How to Reset the Warning Lights on the Dash. Open the hood of your vehicle. Loosen the nut that holds the negative terminal to the battery with the pliers. Completely remove the cable from the negative battery terminal. Leave the battery disconnected for 10 minutes to ensure that the computer is fully reset. The headlight (Green light) on dash does not display but if you flash the headlights the (blue) light illuminates?!. I have checked the fuses and the dim switch under the headlights but these all seem fine.. After cleaning, reconnect the terminals. 3. Weak key fob battery. If your Astra has push start/stop button, then its possible that your vehicle may not start due to weak key fob battery. Don't worry, you can still start your vehicle - the battery is only used to send the signal for locking/unlocking. Vauxhall Astra Mk 4 Dash Warning Lights & Symbols - For more info click here astra_4th_gen_dash_lights_197226.cfm 15A Fog lights: 13: 7.5A Multifunction display: 14: 30A Windshield wiper motor: 15: 7.5A Power windows, sunroof, power door mirrors: 16: 10A Rear fog lamp: 17: 30A Power windows: 18: 7,5A Headlight range control: 19-20: 30A Power windows: 21: 7.5А key blocking valve in the ignition lock (automatic transmission), anti-theft system, audio system: 22 26 posts · Joined 2016. #1 · Jul 14, 2017. Hello ,Can anyone help please,I have a astra van 1.7 2004,the left hand indicators work fine the right hand indicators, (front/side/back)have stopped working,but you can still hear the clicking noise as if they are trying to work if you know what i mean,I do try to fix things myself due to lack of A circuit checks the voltage being produced by the alternator and switches on the battery light should it be low. If the battery light comes on, that indicates that there's a problem with the battery recharging process. If the dashboard light comes on then stays on while you drive, it's likely that cause is probably a broken or damaged 15 watt drl mode. If both filaments are lighting up then you may have an earthing problem and the filaments are lighting up in series. You will notice on the bulb holder the earthing side of both filaments is common (one long contact). The earthing point for the front lights is located around the passenger side headlight. Check the official manual: View Owner's Manual. Manufacturer: Opel/Vauxhall. Model: Astra. Check out the warning lights for the 2019 Opel/Vauxhall Astra for free. Find out what the dashboard symbols mean for your make, model and year of car. Shop astra g dashboard at great deals online. Suitable for all kinds of cars. Also shop for automobiles, parts & accessories at best prices on AliExpress! 10Pcs LED Light Car Gauge Speed Dash Bulb for Opel OPC Astra J H G K Insignia Corsa D B E Mokka Vectra B . Shop1102689449 Store. US $ 5. 61. US $12.16. Welcome deal. uMXGj.