My Volvo C40 Recharge shows a propulsion system fault or a pile of warnings. What's wrong?

Short answer: If several unrelated warnings show up at once, start cheap: have the codes read to see which wheel sensor is flagged, check that wheel's wiring for rubbing, and test the 12V battery. A propulsion system fault is more serious. Get it to a Volvo dealer, and if you're near the 100,000-mile battery warranty limit, ask about goodwill and get the battery data in writing.

Symptom: The C40 suddenly shows faults for the parking brake, ABS/ESC, tire pressure and collision avoidance together, or it shows a propulsion system fault.

What to check first

1. Have the codes read. They usually name the wheel sensor at fault.
2. Look at the wheel sensor wiring near each front wheel for rubbing.
3. Test the 12V battery.
4. For a propulsion fault, check your mileage against the battery warranty.
5. Run your VIN at nhtsa.gov/recalls.

Likely causes

1. Wheel speed sensor or its wiring. ABS, stability control and tire pressure warnings all rely on wheel speed sensors. Owners found a bad sensor, or a harness rubbing through near a front wheel, behind a cluster of warnings.
2. Weak 12V battery. Almost every modern car, including EVs, has a small 12-volt battery that powers the computers, locks and screens. When it's weak or isn't being recharged, the car can show a pile of unrelated warnings or refuse to go into gear, even with a full main battery.
3. High-voltage battery cell fault. A propulsion system fault can mean a problem in the main battery. One owner's dealer found a dead cell.

What it usually costs

Wheel sensors are usually covered under warranty on newer cars. One owner past the battery warranty was quoted about $5,000 for one cell or $21,000 for a full pack.

Is it safe to keep driving?

With ABS and stability control down, brake earlier and avoid hard stops. A propulsion fault can cut power, so drive straight to the dealer or get a tow.

DIY or shop?

Reading codes and checking wiring is DIY. An EV's high-voltage system can stay live with the car off. Leave the orange cables, the big battery and the charging hardware to a trained EV technician.

Recalls, bulletins and complaints in plain words

• Related recalls: NHTSA lists these recalls touching this area of the Volvo C40 Recharge: 23V188000 (2023-2023 model years, electrical system). Check your VIN at nhtsa.gov/recalls. If your car is part of this recall, the dealer fixes it for free.
• Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
• NHTSA complaints: 0 keyword-matched complaints for Volvo C40 Recharge 2022–2025 (of 2 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-01; keywords: propulsion, battery, fault, warning, 12 v, abs, parking brake, charg) (NHTSA returned no data for 13 model-year queries). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In 2023 C40 with Parking Brake, ABS/ESC, Tire Pressure and Collision Avoidance Faults on Reddit r/volvoc40, a 2023 C40 suddenly showed parking brake, ABS/ESC, tire pressure and collision avoidance faults after about 5 miles at highway speed, and cruise control shut off. Owners said a bad wheel speed sensor was most likely. One found a front wheel harness rubbing the body and shorting, and another said a faulty 12V battery caused similar faults and trouble shifting out of Park.
• In ‘22 c40 battery issues- need help! on Reddit r/volvoc40, a 2022 C40 at 103,000 miles, just past the battery warranty, got a propulsion system fault again. The dealer said a cell in the high-voltage battery was dead and quoted about $5,000 to replace the cell or $21,000 for the pack, and goodwill was denied. Owners suggested a short-term Volvo software license and an OBD adapter to read battery data, and calling other dealers about goodwill.

Quick tip

Near the battery warranty limit, ask in writing for the battery state of health and cell readings. Dealers often say no, but asking and keeping records helps with a goodwill request.

Vehicle focus: Volvo C40 Recharge electric crossover, 2022-2025.

Safety / mechanic note

Warnings for ABS and stability control affect braking. Verify with a mechanic.