I have a 2006 suzuki grand vitara and my malfunction light has came on also my cruise control is not working...recently had a tuneup and oil change the whole vehicle was checked out as I was getting ready to travel ... any ideas on this??

Question edited for clarity, add maker.
Question moved to make model category.

Check the fuses and relays.

Fuse Box Diagram Suzuki Grand Vitara (JT; 2005-2015)

https://fuse-box.info > suzuki > suzuki-grand-vitara-jt-2...

In this article, you will find fuse box diagrams of Suzuki Grand Vitara 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 and 2015, get information ...

you probably wont notice it to much and remote start and cruise control will not work when their is an engine trouble code --as to the code do search type in --p0--- for search and look into the multi answers most have what causes and solutions to the problem

double posted as Anon'
and was answered

the answer was, bank 2, sensor 1, (top) oxygen bad, or wires bad to it.

Samir,

P2631 - Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 Circuit High Voltage
Read more: http://engine-codes.com/p2631.html#ixzz3FnZyF1Go So start looking at the oxygen sensors and replacing them

this is a complex car, and engines.
Just 1 code? and no pendings?
A DIESEL engine , and in USA , are ya> or in Canada?

the shop manual for all complex cars, is a must have.

P2 codes are factory codes, unique to only Suzuki ,
so use their books.
alldata dot com has it.

"Particulate Trap Efficiency Below Threshold Malfunction "
but cleaning it , is not the only way to fix it.
the manual covers this, and how the test works and what can make it fail, simple swaps or cleans dont always work.
RTM please.

Yes, if the oil warning light is faulty.

it should be a clean drop though clearing the crossmember may be tough (even harder if its a 4 wheel drive)

Here is a site that should help. If I could hook my scanner up I could tell you in minutes if the O2 sensor was working by watching the data stream. the code means you are running lean on the #2 side. This can be caused by a vacuum leak or even a bad sensor. It has to be diagnosed. Read more in this site:

http://www.obd-codes.com/p0174

Just unscrew the screw, then pull hard on the light...it will pop off.

You don't change the light bulb, you have to change out the switch. It is built in the switch, Don suzuki tech