2019–2021 Mazda CX-30 (DM)
Browse our directory of 2019–2021 Mazda CX-30 (DM) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2019–2021 Mazda CX-30 (DM) has 3 known issues. 1 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
Smart Brake Support (SBS) False Positives
SeriousEarly models were prone to "phantom braking" where the car detects a non-existent obstacle and applies the brakes.
Symptoms: Sudden, unexpected braking, Warning beep with "Brake!" message on dash
Est. repair cost: £0 (Software update)
12V Battery Drain
ModerateThe 12V battery can discharge unexpectedly, often due to the keyless entry system or other modules not entering "sleep" mode correctly.
Symptoms: Car won't start after being left for a few days, Low battery warnings
Est. repair cost: £100–£200
Power Tailgate Malfunction
MinorThe electric tailgate can fail to open, fail to close, or beep incessantly due to sensor or software issues.
Symptoms: Tailgate reverses when closing, Beeping sounds but no movement
Est. repair cost: £200–£600
Buying Tips for the 2019–2021 Mazda CX-30 (DM)
- ✓Battery drain is a common complaint; consider a trickle charger if the car is rarely used.
- ✓Check for software updates regarding the Smart Brake Support system.
- ✓Ensure the infotainment system has the latest firmware to avoid glitches.
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