2011 Toyota Tundra Problems

What owners report

Owners of the 2011 Tundra most often describe the secondary air injection system: a check engine light combined with a sudden drop in power or a limp mode, frequently diagnosed as water or moisture in the air pumps and switching valves. Steering rack leaks and rear leaf spring problems are the next most common themes, with complaints spread from under 20,000 miles to well past 150,000.

1. 1
   Engine

   Secondary air injection failure / limp mode (P2442)

   • 33 complaints (25%)
   • median 87,000 mi at 5.6 yrs old (25 state mileage)
   • owner-quoted repair $2,860 (median of 11 quotes)
   • filed 2014–2024

   Owners describe the check engine light, traction or stability control light coming on, and the truck dropping to roughly 20-30 mph with little or no acceleration. Dealers and shops typically diagnose the secondary air injection pump or air switching valves, often citing water or moisture intrusion or corrosion, and quote repairs in the several-thousand-dollar range. Several owners say coverage was offered on earlier model years but not on their 2011, and a few report the symptom returning after repair. Reported from about 40,000 to 220,000 miles, with many between 40,000 and 95,000 miles; several owners note it appeared on a cold start or a normal morning start.

   10 related service bulletins

   What to check: Ask whether the air injection pump and switching valves have been replaced, and whether any warranty enhancement or bulletin work was done. Scan for pending P2442 or related codes and watch for a check engine light on a cold start.

   2 excerpts from owner complaints in NHTSA records

   “Check engine light came on and I ask was it a recall on the air injection and secondary air pumps needs to be replaced. Maintence person said it should have showed up on his computer at the shop. I was driving when that check engine light came on and air switching valves.”

   NHTSA complaint #11170034, filed 2019-01, 93,635 miles

   “The check engine light and the acs light came on while driving. The truck went into a limp mode and would not accelerate properly. I took the vehicle to bob tyler Toyota in pensacola florida. They determined that it was the air injection pump in the emission's system. They stated that the pump had water in it. My extended warranty would not cover the repairs stating it was a known Toyota problem for my vehicle. The warranty company sent me a Toyota service bulletin (t-sb-0160-11). …”

   NHTSA complaint #10954478, filed 2017-02, 68,215 miles
2. 2
   Steering

   Power steering rack leak and loss of assist

   • 19 complaints (14%)
   • median 76,100 mi at 5.8 yrs old (14 state mileage)
   • 1 mention a crash, fire or injury
   • filed 2012–2024

   Complaints describe fluid leaking from the steering rack, sometimes collecting inside the rack boots rather than dripping on the ground, followed by steering that becomes heavy or binding. Some owners report the assist disappearing while driving, and in one case a boot burst after turning the wheel to full lock. Owners describe the rack being replaced or the leak being noted as not covered. Reported from roughly 10,000 to 220,000 miles, with many between 70,000 and 125,000 miles; several trucks were stock with no lift or off-road use.

   Recall 21V920000

   What to check: Check the steering rack boots on both sides for fluid, inspect the power steering reservoir level, and ask whether the rack has been replaced. A recall covers an oil leak from the steering gear on certain Tundra vehicles, so confirm whether this truck was included and repaired.

   2 excerpts from owner complaints in NHTSA records

   “I was finished doing my oil change and noticed my rack and pinion boot had an oil leak on the passenger side, I wiped it off and it seems like a small leak for now. The truck on has 73.2k miles on it and it's completely stock, no modifications at all. It's a daily driver and is strictly street driven, no off roading. The rack and pinion shouldn't leak at all with this low mileage and being stock.”

   NHTSA complaint #11269284, filed 2019-10, 73,200 miles

   “Rack and pinion seals failed causing the power steering fluid to leak inside the boots on the end of the rack and pinion assembly therefore not leaking onto the ground so there was no indication of a problem until the power steering fails to work properly while driving the vehicle. Toyota is aware of the defect but refuses to admit there is a faulty part or design problem.”

   NHTSA complaint #10810176, filed 2015-12, 10,500 miles
3. 3
   Body and structure

   Truck bed and frame corrosion

   • 8 complaints (6%)
   • median 80,000 mi at 9.6 yrs old (5 state mileage, few)
   • filed 2016–2024

   Owners describe rust forming from underneath the bed, around the bed mounting bolts, and on the frame, in some cases progressing to holes through the bed floor. Several note the truck was garaged or had a bed cap for most of its life. Complaints describe dealer visits where the vehicle was not covered by a recall for the condition. Reported between roughly 70,000 and 165,000 miles, often on trucks in northern or coastal use.

   What to check: Crawl under the truck and inspect the bed floor, bed bolt areas and frame rails for scale or perforation, and check the crossmembers above the spare tire.

   2 excerpts from owner complaints in NHTSA records

   “Like many others on here, my truck bed and structure has rusted over certain supports from the bottom up. My vehicle has had a topper since it was new, and it has now developed heavy rust under the paint in the front corners over a brace. There are many forum entries and complaints about this issue.”

   NHTSA complaint #11324293, filed 2020-05, 80,000 miles

   “The bed of my 2011 Tundra is rusting through from the bottom up. The truck has had a topper over the bed since shortly after purchasing brand new and has never spent a night outside of the garage. The rust issue could be a safety hazard as the frame or other components could be compromised in a crash if they are not structurally sound.”

   NHTSA complaint #11022283, filed 2017-09, 70,000 miles

Buying note. Check the air injection system history and steering rack condition first, since those account for the largest share of what owners report on this model year, and inspect the frame and bed for rust. A pre-purchase scan for stored codes and a look at service records will show whether the known bulletins have already been addressed.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.