Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

What does error code 21 indicate on an Opel Astra J?

Model: Vauxhall Astra Astra J - Years: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Part: Warning light – error code

See other generations:
Video tutorial

Error code 21 on the instrument cluster display of an Opel Astra J lights up when the left rear lamp bulb is blown or faulty. There are three possible causes for this malfunction: the bulb is blown, the connector is damaged, or the fuse related to the rear lamp is blown.

Check the condition of the fuse; if it is intact, check the connector. If the connector is also functioning properly, replace the lamp bulb.

Doing so will certainly resolve the issue and the error code will reset automatically.


Updated on 26 October 2026 by ScegliAuto


Related tutorials

What Does Error Code 82 Mean on the Opel Astra?
What Does Error Code 82 Mean on the Opel Astra?
Vauxhall Astra (2009-2016 / Astra J) Error code 82 indicates that the oil change interval level has been reached. This error code activates on all Opel vehicles. Today, we will specifica…
What Does Error Code 24 Indicate on the Opel Astra?
What Does Error Code 24 Indicate on the Opel Astra?
Vauxhall Astra (2009-2016 / Astra J) Error code 24 on the instrument panel of the Opel Astra model J indicates a malfunction of the number plate light bulb. To reset the error code, it i…
What Does Error Code 18 Indicate on an Opel Astra?
What Does Error Code 18 Indicate on an Opel Astra?
Vauxhall Astra (2015-2022 / Astra K) Error code 18 on an Opel Astra K model indicates a malfunction of the left front headlamp bulb. This means you need to replace the bulb to reset the …

    Frequently Asked Questions

    • Astra 2015-2022 - What does code 82 mean on a Vauxhall Astra? Read answer
    • Astra 2015-2022 - What does error code 62 indicate on the Opel Astra K? Read answer
    • Astra 2009-2016 - What does fault code 54 mean on the Opel Astra version J? Read answer
    • Astra 2015-2022 - What does code 16 mean on the Opel Astra? Read answer
    • Astra 2009-2016 - What does the message "code 89" mean in the Opel Astra? Read answer
    • Astra 2004-2010 - What does error 68302 mean on the dashboard of the Opel Astra H? Read answer
    • Astra 2004-2010 - Where can I find the list of error codes for the Opel Astra? Read answer
    • Astra 2009-2016 - What does the Opel Astra J error code 60 mean? Read answer
    • Astra 2009-2016 - When does code 59 appear in the Opel Astra? Read answer
    • Astra 2015-2022 - What does the error code 22 mean on the Opel Astra? Read answer
    • Astra 2015-2022 - What does code 21 mean on the Opel Astra? Read answer
    • Astra 1998-2006 - What does the Code 22 of the Opel Astra mean? Read answer
    • Astra 2009-2016 - What does code error 84 mean on Opel Astra? Read answer
    • Astra 2015-2022 - What does code 95 mean in an Opel Astra? Read answer
    • Astra 2009-2016 - What does code 82 mean on an Opel Astra? Read answer
    • Astra 2009-2016 - What does code 89 of the Opel Astra J mean? Read answer
    • Astra 2009-2016 - What does the Opel Astra TC light mean? Read answer
    • Astra 2009-2016 - What does code 4 mean in the Opel Astra J? Read answer
    • Astra 2004-2010 - What does the Opel Astra error code ECN 050074 mean? Read answer
    • Astra 2009-2016 - What does the error code 82 mean on my Opel Astra j? Read answer

How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

More videos