• The battery must be in good condition and fully charged for this troubleshooting.

| Trouble symptom | Probable cause | Remedy |
| Engine will not crank | Battery charge low | Charge or replace battery |
| Battery cables loose, corroded or worn out | Repair or replace cables | |
| Transaxle range switch (Vehicle with automatic transaxle only) | Refer to AT group-automatic transaxle | |
| Fuse blown | Replace fuse | |
| Starter motor faulty | Replace | |
| Ignition switch faulty | Replace | |
| Engine cranks slowly | Battery charge low | Charge or replace battery |
| Battery cables loose, corroded or worn out | Repair or replace cables | |
| Starter motor faulty | Replace | |
| Starter keeps running | Starter motor faulty | Replace |
| Ignition switch | Replace | |
| Starter spins but engine will not crank | Short in wiring | Repair or replace wiring |
| Pinion gear teeth broken or starter motor | Replace | |
| Ring gear teeth broken | Replace fly wheel or torque converter |
Description and Operation
StarterHyundai Tucson (NX4) 2022-2026 Owner's Manual: Tire Rotation
To equalize tread wear, HYUNDAI
recommends that the tires
be rotated according to the
maintenance schedule or sooner if
irregular wear develops.
During rotation, check the tires for
correct balance.
When rotating tires, check for
uneven wear and damage. Abnormal
wear is usually cause ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Heated Oxygen Sensor (HO2S)
- Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is
installed on upstream and downstream of the Warm up Catalytic Converter
(WCC).After it compares oxygen consistency of the atmosphere with the
exhaust gas, it transfers the corresponding voltage signal to the ...