Check Engine Light Solid and Cruise control flashing


Asked by GuruL5R2X Mar 25, 2019 at 01:11 PM about the 2009 Subaru Legacy

Question type: Maintenance & Repair

My Check Engine Light is on Solid and the Cruise control flashing.  Can I drive
the car?  What is wrong?

3 Answers


Yes you can drive the vehicle, but be aware that it my go into reduced power mode and that will limit you to approximately 20 mph, so get this checked ASAP. Cruise control may or may not be related, it all depends on what is actually wrong.


The code is P0420. Now what?

2 people found this helpful.

It’s a catalyst code so either the catalytic converter has failed or the O2 sensor has. Still best to have it checked over so you don’t start just replacing parts hoping to fix the problem.

2 people found this helpful.

Your Answer:


Looking for a Used Legacy in your area?

CarGurus has 435 nationwide Legacy listings starting at $2,995.

Postal Code:

Subaru Legacy Experts

  • #1
  • #2
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Subaru Impreza
30 Great Deals out of 1,019 listings starting at $1,911
Used Subaru Outback
16 Great Deals out of 919 listings starting at $2,695
Used Subaru Forester
24 Great Deals out of 1,093 listings starting at $4,780
Used Toyota Camry
56 Great Deals out of 1,708 listings starting at $1,495
Used Honda Accord
52 Great Deals out of 1,622 listings starting at $100
Used Subaru Impreza WRX
29 listings starting at $9,498
Used Honda Civic
127 Great Deals out of 8,252 listings starting at $1,595
Used BMW 3 Series
87 Great Deals out of 1,878 listings starting at $2,990
Used Nissan Altima
44 Great Deals out of 1,186 listings starting at $1,544
Used Toyota RAV4
114 Great Deals out of 3,915 listings starting at $2,995
Used Subaru Impreza WRX STI
40 listings starting at $13,450
Used Honda CR-V
69 Great Deals out of 5,918 listings starting at $3,999
Used Hyundai Sonata
32 Great Deals out of 1,391 listings starting at $3,990

Used Cars for Sale

2020 Subaru Legacy For Sale
79 listings starting at $23,527
2019 Subaru Legacy For Sale
7 Great Deals out of 43 listings starting at $19,745
2018 Subaru Legacy For Sale
23 listings starting at $15,490
2017 Subaru Legacy For Sale
63 listings starting at $12,995
2016 Subaru Legacy For Sale
5 Great Deals out of 60 listings starting at $8,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.