New Zealand's #1 mobile mechanic
Pay in 4, with Afterpay
12 month, 10,000km warranty
Affordable, upfront pricing
New Zealand's #1 mobile mechanic
Pay in 4, with Afterpay
12 month, 10,000km warranty
Affordable, upfront pricing
Battery Warning Light is on assessment
made easy

Enter your cars details to request an estimate for your repair. 🔧

Don’t know your rego? Select by make / model here.
New Zealand's #1 mobile mechanic
Pay in 4, with Afterpay
12 month, 10,000km warranty
Affordable, upfront pricing
New Zealand's #1 mobile mechanic
Pay in 4, with Afterpay
12 month, 10,000km warranty
Affordable, upfront pricing

Battery Warning Light is on assessment made easy

Enter your cars details to request an estimate for your repair 🔧

Don’t know your rego? Select by make / model here.

Why book with us?

Loved by thousands

All our work comes with a 12 month, 10,000km parts and workmanship guarantee.

Upfront, fixed pricing

No "from..." pricing here. We honor our prices, and our quotes don't change unless the job does.

Peace of mind maintenance

We make it easy so you can get on with your day. Car maintenance at home, work or at the golf club.

Tell me about my Battery Warning Light is on assessment

If the battery warning light appears on your dashboard, it’s a sign that your car’s charging system is not functioning correctly. While it’s called the “battery warning light,” the problem is often linked to the alternator, drive belt, or voltage regulator, rather than the battery itself. Ignoring this warning can leave you stranded once the battery discharges completely.

What does the battery warning light mean?

The battery warning light means your car is running on battery power alone because the alternator is not recharging it. Once the stored charge runs out, the engine will stall and you’ll lose access to critical systems like headlights, power steering and brakes.

Why do you need to fix it quickly?

Driving with the battery warning light on means your vehicle may stop within minutes to an hour, depending on battery condition and electrical load. Fixing it quickly prevents breakdowns, reduces the risk of damaging your electrical system, and ensures your car remains safe to drive.

Common causes of a battery warning light

  • Faulty alternator not charging the battery
  • Worn, broken, or slipping drive belt
  • Loose or corroded battery terminals
  • Defective voltage regulator
  • Wiring faults in the charging system

What happens during an assessment?

A mechanic will:

  1. Check the battery, alternator, and drive belt condition
  2. Inspect electrical wiring and connections
  3. Test the charging voltage output
  4. Identify whether the fault lies with the alternator, belt, regulator, or connections

How much does it cost to fix?

The cost depends on the underlying issue. Minor fixes like cleaning or tightening terminals may be inexpensive, while a belt replacement can cost $150–$300. If the alternator is faulty, expect costs from $350–$1,100+ depending on the vehicle.

Is it unsafe to drive with the battery warning light on?

Yes. Once the battery runs flat, your car will lose essential systems such as headlights, power steering, and engine function. It’s recommended to stop driving and have the issue diagnosed immediately when the battery warning light appears.

Need help finding the right service or repair?

Our experts can help. Call or email at hello@turnersservice.co.nz.

☎️ 0800 768 000
You can contact us between 8am & 5pm, Mon to Fri.

Frequently Asked Questions 🧐

Got car questions? We got answers.

We've developed a Help section with information on hundreds of repairs, common symptoms and general car knowledge.

How do online bookings work for car servicing & basic repairs?

Once you fill out your details, you’ll be shown the ‘search results’ which displays instant fixed-price quotes from local service providers that can be booked online.

Yes. Once you have entered in your vehicle details and location, you’ll be able to browse through available repair tasks or inspections that you would like a quote for.

Yes. For the work included in the quote, the price you’re quoted is the final price you’ll pay.

If you’ve booked with a workshop, the service provider will usually require your vehicle for the entire day due to scheduling. If you’ve booked with a mobile provider, you will only be without your vehicle for the time it takes to complete the job.

Booking your car service or repair through Turners Service & Repairs gives you access to these convenient payment options:

1. Pay upfront and online using your credit or debit card or PayPal
2. Flexible payment options with Afterpay
3. In some instances, you can choose to pay the mechanic when the service or repairs have been completed.

Yes, we send through a comprehensive report and invoice / receipt once the booking is completed. If you have any questions please reach out via 0800 768 000.