Hyundai A/C and car service in Chennai
A Creta with weak rear airflow and an i20 with intermittent cooling need different questions at intake. Tell GM the model, year and what you notice. Our independent Ambattur workshop handles Hyundai A/C, general-service and electrical enquiries.
Reviewed by G.M. Manigandan, founder and lead technician · Last reviewed

Choose the symptom that matches your Hyundai
- Creta: front and rear comfortTell us whether rear airflow is weak or whether the whole cabin feels warm. We confirm the fitted vent and climate-control layout; rear vents alone do not establish a separate rear cooling circuit.
- i20: cooling changes during a driveExplain when cooling changes, whether airflow changes too and whether the problem occurs in traffic or while moving. An intermittent complaint may need observation.
- Grand i10, Venue and Verna: service planningSend the year, engine, transmission and service history. We match the maintenance discussion to your version rather than assuming one schedule suits every Hyundai.
Keep the original complaint separate from maintenance
If you are booking an oil service and the A/C also cuts out, mention both. Routine maintenance does not automatically diagnose an intermittent cooling fault. Tell us about dashboard warnings, previous gas refills and recent electrical repairs so the team can plan the inspection.
For an electric or hybrid Hyundai, confirm the model and requested work before booking. This service offer does not cover high-voltage battery or drivetrain repairs.
How the visit works
- Share the model, year, mileage and complaint before travelling.
- We confirm an inspection slot and check the vehicle.
- You receive the findings and a written estimate for the proposed work.
- After approval, we confirm parts and expected timing, carry out the agreed work and check the result.
How are service costs decided, and when do I approve them?
GM starts with a free 30-point A/C and electrical checkup. We explain the findings and give you a written estimate before any paid work. Service prices depend on the inspection, parts and work you approve.
Independent workshop service
GM Car A/C Service is an independent multibrand workshop, not an authorised Hyundai service centre. For manufacturer warranty claims, recalls or high-voltage battery and drivetrain work, contact the manufacturer's service network. Share hybrid or electric vehicle details before booking so we can confirm the service scope.
Where is GM's workshop in Kallikuppam, Ambattur, and when is it open?
Visit GM Car A/C Service at 12A, Gangai Amman Kovil Street, Kallikuppam, Ambattur, Chennai 600053. Workshop hours are Monday to Saturday, 10:00 AM to 8:00 PM. Sunday is closed.
Coming from Avadi, Padi, Korattur or Mogappair? Call before travelling so we can confirm a suitable inspection slot. See the Ambattur workshop details.
Open the Kallikuppam workshop on Google Maps. This page refers to the workshop in Ambattur; the nearby areas listed are customer travel areas.
Arrange an inspection
Send the model year, fuel type, mileage and a short description of the complaint. Include previous repair details if the fault has returned. We will confirm an inspection slot and discuss timing after the checks.
Hyundai owner information
Use the official Hyundai owner information and manuals to check the controls and maintenance instructions for your exact model and year. Bring the service record to your inspection. The manufacturer information explains the vehicle; it does not endorse GM or confirm a repair diagnosis.
About this service information
Published by GM Car A/C Service. Updated . Describe your vehicle and complaint when booking; the inspection determines the repair, parts and completion estimate.
Four steps, in this order, every time
Diagnosis-first is the whole method: measure, write it down, then price it. It is also why every job, gas filling included, is quoted in writing after the checkup.
We test before we quote
The free 30-point A/C and electrical checkup runs first, 15 to 35 minutes, with a written report of what was measured.
You get the estimate in writing
The report says what was found. Gas filling, like everything else, is quoted in writing after the checkup, and nothing starts until you approve it.
No work starts until you approve
Nothing is opened up or replaced before you say yes to the estimate. If the diagnosis changes the scope, you hear about it first.
Repaired, then checked again
The approved work is done and the car is checked again before handover.
Frequently asked questions
Can you check weak rear cooling in a Hyundai Creta?
Yes. Tell us whether the rear airflow is weak or the air is warm throughout the cabin. We check the actual system fitted to your year and variant before recommending work.
Does intermittent i20 cooling mean a sensor needs replacing?
Not necessarily. The symptom needs inspection and may need to be observed while it occurs. A sensor or another part should not be replaced from the symptom alone.
What affects a Hyundai general-service estimate?
The year, engine, transmission, service history and inspection findings determine the required work. GM confirms the written estimate before any paid work.
Can you accept a Hyundai electric vehicle?
Contact the team with the exact model and requested work before bringing it in. Scope must be confirmed; high-voltage battery and drivetrain repairs are outside this offer.
Is GM an authorised Hyundai service centre?
No. GM Car A/C Service is an independent multibrand workshop. Contact Hyundai for manufacturer warranty claims and recalls.
Where is GM located for Hyundai service?
GM Car A/C Service is at 12A, Gangai Amman Kovil Street, Kallikuppam, Ambattur, Chennai 600053. The workshop opens Monday to Saturday, 10:00 AM to 8:00 PM, and closes on Sunday. Call or WhatsApp +91 88893 60888 to confirm an inspection slot before travelling.
Related pages and areas
Tell us what the car is doing
Pick a day and a time and send a slot request. We confirm it by phone or WhatsApp in workshop hours. The 30-point A/C and electrical checkup is free, takes 15 to 35 minutes and comes with a written report. Nothing is charged and no work starts without your approval.
Customer Service · Individual car owners. Mon–Sat 10:00 AM – 8:00 PM, Sunday closed. Prefer not to call? The form takes about 30 seconds.

Illustrative image. Not a photograph of GM premises, staff or a customer vehicle.