Skip the auto shop - Our mechanics make house calls

What Does the Jack Mode Warning Light Mean?

Height adjusting suspensions were first introduced in the 1950’s as a way to keep the car level regardless of how much weight is being carried. Adjustable suspension never really picked up until more recently and it now has multiple applications. With adjustable suspension, SUV’s and trucks can raise and lower themselves to make the vehicle easier to get into or so that there is more clearance when off-roading. Even sports cars can benefit from adjusting suspension by hunkering down at higher speeds to improve handling or by raising the nose of the car to get over speed bumps.

Most modern systems adjust themselves automatically so that the driver can focus on the road. However, this can make repairs a little tricky, especially if it’s the suspension that needs to be worked on. Therefore, automakers have programmed a “jack mode” into the car which locks the suspension at a certain height that will not be adjusted until the jack mode has been turned off.

What the jack mode warning light means

This light will look different depending on the vehicle so refer to the owner’s manual of your car so that you know what to look for. Whenever this light is illuminated, the vehicle’s suspension will not change its height allowing repairs to be performed safely.

Jack mode can be disabled manually or will usually deactivate after accelerating more than four or five miles per hour. If this light comes on while you are driving, try restarting the engine once you have pulled over and parked safely somewhere. You’ll need the help of a qualified technician if the jack mode cannot be deactivated as then there it is likely to have a malfunction present.

Is it safe to drive with the jack mode warning light on?

The jack mode only prevents the suspension from adjusting its height but the suspension will still be able to absorb bumps and knocks in the road like normal. However, depending on the type of car, having jack mode enabled all the time could make it difficult to get in and out of parking lots.

If this light refuses to turn off, you should have it diagnosed further as it could be an indication of a more serious problem. Our certified technicians are always available if you are experiencing any issues with your adjusting suspension system.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.


Post a question and get free advice from our certified mechanics.


More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...

Related questions

Q: With new rear brakes, car still won't spin on its own

Hello. After looking into this problem, I do not see where your vehicle has rear calipers but only drum brakes. For drum brakes, if the adjuster was not retracted enough the shoes will drag too much. If your vehicle did...

Q: On right turn, car's engine shut down without warning

Hi there. There are some common issues with this vehicle that will cause this. Most of the time, if it occurs only when turning, it is because of a bad connection at the battery or at one of the control...

Q: Mounts for safe jacking the car up

Yes, that is what they are for. A lot of German cars have them. They are made so that you can jack them up at these safe points and not worry about anything bending or slipping. That's where you'll want...