4th Gen Tacoma Grille Shutter Malfunction Check Engine Light

25 Terra iForcemax on 37"s

Congo · 2026-03-20T02:16:31+00:00

Hello all, I have a 25 Terra TRD Sport hybrid, just started phase 1 of the build and I couldn't be happier. Not a ton of 37 inch information out there, I hope some of this helps you guys. Went from 285/70/18 (34's) on stock sport rims completely stock suspension with zero rub. Did this for about 15k, was averaging about 18-19mpg. Now I have Ironman IM2.5 stage 2 3.5" lift, KMC KM719 17x8 +35, Nitto Recon Grappler 37x11.50 tires. Backwoods Adventure Mods roof rack and sliders, Toyota factory metal skids and trail hunter rear diff skip (being installed this weekend), Dr. KDSS rear track bar bracket. Could not be happier with the IM2.5's initial impression is the upgrade to 2.5" body shocks is drastic, the ride extremely comfortably. I have been told by multiple people that these coil overs specifically break in after about 600 miles so we shall see if that is true, but if they ride even nicer than what it is already I will be ecstatic. I only have 200 miles on the new lift and tires, so far nothing but amazing things to say about the ride quality and overall look of a Tacoma on 37's. Currently getting 14mpg (on the dash/not corrected for size difference). Once I get more time and and many more miles on this current setup I will post more information. But this specific tire and wheel setup has only a little rub at full lock on the front felt, I plan on doing some real flexing and trimming next weekend, I will keep you posted. Please let me know if you have any questions about anything I am running, I will answer to the best of my ability. Shout out to Sunshine State Overland Outfitters for the suspension install and alignment, great, knowledgeable group of guys for anyone in the central FL area.

TRD JON

Administrator

Staff member

Jun 11, 2024

Soooooo, I just took my new Tacoma to the dealer for a check engine light that came on for the grille shutter malfunctioning, along with several other warnings on the dash. I took a photo of all the warnings that came on. My dealer has ordered I believe a whole new grille shutter assembly to fix it. I will keep you all updated on the fix, hopefully in the next week or so when the part comes in. The good news is that the vehicle was totally drivable. It just randomly came on.

Check my video here: