote control Electronic key The code number of the adapter for the locking wheel nuts is specified on a card. It must be quoted when ordering a replacement adapter. Wheel changing.

Radio Remote Control 2021 Vauxhall Astra Keys (3) 2021 Vauxhall Astra Keys (1) Unlocks the vehicle 2021 Vauxhall Astra Keys (3)locks the vehicle 2021 Vauxhall Astra Keys (2)Long press unlocks and Opens the tailgate Enables operation of the following functions via the use of the remote control buttons: Central locking system Anti-theft locking system Anti-theft alarm system Tailgate unlocking Power windows Mirrors folding Vehicle locator lighting The remote control has a range of up to 50 m, but may also be much less due to external influences. The hazard warning flashers confirm operation. Handle with care, protect from moisture and high temperatures and avoid unnecessary operation.

Replacing Battery in Radio Remote Control
Replace the battery as soon as the system no longer operates properly or the range is reduced. In the event of a discharged battery, 2021 Vauxhall Astra Keys (4) illuminates and a warning message is displayed in the Driver Information Centre. Batteries do not belong in household waste. They must be disposed of at an appropriate recycling collection point. 2021 Vauxhall Astra Keys (4)

  1. Remove the back cover from the remote control.
  2. Extract the flat battery from its location.
  3. Replace battery with a battery of the same type. Pay attention to the installation position.
  4. Clip the back cover in place.

Fault
If the central locking system cannot be operated with the radio remote control, the cause may be one of the following:

  • Fault in radio remote control. The battery voltage is too low. Overload of the central locking system by operating at frequent intervals, the power supply is interrupted for a short time. Interference from higher-power radio waves from other sources.

Electronic Key System

2021 Vauxhall Astra Keys (6) Enables a keyless operation of the following functions:

  • Central locking system Ignition switching on and starting the engine

The electronic key simply needs to be on the driver’s person. For reasons of security, the electronic key may be equipped with a motion sensor. If so, starting of the vehicle is not possible when the electronic key has not been moved for a certain time. When trying to start the vehicle, a corresponding message appears in the Driver Information Centre. Move the electronic key and try to start the vehicle again. Additionally, the electronic key includes the functionality of the radio remote control 3 7. Handle with care, protect from moisture and high temperatures and avoid unnecessary operation.

Replacing Battery in Electronic Key
Replace the battery as soon as the system no longer operates properly or the range is reduced. In the event of a discharged battery,2021 Vauxhall Astra Keys (4) illuminates and a warning message is displayed in the Driver Information Centre. 2021 Vauxhall Astra Keys (5) Batteries do not belong in household waste. They must be disposed of at an appropriate recycling collection point. 2021 Vauxhall Astra Keys (7)

  1. Remove the back cover.
  2. Extract the flat battery from its location.
  3. Replace battery with a battery of the same type. Insert the battery by pushing it against the contact located in the corner and then pressing it down. Pay attention to the installation position.
  4. Clip the back cover in place.

Fault
If the central locking cannot be operated or the engine cannot be started, the cause may be one of the following:

  • Fault in electronic key. Electronic key is out of reception range. The battery voltage is too low. Overload of the central locking system by operating at frequent intervals, the power supply is interrupted for a short time. Interference from higher-power radio waves from other sources. Interference from electronic devices such as smartphones or laptops.

To rectify the cause of the fault, change the position of the electronic key.

Central Locking System

Unlocks and locks doors, load compartment and fuel filler flap. A pull on an interior door handle unlocks and opens the respective door. When the driver’s door only function is activated in the vehicle personalisation settings, only the driver’s door unlocks when its interior handle is pulled. When the function is deactivated all doors will be unlocked. Regardless of the vehicle personalisation setting, all doors will be unlocked when the interior handle of any other door than the driver’s door is pulled.

Notice In the event of an accident in which airbags or belt pretensioners are deployed, the vehicle is automatically unlocked.

Remote Control Operation Unlocking 2021 Vauxhall Astra Keys (7) Press 2021 Vauxhall Astra Keys (1). If the vehicle is not closed properly, the central locking system will not work. Operation of the central locking system is confirmed by the hazard warning flashers..

Load Compartment 2021 Vauxhall Astra Keys (10) Press and hold 2021 Vauxhall Astra Keys (2) to unlock. Unlocking settings for the load compartment can be set in the vehicle personalisation:

  • Only the load compartment will be unlocked by pressing 2021 Vauxhall Astra Keys (2)once. All doors, load compartment and fuel filler flap will be unlocked by pressing2021 Vauxhall Astra Keys (2) once.

Depending on the chosen setting in the vehicle personalisation, the load compartment can be locked:

  • By simply closing the opened tailgate. By pressing2021 Vauxhall Astra Keys (3) once on the remote control with the tailgate closed.

Select the relevant setting in the vehicle personalisation. Vehicle personalisation Unlocking the tailgate

Confirmation
Operation of the central locking system is confirmed by the hazard warning flashers and an audible chime.

Electronic Key System Operation

This system allows automatic vehicle locking and unlocking simply by detection of the electronic key. The electronic key must be outside the vehicle.

Notice If the vehicle is not closed properly or the electronic key remains in the vehicle, locking will not be permitted. If the vehicle is equipped with an anti-theft alarm system, a warning chime sounds after a few seconds.

Notice The electronic key may not operate if placed close to electronic devices such as mobile phones or laptop computers. 2021 Vauxhall Astra Keys (11)

  • Zone 1: automatic locking on leaving the vehicle
  • Zone 2: automatic unlocking on approaching the vehicle

Notice If the electronic key remains for more than 15 minutes in zone 1, automatic unlocking is deactivated. Unlock the vehicle by pressing a or 2021 Vauxhall Astra Keys (2)  on the remote control or touch the sensor of the driver’s door handle to unlock the vehicle. Automatic locking and unlocking 2021 Vauxhall Astra Keys (1)is activated again.

Notice
A short time after automatic unlocking, the vehicle is relocked if no door has been opened. Notice If the ignition is switched off for more than nine days or the vehicle battery has no sufficient charging, the automatic function is disabled. Press a  2021 Vauxhall Astra Keys (2) on the remote control or touch the sensor of the driver’s door handle to 2021 Vauxhall Astra Keys (1)unlock the vehicle. In the event that the ignition is switched off for more than 21 days, the only way to unlock2021 Vauxhall Astra Keys (1) the vehicle is by pressing a or 2021 Vauxhall Astra Keys (2) on the remote control.

Unlocking / locking
Unlocking / locking mode can be set in the vehicle personalisation menu in the Info Display. Following settings are selectable:

  • Only the driver’s door and fuel filler flap will be unlocked /locked. All doors, load compartment and fuel filler flap will be unlocked /locked.
  • Only the load compartment will be unlocked / locked.

Vehicle personalisation Load compartment

Operation with buttons on the electronic key 2021 Vauxhall Astra Keys (12) The central locking system can also be operated with the buttons on the electronic key. Press 2021 Vauxhall Astra Keys (1) or 2021 Vauxhall Astra Keys (2)to unlock. Press2021 Vauxhall Astra Keys (3)  to lock. Remote control operation .

Driver’s Door Handle 2021 Vauxhall Astra Keys (13) The central locking system can also be operated by touching the sensor of the driver’s door handle. Touch the sensor of the driver’s door handle to unlock or to lock.

Confirmation
Operation of central locking system is confirmed by the hazard warning flashers.

Central locking button

Locks or unlocks all doors, the load compartment and fuel filler flap from inside the passenger compartment. 2021 Vauxhall Astra Keys (14) Press 2021 Vauxhall Astra Keys (3) to lock. The LED in the button illuminates. Press 2021 Vauxhall Astra Keys (1) again to unlock. The LED in the button extinguishes. Operation with the key in case of a central locking system fault In case of a fault, e.g. vehicle battery or remote control / electronic key battery is discharged, the front door can be locked or unlocked with the mechanical key.

Manual Unlocking
Extract or extend the key. Keys 2021 Vauxhall Astra Keys (15) Manually unlock the left front door by inserting and turning the key in the lock cylinder. The other doors can be opened by pulling the interior handle. The load compartment and fuel filler flap will possibly not be unlocked. By switching on the ignition, the anti-theft locking system is deactivated.

Manual locking 2021 Vauxhall Astra Keys (16) Manually lock the front doors by inserting and turning the key in the lock cylinder. 2021 Vauxhall Astra Keys (17) To lock the other doors, open the rear doors. Ensure that child lock is deactivated. Insert key carefully and turn it to the inner side of the doors. Then, remove key. Close the doors. The fuel filler flap and tailgate are possibly not locked.

Automatic Locking

Automatic locking after driving off
This system allows automatic locking of the doors and tailgate as soon as the speed of the vehicle exceeds a certain speed. If one of the doors or the tailgate is open, the automatic central locking does not take place. This is signalled by the sound of the locks rebounding, accompanied by illumination of P in the Driver Information Centre, an audible signal and the display of an alert message. 2021 Vauxhall Astra Keys (18) This function can be activated or deactivated at any time. With the ignition on, press b until an audible signal starts and a corresponding message is displayed. The state of the system stays in memory when switching off the ignition.

Automatic relock after unlocking
This feature automatically relocks the vehicle a short time after unlocking with the remote control or electronic key, provided vehicle has not been opened.

Child Locks

Warning Use the child locks whenever children are occupying the rear seats. Turn the child lock in the rear door outwards to the horizontal position by using a key. The door cannot be opened from the inside. To deactivate, turn the child lock in the opposite direction.

FAQs

What type of key does the 2021 Vauxhall Astra use?

The 2021 Vauxhall Astra employs a keyless entry system with a key fob as standard equipment.

Can I start the engine without inserting the key fob?

Yes, the 2021 Astra typically has a push-button start function, allowing you to activate the engine with the key fob in your pocket or purse.

How do I replace the battery in the key fob?

To replace the battery in the key transmitter, consult the owner’s manual or your dealership for assistance.

What should I do if my key fob battery is low?

 If the key fob’s battery is low, a warning message may appear on the dashboard. It is recommended to replace the battery as soon as feasible to prevent lockouts.

Can I get a spare key fob for my Astra?

Yes, you can typically obtain a replacement key fob from a Vauxhall dealer. They can program it to function with your automobile.

What if I lose my key fob?

If you lose your key transmitter, you must contact your dealership immediately to deactivate it and obtain a replacement.

Is there a physical key blade inside the key fob?

Some key fobs conceal a physical key blade that can be used to access the door manually if the battery dies. Examine your key pendant for this function.

Is there a way to disable the keyless entry system for added security?

 Some vehicles allow you to momentarily disable the keyless entry system. Consult the owner’s manual for instructions on how to complete this task.

Can I customize key settings for different drivers?

Depending on the trim level, you may be able to customize the settings associated with certain controls, such as the seat and mirror positions.

How far does the keyless entry system’s range extend?

The distance may differ, but it is within a few feet of the vehicle. It is necessary to be close to the vehicle for the system to function.

Can I use the keyless entry system if the car’s battery is dead?

If the car’s battery is entirely dead, the keyless entry system may not function in some instances. The physical key may be required to access the doors.

Are there any security features to prevent key fob cloning or theft?*

Many contemporary key fobs are equipped with security features, such as rolling code encryption, to prevent unauthorized access and duplication.

How do I reprogram my key fob if it stops working

Consult your owner’s manual for instructions on how to reprogram your key fob if it stops functioning or becomes unresponsive.


What happens if the key fob is inside the vehicle, and I accidentally lock it?

Some vehicles are equipped with a feature that precludes locking the keys inside. Nonetheless, it is imperative to double-check before securing the vehicle.

Are there any software updates for the keyless entry system?

It is conceivable that software updates addressing performance or security issues are available for the keyless entry system. Consult your dealer for any revisions.

How do I replace the battery in the key fob?

To replace the battery in the key transmitter, consult the owner’s manual or your dealership for assistance.

What should I do if my key fob battery is low?

 If the key fob’s battery is low, a warning message may appear on the dashboard. It is recommended to replace the battery as soon as feasible to prevent lockouts.

Can I get a spare key fob for my Astra?

Yes, you can typically obtain a replacement key fob from a Vauxhall dealer. They can program it to function with your automobile.

Can I start the engine without inserting the key fob?

Yes, the 2021 Astra typically has a push button start function, allowing you to activate the engine with the key fob in your pocket or purse.

What type of key does the 2021 Vauxhall Astra use?

The 2021 Vauxhall Astra employs a keyless entry system with a key fob as standard equipment.

Useful Link

View Full PDF: Vauxhall Astra 2021 User Manual| Auto User Guide

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