Check engine light: what it means and what to do
Check soonSAFETY FIRST
Flashing check engine light: slow down and ease off the gas. If it keeps flashing, pull over and get help.
What it means
The car’s computer found a problem. Steady light: check soon. Flashing light: serious, slow down and get it checked now.
Is it safe to drive?
A steady light: usually OK to drive carefully, but get it checked soon. A flashing light: serious. Slow down, avoid hard driving and get help now.
What to do
- Make sure the gas cap is tight
- If it flashes, avoid hard driving and get help
- Many parts stores read the code for free
General help, not a diagnosis. Every car is a little different: your owner’s manual has the exact meaning of each light, and a mechanic can tell you for sure. Costs in the app are rough estimates. Check for open recalls with your VIN at nhtsa.gov/recalls (repairs for recalls are free at the dealer).