A car key fob not working can quickly ruin your day. Many Gauteng motorists assume the remote is broken and needs replacing immediately. However, the problem is often far simpler.
At Northriding Mobile Locksmith, around 70% of “faulty key fob” callouts turn out to be flat batteries. Therefore, checking a few simple things first can save you time and money.
Before replacing your remote, try these five important checks.
1. Replace the Key Fob Battery First
The first step is always replacing the battery.
Most vehicle remotes use small coin-cell batteries such as:
- CR2032
- CR2025
- CR2016
These batteries are affordable and easy to find at:
- Dis-Chem
- Clicks
- Takealot
- Hardware stores
- Supermarkets across Gauteng
How to Replace a Key Fob Battery
- Open the remote carefully using the side notch
- Remove the old battery
- Insert the new battery correctly
- Close the remote securely
- Test the buttons again
In many cases, this immediately solves the problem.
2. Move Closer to the Vehicle
Sometimes a weak battery reduces the remote range.
If your remote only works near the driver’s door, the battery is likely failing. In addition, dirt or worn buttons can affect performance.
Also double-check that you are using the correct key fob. Surprisingly, many motorists accidentally grab the wrong remote.
3. Use the Emergency Key
Most modern remotes include a hidden emergency key blade.
Use this key to unlock the driver’s door manually.
If the key works, the issue is usually electronic. However, if the key does not work, the door lock itself may be worn or damaged.
Northriding Mobile Locksmith also repairs faulty vehicle locks across Gauteng.
4. Test Your Spare Key
Testing your spare key helps identify the real problem quickly.
If the spare key works normally, the original remote may have:
- Lost programming
- Internal damage
- Water damage
- Faulty buttons
However, if neither key works, the issue may involve the vehicle itself.
Common causes include:
- Weak car battery voltage
- Immobiliser faults
- Receiver module problems
- Electrical issues
This is especially common on luxury vehicles and push-to-start systems.
5. Try Reprogramming the Key Fob
Some vehicles allow manual remote programming. However, procedures differ between manufacturers.
For example:
- Toyota systems differ from Ford
- BMW and Mercedes-Benz often require specialist tools
- Jaguar and Land Rover usually need advanced diagnostics
Incorrect programming attempts can temporarily lock the system. Therefore, professional assistance is often the safer option.
When a Car Key Fob Is Actually Broken
If your car key fob is still not working after testing everything, internal damage may be the cause.
Common failures include:
- Cracked circuit boards
- Water damage
- Worn buttons
- Faulty transponder chips
- Drop damage
In these cases, replacement or professional repair is usually required.
Car Key Replacement Costs in Gauteng
Vehicle key replacement prices vary depending on the vehicle type and security system.
Estimated 2026 Pricing
| Key Type | Estimated Cost |
|---|---|
| Basic Transponder Key | ±R1,200–R2,200 |
| Flip Key with Chip | ±R1,800–R3,500 |
| Smart Push-to-Start Key | ±R2,500–R6,500 |
| Luxury Vehicle Smart Key | ±R4,500–R9,000+ |
Pricing depends on:
- Vehicle make and model
- Key availability
- Programming requirements
- Whether all keys are lost
Why Mobile Locksmiths Cost Less Than Dealerships
Dealerships often charge more because:
- Vehicles may require towing
- Keys are factory ordered
- Labour costs are higher
- Waiting times are longer
In contrast, a mobile locksmith can usually assist on-site.
Northriding Mobile Locksmith specialises in:
- Car key replacement
- Smart key programming
- Vehicle lockouts
- Luxury vehicle keys
- Jaguar & Land Rover keys
- Dealer-level diagnostics
We are trusted by dealerships and motorists throughout Gauteng for affordable and professional service.
What We Need Before Dispatching
To speed up your service, we usually confirm:
- Vehicle make and model
- Vehicle year
- Whether you still have a working key
- VIN number if available
This helps us arrive fully prepared.
Fast Mobile Car Key Assistance Across Gauteng
If your car key fob is not working, professional help is only a call away.
Northriding Mobile Locksmith provides fast and affordable mobile automotive locksmith services throughout Gauteng.
We specialise in luxury vehicle keys and are the preferred locksmith for many dealerships.
Jay – 082 651 6416
Northriding Mobile Locksmith
Servicing Gauteng
