Your car probably already has a dozen safety features you have never switched on. The automaker buried them in menus, gave them vague names, or left them off by default to avoid annoying you.
After reading this, you will be able to find and enable the useful ones, tune the settings that matter, and know which features to leave alone. Budget about 30 to 45 minutes with your owner's manual and the car parked, engine off or in accessory mode.
A quick reality check before we start: names and menu paths differ between brands and model years, and some features are locked to higher trims. Where I give an example, treat it as a starting point and verify the exact wording in your own manual.
What you need before you start
- Your owner's manual, paper or the PDF version for your exact model year. This matters more than any tool.
- The car parked safely, parking brake on, in accessory mode so you can poke through menus without draining anything.
- A phone with a notes app, so you can jot down settings you changed.
- Optionally, a tire pressure gauge. Many "hidden" safety features only work when tire pressures are correct.
No account, no subscription and no special tool is needed for most of this.
Step 1: Find the settings menu you have never opened
Most modern cars have two or three layers of menus: a quick settings screen, a vehicle settings screen, and a deeper service or customization menu. The safety features usually live in the middle layer.
Look for headings like "Driver Assistance," "Safety & Security," "ADAS," "Collision Mitigation" or "Driver Support." Write down every item you see before changing anything.
Why it matters: You cannot enable what you cannot find, and half the frustration people have with these systems comes from not knowing a setting exists.
Tip: If your screen has a search box, type "safety" or "assist" rather than scrolling.
Step 2: Turn on automatic emergency braking if it is off
Automatic emergency braking (AEB) uses radar, cameras or both to warn you and then brake if a collision looks likely. On many cars sold after roughly 2022 it is standard, but on older or base-trim models it may be optional or disabled.
Check the menu for "Forward Collision-Avoidance Assist," "Pre-Collision System," "City Braking" or similar. Set sensitivity to the middle option first, then adjust after a week of driving.
Why it matters: AEB is one of the few features proven to reduce rear-end crashes. It is not a substitute for your attention, but it is a useful backstop.
Tip: Do not set it to the most sensitive setting on day one. False alerts in traffic will make you want to switch the whole thing off.
Step 3: Set your blind spot monitoring to warn, not just light up
Blind spot monitoring usually has two parts: a mirror light and an audible or steering-wheel vibration alert if you signal while a car is there. Many drivers leave the audible part off because it is irritating at first.
Turn the chime or vibration on for at least a month. If it genuinely misfires, check that your rear bumper sensors and cameras are clean before disabling it.
Why it matters: The visual light is easy to miss in bright sun or when you are tired. The extra nudge catches the lane change you were about to make.
Step 4: Adjust lane keeping from "nag" to "help"
Lane keeping assist and lane departure warning are often lumped together and often set to the most intrusive mode from the factory. Look for settings like "Lane Centering," "Steering Assist," "Alert Only" or "Alert + Assist."
If you hate the tugging, switch to alert-only first. If you do a lot of highway driving, try centering assist and give it a full week.
Why it matters: These systems reduce fatigue on long drives, but only if you keep them on. The wrong mode is the main reason people disable them permanently.
Step 5: Fix your mirror and seat memory before you touch electronics
This is not a menu setting, but it is the highest-value five minutes in this whole guide. Set your seat height and distance first, then your mirrors, then save it to memory position 1.
Set the passenger mirror to dip when reversing if your car supports it. That single feature prevents more curb and wheel damage than most electronic aids.
Tip: If two drivers share the car, save a second memory position and label it. It takes ten seconds and ends a recurring argument.
Step 6: Learn the child safety lock and window lock, even without kids
Rear door child locks are usually a small mechanical switch inside the door edge, not a screen setting. Window lock is a button on the driver's door panel.
Why it matters: Passengers, pets and cargo can open doors or windows at speed. Locking them is a two-second habit.
Tip: Test the child lock with the door open before you rely on it.
Step 7: Set up automatic door locking and unlocking
Most cars let you choose whether doors lock when you shift into drive or reach a certain speed, and unlock when you shift into park or open the driver's door. Find "Door Lock/Unlock" in vehicle settings.
Why it matters: Auto-locking reduces the risk of a door opening in a crash and makes you a harder target in slow traffic. Auto-unlocking prevents you from trapping yourself or a passenger.
Step 8: Check your headlight and wiper auto settings
Automatic headlights are not the same as daytime running lights. Confirm the switch is on "Auto" and that the sensitivity is set so lights come on in rain and dusk, not just full dark. Pair this with automatic wipers if you have them.
Why it matters: Being seen is half of car safety. Many drivers assume lights are automatic when the switch is actually on "Off" or "Parking."
Tip: Test by covering the light sensor on the dash with your hand. The lights should come on within a few seconds.
Step 9: Turn on rear cross traffic alert and parking sensors
Rear cross traffic alert warns you about cars approaching from the sides as you reverse out of a space. Parking sensors warn about obstacles. Both are frequently buried in the same menu as blind spot monitoring.
If you have a 360-degree camera, check whether it activates in drive as well as reverse. Some cars only show it in reverse by default.
Step 10: Set your speed warning and speed limiter
Two different things. A speed warning chimes when you exceed a set speed. A speed limiter caps your speed without you holding the pedal.
Set the warning five to ten percent above your local limit, or use the intelligent version if your car reads speed signs. Verify that the sign-reading system works in your area before trusting it.
Why it matters: Most speeding is accidental, not deliberate. A quiet chime is cheaper than a ticket.
Step 11: Understand adaptive cruise control distance settings
Adaptive cruise control keeps a set gap to the car ahead. Most cars have four or five following-distance bars. The shortest setting is not a challenge, it is a smaller safety margin.
Start at the second-longest gap on the highway. Reduce it only in light traffic, and never in rain, fog or snow.
Why it matters: The gap setting changes your stopping distance more than your reaction time does.
Step 12: Check tire pressure monitoring, and know its limits
Find the TPMS reset or calibration option in your settings. Some systems need a reset after you inflate tires or rotate wheels.
Why it matters: TPMS warns you when pressure is already low, not when it is ideal. Use a gauge monthly and set pressures to the door-jamb sticker, not the tire sidewall.
Step 13: Turn on hill hold or auto-hold
Auto-hold keeps the brakes applied when you stop, so you can take your foot off the pedal. Hill hold stops you rolling back on a slope. Both are usually a button near the parking brake.
Why it matters: Less foot shuffling, fewer roll-back moments at junctions.
Step 14: Set up emergency call and SOS
Many cars have an SOS button or automatic crash notification. Check that it is active and that your account or SIM is registered if it needs one. In some regions this is automatic; in others you must opt in.
Why it matters: After a serious crash, automatic calling can save minutes. Verify the service is active in your country, since availability varies.
Step 15: Configure your key fob and walk-away lock
Check whether your car locks itself when you walk away with the fob, and whether it beeps to confirm. Also learn the panic button and the window roll-down trick if you have one.
Why it matters: Walk-away locking prevents the most common theft of opportunity: an unlocked car.
Step 16: Learn the manual override for every electronic aid
For each feature above, find how to switch it off quickly. Traction control, stability control, parking sensors and AEB all have override procedures, and some are needed when you fit a spare tire or get stuck in snow.
Why it matters: A safety feature you cannot turn off when it misbehaves is a hazard. Know the escape hatch before you need it.
If your car is electric or a plug-in hybrid, some of these overrides and warning behaviours are covered in more depth in the EV troubleshooting guides at https://ev.brightcoding.dev/troubleshooting.
Step 17: Write your settings down and recheck after service
Dealers and workshops sometimes reset modules during software updates or battery work. Your carefully tuned settings can vanish.
Keep a one-page note in the glovebox listing what you enabled and at what sensitivity. Recheck after every service.
Why it matters: A five-minute recheck restores safety features you already paid for.
Pro tips
- Change one setting at a time, then drive a full week before judging it.
- Use the middle sensitivity for any warning system. Extremes are for unusual situations.
- Clean cameras and radar covers monthly. Most "broken" systems are dirty sensors.
- If a warning chimes constantly, fix the cause rather than muting it.
- For EV-specific driver assistance quirks, the diagnostic and fuse guides at https://ev.brightcoding.dev/diagnostics are a good next stop.
- If you are still choosing a car, the head-to-head comparisons at https://ev.brightcoding.dev/compare show which safety features come standard on which models.
Common pitfalls
- Turning everything to maximum sensitivity. You will get false alerts and switch the system off within a week. Start in the middle.
- Confusing daytime running lights with automatic headlights. Your tail lights may be off in rain. Check the switch position, not the dashboard glow.
- Trusting speed sign recognition blindly. Roadworks and temporary signs confuse it. Verify locally.
- Assuming a workshop kept your settings. They often reset. Recheck after service.
- Ignoring the tire pressure warning light because the car "drives fine." Low pressure ruins braking distances and range, especially on EVs.
Useful resources
- Your owner's manual, and the PDF for your exact model year if you bought used.
- The EV model directory at https://ev.brightcoding.dev/vehicles for spec and feature lists by model.
- The free calculators and tools at https://ev.brightcoding.dev/tools if you want to check how driver settings and tire pressure affect range.
- The EV blog at https://ev.brightcoding.dev/blog for ownership guides that overlap with these settings.
FAQ
Do these features work on older cars? Some do, some do not. Blind spot monitoring and AEB were rare before roughly 2015 and often optional after. Check your manual rather than assuming.
Will automatic emergency braking brake for pedestrians and cyclists? Many newer systems do, but coverage varies by brand, speed and conditions. Never rely on it. Verify what your specific model covers.
Why does my lane keeping tug the wheel? It is usually set to the most active mode. Switch to alert-only, or reduce the assist strength if your car allows it.
Can I add these features to a car that does not have them? Rarely, and not cost-effectively. Aftermarket dash cams and reverse cameras are the realistic additions. Factory radar and camera systems are not simple retrofits.
Do these settings affect my warranty? Changing settings in the menus does not. Modifying wiring or adding non-approved electronics can, so check before you splice anything.
One last thing
You will not remember all 17. Pick the four that matter most to your daily drive, set them this week, and write them down. That is already a safer car than the one you drove yesterday.
Ready to act on what you just read? Explorethe EV model directory, head-to-head EV comparisons or the free EV calculators and tools. The rest of this site is built to help you take the next step.
