2002 Toyota Sienna: check engine light

9 of the 181 complaints about the 2002 Toyota Sienna describe check engine light.

owner complaints: 9
of this car's complaints: 5%
typical mileage: 70,000
recalls: 0

Is there a fix? 11 service bulletins cover this area of the car. See below

Check engine light by model year

2020
4
2019
2
2018
1
2017
9
2016
1
2015
7
2014
2
2013
1
2011
6
2010
2
2009
3
2008
12
2007
10
2006
6
2005
6
2004
11
2003
2
2002
9
2001
8
2000
15
1999
6
1998
6

What owners say

Filed Feb 15, 2026 · Electrical · CA

Dear Sir, On April 2026, I need to do the semiannual smog check. Right now, I face DTC P0420 error code and I can't pass the smog check inspection. Note that I don't have the engine light on indicating the a/m error code. Only my OBD2 shows the error DTC Code P0420. I did some searhing and noticed that the ECM for Sienna should be updated to erase the a/m DTC code. I would appreciated to help me how the resolve this issue ASAP. It will enable me to renew my registration.You may contact on my cell phone 747 217 7254 or my email at [email protected]. Regards, Massey

Filed Apr 5, 2023 · Electrical, Engine · TX

Checking engine light on and off slide door not working properly

Filed Mar 11, 2013 · Engine · AZ

I am not alone in this issue. Just google it. I have had an issue with my engine light being on consistently since I have bought this vehicle, brand new. I have spent hundreds of dollars, endless hours and a lot of anxiety and frustration. When I lived in ohio, it was not a "big deal" because there were no emission requirements. When I moved to arizona, it became a nightmare. I have had several services by toyota on the van. I have paid hundreds of dollars for what they tell me is the problem and it still has not been fixed. I read other peoples stories online and the same "remedies. Suggested by toyota and their computer readouts" that cost hundreds, sometime thousands of dollars and it is still not fixed. The safety issue arises, when is the engine light a real issue and when is it just toyotas manufacturing defect? There is no way to tell. I am campaigning and willing to organize a social media recall. I am tired and out of money for repairs that do not work. It is time for toyota to admit the issue and fix it. Thank you.

Filed Mar 4, 2011 · Fuel system · 165,000 miles · GA

Purchased 2002 toyota sienna new. Purchased hess gas in florida, (ethan within 24 hours check engine light came on. Had checked and reset and eventually came back on gain. Rec'd some estimates an was told it was either oxygen sensor or catalytic conv. Catalytic below threshold hold need to be replaced. Replaced and 3 months out of warranty engine light on again. Check diagnostic and again same code. Had it reset, did no repairs within 9 months light on again. Told it is definitely the catalytic conv. (longest) one; same one recently replaced. Can't understand why this happening again. Is there a problem with the obd or is it really the caty. Or oxygen sensor.. Dealership would not even offer any type of discount, they quoted me the same price and I asked, "how could it be the same part?" "could it be done at half cost? Was told it was about 1500 parts and labor again.

Filed Mar 12, 2010 · Electrical, Engine · 70,000 miles · FL

Tl*the contact owns a 2002 toyota sienna. Whenever the charcoal canister or any minor malfunction occurred in the vehicle the traction control was deactivated. The traction control also deactivated when the fuel cap was not replaced properly on the fuel tank. The failure has occurred several times and the dealer stated that they are aware of the defect; yet, they require the contact to come in whenever the check engine light was illuminated. The contact was concerned about the safety risk since it rains in florida and the traction control when activated engaged itself to assist with traction. The contact had to replace the charcoal canister valve. The dealer also stated that the failure was normal and not a danger. The contact is concerned about the safety risk. The failure mileage was 70,000.

Filed Feb 22, 2010 · Electrical · 100,000 miles · KS

2002 toyota sienna van. The vehicle computer will sporadically trigger the check engine light to come on based on no actual cause. This occurs around every 5,000 miles. It is typical for this computer failure to begin after 75,000 miles on this year of sienna and toyota's recall only covers vehicles up to 75,000 miles. The computer costs $1,000 to replace. This recall should be expanded to vehicles 10yrs old or less. There is probably an internal memo floating around toyota with a dollar figure attached branzely boasting how much they saved by "smoking" a shorter recall period past the us government. Toyota customer services has been hostile toward resolving this complaint.

Filed Apr 30, 2008 · Fuel system · 7,011 miles · NY

I bought my 2002 toyota sienna, 05/04/2004, 7011 miles after my check engine light was on. Dealer fixed it by replacing emission control charcoal canister. In june 2005 & after approximately 1500 miles later, gas refueling valve started shutting off, even though gas was not full. Dealer checked & said I need a new emission control charcoal canister, because my previous canister was out of warranty, I have to pay $495 (part+ labor) to replace it. I complained of this problem repeating soon, dealer could not give satisfactory answer. In consumers website I have found out that there are lots of complaints about 2002 toyota vehicles. Is it possible this part in this year failed more often than normal?

Filed Apr 28, 2004 · Electrical · 42,000 miles · NH

Approximately a month ago the clock lost the time. 4/28/04 mileage 42k driving on nh highway rte 3 so. Approaching the bedford toll in the highspeed lane (40-45 miles per hour) through a construction zone when the vehicle lost all power! Enough speed left to pull into the left barrier and put the vehicle in park. Third attempt to start the vehicle and the power was regained. Autofair toyota dealer ship indicated that toyota had forwarded a champaign. Toyota corporate customer service indicated that the champaign is a service bulletin only and not to be confused with a recall. However, no warning light ever came on in the vehicle when this happened. Not check battery, check engine, nothing!

Filed Jan 22, 2004 · Body, Electrical · CA

A rattling noise was heard in the sliding door. The car vibrated when driven at any speed and the ignition switch was defective. The owner was frustrated with all that was happening with little or no results. *ak the check engine light had come on and was taken to the dealer on several occasions for the same problem. The front end was unstable. *sc