Electrical system & electronics
From batteries and sensors to lighting and indicator lights, our experts take care of all your electrical and electronic equipment.
A reliable electronic system for a smooth ride
Request an appointment online or by phone to diagnose your electrical system or other repairs.
Bring your vehicle to the workshop for a thorough check of all electronic components.
Drive away with a fully functional system, or with new, suitable parts if repair or replacement is necessary.
All our electrical and electronic services
Diagnosis of warning lights: Check Engine, TPMS, etc.
A warning light on your dashboard is never to be overlooked. Thanks to our advanced diagnostic tools, we can quickly identify the source of the problem – whether it’s the engine, tire pressure, or a faulty sensor – to intervene effectively and avoid any complications.
Lighting: headlights, taillights, etc.
Good lighting is essential for seeing and being seen, day and night. We replace and fine-tune your headlights, taillights, turn signals and brake lights to ensure your safety and that of other road users.
Driving assistance systems: radar, sensors, reversing camera
Driving assistance technologies offer comfort and safety. Our technicians check, calibrate and repair sensors, parking radars, reversing cameras and other electronic devices to ensure they work properly in all circumstances.
Battery: test, recharge, replace
A weak battery can leave you stranded at the worst possible time. We test the voltage and capacity of your battery, recharge it if possible or replace it with a model adapted to your vehicle to guarantee reliable starting in all seasons.
Alternator and starter
The alternator charges your battery and the starter motor starts the engine. If one of these elements shows signs of weakness, we carry out a complete diagnosis and replace the defective components to ensure optimal operation of the starting system.
Why maintain your electrical and electronic systems?
The smooth running of your vehicle relies on a complete electrical system: battery, alternator, starter, but also warning lights, lighting, sensors and driving aids (radar, cameras, TPMS, etc.).
Over time, these components can become worn, clogged or less reliable. The signs are sometimes discreet: a slower start-up, warning lights that light up, less powerful lights or a sensor that reacts badly. Preventive maintenance allows you to:
- Avoid sudden breakdowns or impossible starts
- Maintain the efficiency of lighting and safety systems
- Extend the life of your electrical components
- Identify anomalies before they become costly
At Alex Pneu et Mécanique, we perform a complete check: battery test, alternator and starter analysis, indicator code reading, lighting check and sensor inspection.
We use reliable parts and precise diagnostic tools to identify problems quickly and offer you clear solutions. With reliable parts and transparent diagnostics, you can leave with peace of mind
Why choose us for your electrical and electronic systems?
Full diagnostics, no guesswork
Light on? Headlights too dim? We test the battery, alternator, starter, indicators, sensors, connections and more. The result: a clear, fast and reliable diagnosis
Total transparency, zero pressure
We explain the results clearly. No jargon, no hard sell. We discuss possible solutions together, and you remain in control of the decision
Fast, clean and well done
Electrical, electronic, security: we know that every minute counts. We repair what’s needed, with quality parts, and always to the manufacturer’s standards
Up-to-date skills and tools
Hybrid cars, start-stop systems, AGM or EFB batteries, advanced sensors, reversing radars or electronic modules: our technicians are continuously trained and equipped to work on all types of modern vehicles.
Values that protect you
We believe in integrity, efficiency and respect. No hidden fees, no unnecessary repairs, just honest, humane and professional service. Because we earn your trust with every visit
Frequently asked questions about the electronic & electrical system
When should I replace my car's battery?
In general, a battery lasts between 3 and 5 years. Signs such as slow starting, poorly reacting accessories or warning lights indicate that it’s time to have it tested
How do I know if my alternator is at fault?
If your battery is new but continues to discharge, if a battery light comes on, or if your headlights dim while driving, the alternator may be faulty.
What does a Check Engine or TPMS light mean?
These lights indicate a problem in one or more of the vehicle’s systems. Electronic diagnosis is required to read the error codes and locate the cause.
Can you diagnose all dashboard warning lights?
Yes. We use advanced diagnostic tools compatible with most vehicles to read error codes and identify the necessary repairs.
Why do my headlights seem less powerful than before?
This may be due to a bulb reaching the end of its life, a power supply problem, or a faulty alternator. A quick inspection will clarify the situation.
My reversing sensor no longer works, what should I do?
It could be a dirty, damaged or disconnected sensor. We inspect the driver assistance systems (radar, sensors, cameras) to identify and resolve the problem.
Do you offer replacement parts?
Yes. If a component is defective (battery, alternator, starter motor, sensor, etc.), we offer quality parts that are suitable for your vehicle.
Are your diagnostics guaranteed?
Yes. We offer a clear, documented and reliable diagnosis. In the event of replacement, our parts are covered by a parts and labor warranty.
What our customers say about us…
Merci !
Come and see us at the garage
Contact us
Email: info@alex.ca
Phone number: (514) 521-5500
Opening hours
Monday: 7:30am – 5:00pm
Tuesday: 7:30 – 17:00
Wednesday: 7:30 – 17:00
Thursday: 7:30 – 17:00
Friday: 7:30 – 17:00
Saturday: Closed
Sunday: Closed
Have your electrical system checked by Alex
A light comes on for no reason? Weak headlights? Start-up is slow or your reversing sensors are temperamental? Don’t take any chances: a quick diagnosis can prevent a breakdown or costly repairs.
We intervene for:
Diagnose warning lights (Check Engine, TPMS, etc.)
Test battery, alternator and starter status
Check front and rear lighting and power supply
Inspect driver assistance systems: radar, cameras, sensors, etc.
Check cables, connections and electrical losses
Replace necessary components with reliable parts
An electrical system in good condition means a safe, functional and enjoyable vehicle to drive – summer and winter alike
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